Qiqisu: It is an ultra-efficient killing insecticide. It has stomach poisoning and contact killing effect on cockroaches. It is very toxic to juveniles, nymphs and mites. It is good for 0.5 g of active ingredient per 667 m 2 . The effect, but does not kill the eggs, the killing speed is slow, the duration of the effect can be as long as 20 to 30 days. After the contact with the drug, the symptoms of paralysis appear, inactivity and no feeding, and death after 2 to 4 days. It has a direct contact and killing effect on the predatory natural enemies, but the residual agent on the surface of the plant can be quickly degraded, and has little effect on natural enemies. It is easily degraded in the environment and has no residue on the crop. It is suitable for use on food crops such as fruit trees and vegetables. It is an ideal bio-killing agent. Control red spiders on apple red spider, hawthorn red spider, two-spotted spider mites and citrus red spider, solanacea and melon crops, spray with 1.8% emulsifiable concentrate 3000~4000 times. Although the drug is highly toxic to humans and animals, it is safe to use due to its low dosage and should not be used excessively.
Phenylsulfate is used to control P. sinensis: the worm mainly harms apples, pears and dates. The old larvae are made in the soil under the tree tray for wintering and wintering. After the next year, they are unearthed after appropriate rainfall, and they are made in summer. And phoxim has a strong poisoning effect on unearthed larvae and summer sorghum. Therefore, the apple orchard can induce adult insects in the peach small trap for 3 consecutive days, and use phoxim to control the ground under the tree. The method is: before the application, the weeds are removed under the canopy, 0.5 kg of 50% phoxim emulsifiable concentrate per 667 m 2 and 50 kg of fine soil are mixed, and the poisonous soil is sprinkled in the tree tray (the diameter of the tree disc is larger than the projection of the canopy) 1 m), pour into the soil 1 cm deep, or use 50% emulsifiable oil 0.5 kg to 150 to 300 kg of water, spray or water (more than water, the drug penetrates deep into the soil, can improve the efficacy), and then into the soil, If the insect density is large, or the soil is not concentrated, it can be applied once in half a month. The peach heartworms in Liyuan and Hawthorn Garden are unearthed later and concentrated, and can be applied once in the initial period.
Sai Dan control apple rust daisy: rust daisy is also called apple jaundice, its occurrence is similar to apple sputum. The green tendencies are significant, so seedlings and young trees are seriously damaged. The damaged blade is bent laterally to the back. In recent years, apple orchards have used a large number of highly effective broad-spectrum insecticides such as pyrethroids to reduce the number of natural enemies. The natural control of natural enemies is weakened, which is why the damage of rust daisy is worse. Saidan is an organochlorine insecticide, also known as Shuodan and endosulfan. It is moderately toxic to humans and animals, but it can be completely degraded in the environment without chronic toxicity. It has contact and stomach toxicity to pests, and has a certain fumigating effect at high temperatures. Control apple rust line Jerusalem artichoke, use 35% Sai Dan emulsifiable concentrate 3000~4000 times liquid, spray control in the early stage of rolling leaf, the effect period is more than 14 days, the control effect is excellent, and obviously better than 20% annihilation 3000 Double liquid, 40% omethoate 1000 times liquid, is the first choice for the control of apple rust. This product is highly toxic to fish and should be used to avoid contamination of water sources and fish ponds.
Imidacloprid control against pear hibiscus: Pear carp is the most difficult pest to control pear trees. Adults and nymphs prick the needle into the new shoots, petioles, and mesophyll tissues to suck the juice, causing the leaves to wrinkle and the heavy ones to fall off. The nymph also secretes a large amount of mucus, which often causes mold parasitism, leading to early leaves, and also affects the annual yield. Imidacloprid is a highly effective agent for controlling pear hibiscus. This medicine is a chlorinated nicotine-based highly effective systemic insecticide. It has good quick-acting effect, low toxicity to humans and animals, and no adverse effects on natural enemies and beneficial organisms. Pear mites are overwintered by female adults in the gaps of trunks and weeds and fallen leaves. Before the germination of the pear flower buds began, the flower buds of the pears were in the late stage of the buds. At this time, the adults began to lay eggs, which is a favorable opportunity to control the worms. 20% Kangfu polysoluble powder 4000 times liquid or 10% imidacloprid wettable powder 2000 times liquid spray. Focus on spraying moss. The residual effect period can reach 15 days, and the control effect is higher than 4.5% beta-cypermethrin EC 1500 times solution and 40% hirudin emulsion spray. In the early stage of the second generation of pear hibiscus, continuous use twice can basically control its damage.
Phosphorus killing and control of citrus scale insects: killing phosphorus, also known as speed-killing, methotrexate, is a broad-spectrum, high-efficiency insecticide of dithiophosphates, has contact and stomach toxicity to pests, no systemic However, it can penetrate into the plant tissue, and has a prominent effect on the control of the scale insects, and has a certain control effect on the cockroaches, and the residual effect period is 10 to 20 days. Control citrus stalk mites, sputum sputum, spray with 40% emulsifiable oil 800~1000 times, spray with 800~1000 times for sputum, use 500% emulsifiable milk 500~1000 times for citrus brown garden, in May From mid-July to mid-July, the brown cockroach is sprayed against the leaves, branches and fruits; the citrus meal is sprayed with 40% emulsifiable concentrate in the nymphal period by 1000~2000 times; the citrus red wax mites are in mid-June The citrus red wax eggs are sprayed once with 666~1000 times of 40% emulsifiable concentrate. The drug is unstable to alkali and cannot be mixed with alkaline agents, but can be mixed with most neutral insecticides and fungicides. The control of citrus scales should be applied before flowering and can only be used once in the growing season. The application of the fruit should not be less than 30 days, and it cannot be used to control vegetable pests.
Omethoate control of pine mites: pine mites are a devastating pest of pine trees, nymphs sucking sap under the trunk of the trunk, the damage is serious. Omethoate has a good control effect on pine mites. Generally, it is applied in the wintering and first-stage fixed nymphs. There are two commonly used methods: one is punching and injection, and the trunk is 1 meter high above the ground. Use 1.5cm wide woodwork chisel, round the trunk one week, hit 1 hole every 5 cm, deep into the xylem injection liquid, each 25-year-old pine tree with 40% EC 2, 3 ml, the mortality rate of pine cocoon is more than 80%; The second is the squeegee application. At the trunk one metre high from the ground, the rough skin is scraped off with a knife and is 20 cm wide to form two upper and lower staggered semicircular rings distributed on both sides of the trunk. Then 4 to 7 ml of 40% emulsifiable concentrate per tree. After adding a small amount of water to be diluted, it is applied to the phloem part which scrapes off the rough skin, and the general control effect can reach more than 90%.
Oxazole alcohol control Pear scab: diniconazole triazole endoscopic fungicide, bactericidal properties similar to powder rust, with protection and systemic treatment. The drug has excellent control effects on pear and apple scab. 12.5% ​​wettable powder 3000~4000 times liquid, spray at the beginning of the disease, even spray 3~4 times, each interval 15~20 days, and treat pear powdery mildew, rust and brown spot disease. However, care should be taken not to mix with the stone sulphur mixture and Bordeaux mixture, and to avoid long-term single use, so as to avoid the resistance of the bacteria. It can be used alternately with other fungicides with different mechanisms of action such as carbendazim and dexamethasone. China stipulates that the last application of pesticides should not be less than 21 days.
Sulfur Suspension and Crystal Stone Sulphur Mixer Controls Red Spider and Powdery Mildew in Fruit Trees: Sulfur has bactericidal and acaricidal effects. The size of bactericidal and killing power is greatly related to the powder. The sulphur suspension is a white or off-white fluid viscous suspension. It can be mixed with any proportion of water. Its sulfur particle size is less than 3 microns, the suspension rate is more than 90%, it is resistant to rain erosion, and its efficacy is far better than sulfur wettable powder. It is safer than fruit stone mixture. 50% sulfur suspending agent sprays 250~300 times before and after apple flowering, which can prevent powdery mildew, flower rot, and hawthorn red spider. The control effect on apple red spider is better than stone sulfur mixture. The control effect is closely related to the temperature. The control effect below 5 °C is not good. The drug damage may occur above 32 °C, and the dilution factor should be increased to 500-800 times. Crystal stone sulphur mixture is a stone sulphur mixture produced by the factory. It is easy to use and is 45% crystal. The active ingredient is also calcium polysulfide. After spraying, it will decompose to produce extremely fine sulfur particles with insecticidal and disease-preventing effects. Temperatures above 32 ° C, should be diluted 600 ~ 800 times. The agent is alkaline, can not be mixed with alkali-suppressing agents, and can not be mixed with Bordeaux mixture or used in a short period of time. In addition, the stone sulphur mixture can also be used to control peach leaf disease and grape felt disease. Peach leaf shrinkage is a disease caused by abnormal outer bacteria. The disease mainly occurs in the peach bud scales. When the peach buds germinate, the young leaves are curled, the color is red, the leaves thicken and become brittle, causing early defoliation, affecting the annual yield and flower bud formation. There is an off-white mildew on the leaf surface, which is the ascus layer of the pathogen. Peach leaf blight usually only infects once a year. The pathogens budded in the bud scales in the summer of the next year and the peach trees sprouted in the early spring, and did not infect the host. Therefore, the medicament has a significant effect on the prevention and treatment of peach leaflet disease. The key period of application should be mastered. After the early spring buds are inflated, when the petals begin to be red (not unfolded), spray 4 times to 5 degrees (Bome) stone sulphur mixture or crystal stone sulphur mixture 30 times solution. Thoughtful and meticulous, eradicating the overwintering bacteria on the tree, you can control the peach leaf disease. Grape felt disease is caused by a cockroach called the grape rust tick. It is lurking in the bud scales or overwintering under the old branches of the branches. After the germination of the grapes, the cockroaches and the newborns are concentrated on the back of the young leaves, sucking at the base of the hair cells, stimulating the growth of the hair cells of the leaves, producing blistering, small cavities on the back of the leaves, and the leaves shrink and become hard and uneven. It can lead to early defoliation and affect plant growth. It has been proven by many years of production practice that sulphur sulphur is an effective agent for the control of grape felt disease. Control method: In the spring, most of the winter buds of the grapes have sprouted, and when there is a small amount of blooming, spray 1~1:5 degrees (Bome) stone sulfur mixture, which can effectively kill winter mites. There may be slight phytotoxicity at the edge of the blade, but it has no effect. For varieties that are prone to phytotoxicity such as longan and non-nuclear black, 0.5 degree (Bome) stone sulphur mixture can be used. Grasping this time can get twice the result with half the effort. Entering June, a new generation will be produced. When the new vine is extracted, the leaf just sees a small amount of blister-like protrusions, spray 0.3~0.5 degree (Bome) stone sulphur mixture, can kill eggs and sputum can also be combined with grape red spider control, spray bromo oxime ester, amitraz Such as acaricide, can also be combined with the prevention and treatment of grape black pox disease, spraying 5 degrees (Bome) stone sulfur mixture before the germination of grape scale buds, is very effective in controlling the transfer of winter sorghum. It should be noted that since the seedlings and cuttings can be spread over long distances, when the new vineyard is built, the seedlings and cuttings should be treated with warm soup, and the seedlings or cuttings should be placed in warm water of 30~40 °C. Soak for 5~7 minutes, then transfer to 50 °C hot water for 5-7 minutes to kill the cockroaches in the bud scale.
Prevention and treatment of apple yellow leaf disease by ferrous sulfate: Apple yellow leaf disease is also called iron deficiency chlorosis, which is a physiological disease caused by iron deficiency in trees. Because iron has a catalytic effect on the formation of chlorophyll and a component of respiratory enzymes, chlorophyll can not form when iron is deficient, so that the leaves are lemon yellow or white, and the new shoots die, which seriously affects the growth and development of apples. Yellow leaf disease can occur when pears, hawthorns, grapes, apricots and other fruit trees are deficient in iron. In the saline-alkaline soil or areas with high calcareousity, the ferrous iron is fixed and the incidence is heavier. It is effective to apply ferrous sulfate to soil or tree to spray and control apple yellow leaf disease. The application of iron in the soil is carried out with 50 times of ferrous sulfate before the germination of the fruit trees. Each plant is filled with 50-100 kg of liquid medicine. It can also be applied with ferrous sulfate at the same time as the application of farmyard manure. Iron is dissolved in water, mixed with manure, and ditched into the soil around the canopy. Each 10-year-old apple tree is applied with about 500 grams of ferrous sulfate and 50 kilograms of manure; one application can be maintained for 1 to 2 years; Iron is in the growth stage of new shoots. Spray 0.3%~0.5% ferrous sulfate solution on the canopy, spray once every 15~20 days, spray twice.
Multi-mildew prevention and control of apple ring disease: the disease mainly harms branches (commonly known as rough skin disease) and fruits (commonly known as round rotten fruit disease). With the widespread transplanting of highly susceptible Fuji apples, the hazards of the disease are becoming more and more serious, and the rate of rotten fruit can be as high as 70%. It has been confirmed by scientific research that 50% more mildew WP can control apple ring rot disease than other commonly used agents. Polymyxin is compounded by carbendazim and carbendazim, and there is a compound of carbendazim and carbendazim. Cross resistance. The inhibition rate of 50% polymyxin 1500 times on the growth of apple ringworm mycelium is 100%, which is higher than 70% methyl thiophanate WP 800 times. The pathogen can continuously infect the fruit from 10 days after the apple flower to the fruit ripening. However, due to the low sugar content in the fruit and the high content of the powder in the young fruit period, the pathogen is in a latent state, and the fruit begins to appear in the near mature stage. Therefore, the prevention and treatment of apple ring disease will be sprayed in a timely manner 1 week after the flowering. The economical and effective suitable concentration is 1200 times liquid. According to the distribution of rainy days, the spraying effect is better than that of the same spraying times of 70% methyl thiophanate WP 8.0 times, and the fruit-preserving effect is extremely obvious. In the orchard where heavier brown spot disease occurs, it should be used alternately with Bordeaux mixture to achieve the purpose of preventing low cost and treating brown spot disease.
Thiabendazole control fruit rot disease and preservation: thiabendazole is also called Tekto, bismuthine, is a benzimidazole fungicide, has systemic, protective and therapeutic effects, its endocrine conduction is mainly apical conduction . It has a wide spectrum of bactericidal activity and is effective against deuteromycetes, ascomycetes, and basidiomycetes, but not against oomycetes. It has positive interaction characteristics with benzimidazoles such as benomyl. The products are 42% and 45% suspending agent, 25%, 60% and 90% wettable powder, 3% smoke agent, mainly used for post-harvest preservation and preservation of fruits and vegetables. Use spray or dip method. Prevention and control of rotten fruit during storage period of banana: After harvesting, use 42% suspension agent 600~900 times liquid soaking fruit for 1-3 minutes, remove and dry for packing; control citrus storage period penicillin, green mold, rot, anthracnose Etc. After harvesting, use 42% suspension agent 500~800 times liquid soaking fruit for 3~5 minutes, remove and dry, basket and cryopreservation; control apple malic acid, use 42% suspension agent 800 times after harvesting After immersing the fruit for 3 minutes, the storage period can be extended; the mango anthracnose can be controlled and the fruit can be digested with 360% and 450 times of liquid suspension for 3 minutes after harvesting, which can reduce the harm of mango anthracnose and prolong the storage time.
Isocarbazide against apple spotted leaf disease: Isocarbazide, also known as chlorpyrifos, is a contact-protective fungicide for diimide. Wide spectrum of sterilization, can inhibit spore germination and production, can also control the growth of hyphae, various diseases caused by Alternaria alternata, Botrytis, such as apple spotted leaf disease, tobacco brown spot disease, ginseng spot disease, tomato early The disease and various crops of gray mold have good control effects. Apple spotted leaf deciduous disease is an important disease caused by the virulent strain of apple ring rot, which is highly pathogenic, especially high-quality apples such as Red Marshal, Red Star, India, Fuji and other susceptible diseases, resulting in a large number of early defoliation. The pathogens overwinter in the affected leaves and shoot buds, and the apples spread a large number of conidia after spreading the leaves for initial infection. Therefore, apple spotted deciduous disease should be based on early drug control. The specific method is: when the apple falls 10 to 15 days, when the leaf rate of the spring shoot leaves reaches 10%, the spraying begins, and the second drug is sprayed every 15 days. Spray again in the autumn shoot growth period, and spray 50% of the medicinal hydrating powder 1000~1500 times each time. Apple uses up to 3 times a year, and the last time the spray is taken from the fruit (safe interval) is not less than 7 days.
Bacteria poisoning prevention and control apple rot disease: The disease is an invasive disease caused by weak parasitic bacteria, and is an important disease that weakens tree, dead branches, dead trees, and destroys orchards. Therefore, strengthening cultivation management, improving tree nutrient levels and improving disease resistance are the fundamental measures to prevent the disease. On this basis, the lesions are treated in time, and the medicament kills the bacteria. The bactericidal virgin is a disinfectant for controlling chicken cockroaches. The active ingredient is dioctylaminoethylglycine acetate, which is low in toxicity to humans and animals, and has good control effects on fungal diseases and viral diseases of various crops. The principle is mainly to destroy the cell membrane of the pathogen, inhibit the respiration, coagulate the protein, and denature the enzyme to inhibit bacteria and bactericidal action. The product is 5% water. The toxin is used to clear the poison after the sickness is scraped, which can effectively prevent recurrence. In the peak of spring incidence, combined with scraping the old skin, use the prismatic vertical sputum method to scrape the disease that is easy to see, and scrape the dry skin around the disease, revealing the white skin, usually scraping at least 3 times. Fruit trees are prone to sickness after falling flowers, and should be checked once. After the surface ulcer appeared in summer and autumn, it was scraped off by scraping. When the surface ulcer spreads to the deep layer in the late autumn and early winter, it is carefully scraped once. After scraping the diseased surface and surface ulcer, use 50% solution of 5% bacteria and 100 ml of dilution solution per square meter, and evenly spread the bark of 2~3 cm at the diseased area and scraped surface 1~2 times. You can also remove the diseased sputum, first use the knife to draw a long oval circle around the diseased ridge, cross the deep knives in the middle of the sputum, deep into the xylem, and then evenly spread the diluted liquid on the diseased plaque with a brush. It will fully penetrate and spread into the affected area. After about 7 to 15 days, the disease will be chapped, lifted and shedding, forming a new healing tissue. The drug promotes healing and can effectively prevent the recurrence of rot.
Zinc Sulfate Controls Apple Leaflet Disease: Apple leaflet disease is mainly caused by deficiency of zinc in the tree. The symptoms are that the leaves are small and thin, the leaves are grayish yellow, the internodes are short, and the small leaves are lotus-like, which can cause the tree to be weak, the fruit set and the small fruit phenomenon must be solved by the zinc supplementation of the tree. Ye Shi: 3 weeks after apple Xiehua, spray with whole plant with 0.1% zinc sulphate solution, or spray 0.6% zinc sulphate solution before autumn apple leaves; Trunk application: use toilet paper to draw 0.5% sulfuric acid The zinc solution is cut into 4 longitudinal slits at the base of the diseased branch, deep into the xylem, and then the toilet paper of the sputum liquid is covered, and the toilet paper is tightly wrapped with a plastic film. Practice has proved that this method has excellent effect on controlling lobular disease caused by zinc deficiency, and the dosage is low, the operation is simple, and side effects such as burning leaves are not caused.
Silica control apple rust: apple fruit rust is a common physiological disease, especially the golden crown apple peel is thin, after the young fruit stage is badly stimulated, the lower cortical cells split to produce a cork forming layer, causing the stratum corneum to crack. Peeling off, the cork of the peel is rust-colored, and the appearance and quality of the fruit are deteriorated. The cause of fruit rust is more complicated. Most research scholars believe that 10 to 40 days after falling flowers, the temperature fluctuates sharply, the cold wind stimulates, and the low temperature and high humidity for several days are beneficial to the production of fruit rust. Spraying Bordeaux mixture and other copper preparations, antibacterial, trichlorfon, stone sulfur, chlorothalonil, amitraz and other chemical pesticides, is often an important cause of fruit rust. Therefore, the use of chemical pesticides in the young fruit period should pay attention to the selection of varieties, avoid spraying pesticides such as Bordeaux liquid which is easy to rust, and use pesticides such as carbendazim and pyrethroid to reduce fruit rust. After bagging, timely bagging can prevent the occurrence of fruit rust or spray the rust inhibitor silica 200 times solution or the high-fat film (Jing 2b) 40 times solution every 10 days after the flower is dropped. effect.
Phenylsulfate is used to control P. sinensis: the worm mainly harms apples, pears and dates. The old larvae are made in the soil under the tree tray for wintering and wintering. After the next year, they are unearthed after appropriate rainfall, and they are made in summer. And phoxim has a strong poisoning effect on unearthed larvae and summer sorghum. Therefore, the apple orchard can induce adult insects in the peach small trap for 3 consecutive days, and use phoxim to control the ground under the tree. The method is: before the application, the weeds are removed under the canopy, 0.5 kg of 50% phoxim emulsifiable concentrate per 667 m 2 and 50 kg of fine soil are mixed, and the poisonous soil is sprinkled in the tree tray (the diameter of the tree disc is larger than the projection of the canopy) 1 m), pour into the soil 1 cm deep, or use 50% emulsifiable oil 0.5 kg to 150 to 300 kg of water, spray or water (more than water, the drug penetrates deep into the soil, can improve the efficacy), and then into the soil, If the insect density is large, or the soil is not concentrated, it can be applied once in half a month. The peach heartworms in Liyuan and Hawthorn Garden are unearthed later and concentrated, and can be applied once in the initial period.
Sai Dan control apple rust daisy: rust daisy is also called apple jaundice, its occurrence is similar to apple sputum. The green tendencies are significant, so seedlings and young trees are seriously damaged. The damaged blade is bent laterally to the back. In recent years, apple orchards have used a large number of highly effective broad-spectrum insecticides such as pyrethroids to reduce the number of natural enemies. The natural control of natural enemies is weakened, which is why the damage of rust daisy is worse. Saidan is an organochlorine insecticide, also known as Shuodan and endosulfan. It is moderately toxic to humans and animals, but it can be completely degraded in the environment without chronic toxicity. It has contact and stomach toxicity to pests, and has a certain fumigating effect at high temperatures. Control apple rust line Jerusalem artichoke, use 35% Sai Dan emulsifiable concentrate 3000~4000 times liquid, spray control in the early stage of rolling leaf, the effect period is more than 14 days, the control effect is excellent, and obviously better than 20% annihilation 3000 Double liquid, 40% omethoate 1000 times liquid, is the first choice for the control of apple rust. This product is highly toxic to fish and should be used to avoid contamination of water sources and fish ponds.
Imidacloprid control against pear hibiscus: Pear carp is the most difficult pest to control pear trees. Adults and nymphs prick the needle into the new shoots, petioles, and mesophyll tissues to suck the juice, causing the leaves to wrinkle and the heavy ones to fall off. The nymph also secretes a large amount of mucus, which often causes mold parasitism, leading to early leaves, and also affects the annual yield. Imidacloprid is a highly effective agent for controlling pear hibiscus. This medicine is a chlorinated nicotine-based highly effective systemic insecticide. It has good quick-acting effect, low toxicity to humans and animals, and no adverse effects on natural enemies and beneficial organisms. Pear mites are overwintered by female adults in the gaps of trunks and weeds and fallen leaves. Before the germination of the pear flower buds began, the flower buds of the pears were in the late stage of the buds. At this time, the adults began to lay eggs, which is a favorable opportunity to control the worms. 20% Kangfu polysoluble powder 4000 times liquid or 10% imidacloprid wettable powder 2000 times liquid spray. Focus on spraying moss. The residual effect period can reach 15 days, and the control effect is higher than 4.5% beta-cypermethrin EC 1500 times solution and 40% hirudin emulsion spray. In the early stage of the second generation of pear hibiscus, continuous use twice can basically control its damage.
Phosphorus killing and control of citrus scale insects: killing phosphorus, also known as speed-killing, methotrexate, is a broad-spectrum, high-efficiency insecticide of dithiophosphates, has contact and stomach toxicity to pests, no systemic However, it can penetrate into the plant tissue, and has a prominent effect on the control of the scale insects, and has a certain control effect on the cockroaches, and the residual effect period is 10 to 20 days. Control citrus stalk mites, sputum sputum, spray with 40% emulsifiable oil 800~1000 times, spray with 800~1000 times for sputum, use 500% emulsifiable milk 500~1000 times for citrus brown garden, in May From mid-July to mid-July, the brown cockroach is sprayed against the leaves, branches and fruits; the citrus meal is sprayed with 40% emulsifiable concentrate in the nymphal period by 1000~2000 times; the citrus red wax mites are in mid-June The citrus red wax eggs are sprayed once with 666~1000 times of 40% emulsifiable concentrate. The drug is unstable to alkali and cannot be mixed with alkaline agents, but can be mixed with most neutral insecticides and fungicides. The control of citrus scales should be applied before flowering and can only be used once in the growing season. The application of the fruit should not be less than 30 days, and it cannot be used to control vegetable pests.
Omethoate control of pine mites: pine mites are a devastating pest of pine trees, nymphs sucking sap under the trunk of the trunk, the damage is serious. Omethoate has a good control effect on pine mites. Generally, it is applied in the wintering and first-stage fixed nymphs. There are two commonly used methods: one is punching and injection, and the trunk is 1 meter high above the ground. Use 1.5cm wide woodwork chisel, round the trunk one week, hit 1 hole every 5 cm, deep into the xylem injection liquid, each 25-year-old pine tree with 40% EC 2, 3 ml, the mortality rate of pine cocoon is more than 80%; The second is the squeegee application. At the trunk one metre high from the ground, the rough skin is scraped off with a knife and is 20 cm wide to form two upper and lower staggered semicircular rings distributed on both sides of the trunk. Then 4 to 7 ml of 40% emulsifiable concentrate per tree. After adding a small amount of water to be diluted, it is applied to the phloem part which scrapes off the rough skin, and the general control effect can reach more than 90%.
Oxazole alcohol control Pear scab: diniconazole triazole endoscopic fungicide, bactericidal properties similar to powder rust, with protection and systemic treatment. The drug has excellent control effects on pear and apple scab. 12.5% ​​wettable powder 3000~4000 times liquid, spray at the beginning of the disease, even spray 3~4 times, each interval 15~20 days, and treat pear powdery mildew, rust and brown spot disease. However, care should be taken not to mix with the stone sulphur mixture and Bordeaux mixture, and to avoid long-term single use, so as to avoid the resistance of the bacteria. It can be used alternately with other fungicides with different mechanisms of action such as carbendazim and dexamethasone. China stipulates that the last application of pesticides should not be less than 21 days.
Sulfur Suspension and Crystal Stone Sulphur Mixer Controls Red Spider and Powdery Mildew in Fruit Trees: Sulfur has bactericidal and acaricidal effects. The size of bactericidal and killing power is greatly related to the powder. The sulphur suspension is a white or off-white fluid viscous suspension. It can be mixed with any proportion of water. Its sulfur particle size is less than 3 microns, the suspension rate is more than 90%, it is resistant to rain erosion, and its efficacy is far better than sulfur wettable powder. It is safer than fruit stone mixture. 50% sulfur suspending agent sprays 250~300 times before and after apple flowering, which can prevent powdery mildew, flower rot, and hawthorn red spider. The control effect on apple red spider is better than stone sulfur mixture. The control effect is closely related to the temperature. The control effect below 5 °C is not good. The drug damage may occur above 32 °C, and the dilution factor should be increased to 500-800 times. Crystal stone sulphur mixture is a stone sulphur mixture produced by the factory. It is easy to use and is 45% crystal. The active ingredient is also calcium polysulfide. After spraying, it will decompose to produce extremely fine sulfur particles with insecticidal and disease-preventing effects. Temperatures above 32 ° C, should be diluted 600 ~ 800 times. The agent is alkaline, can not be mixed with alkali-suppressing agents, and can not be mixed with Bordeaux mixture or used in a short period of time. In addition, the stone sulphur mixture can also be used to control peach leaf disease and grape felt disease. Peach leaf shrinkage is a disease caused by abnormal outer bacteria. The disease mainly occurs in the peach bud scales. When the peach buds germinate, the young leaves are curled, the color is red, the leaves thicken and become brittle, causing early defoliation, affecting the annual yield and flower bud formation. There is an off-white mildew on the leaf surface, which is the ascus layer of the pathogen. Peach leaf blight usually only infects once a year. The pathogens budded in the bud scales in the summer of the next year and the peach trees sprouted in the early spring, and did not infect the host. Therefore, the medicament has a significant effect on the prevention and treatment of peach leaflet disease. The key period of application should be mastered. After the early spring buds are inflated, when the petals begin to be red (not unfolded), spray 4 times to 5 degrees (Bome) stone sulphur mixture or crystal stone sulphur mixture 30 times solution. Thoughtful and meticulous, eradicating the overwintering bacteria on the tree, you can control the peach leaf disease. Grape felt disease is caused by a cockroach called the grape rust tick. It is lurking in the bud scales or overwintering under the old branches of the branches. After the germination of the grapes, the cockroaches and the newborns are concentrated on the back of the young leaves, sucking at the base of the hair cells, stimulating the growth of the hair cells of the leaves, producing blistering, small cavities on the back of the leaves, and the leaves shrink and become hard and uneven. It can lead to early defoliation and affect plant growth. It has been proven by many years of production practice that sulphur sulphur is an effective agent for the control of grape felt disease. Control method: In the spring, most of the winter buds of the grapes have sprouted, and when there is a small amount of blooming, spray 1~1:5 degrees (Bome) stone sulfur mixture, which can effectively kill winter mites. There may be slight phytotoxicity at the edge of the blade, but it has no effect. For varieties that are prone to phytotoxicity such as longan and non-nuclear black, 0.5 degree (Bome) stone sulphur mixture can be used. Grasping this time can get twice the result with half the effort. Entering June, a new generation will be produced. When the new vine is extracted, the leaf just sees a small amount of blister-like protrusions, spray 0.3~0.5 degree (Bome) stone sulphur mixture, can kill eggs and sputum can also be combined with grape red spider control, spray bromo oxime ester, amitraz Such as acaricide, can also be combined with the prevention and treatment of grape black pox disease, spraying 5 degrees (Bome) stone sulfur mixture before the germination of grape scale buds, is very effective in controlling the transfer of winter sorghum. It should be noted that since the seedlings and cuttings can be spread over long distances, when the new vineyard is built, the seedlings and cuttings should be treated with warm soup, and the seedlings or cuttings should be placed in warm water of 30~40 °C. Soak for 5~7 minutes, then transfer to 50 °C hot water for 5-7 minutes to kill the cockroaches in the bud scale.
Prevention and treatment of apple yellow leaf disease by ferrous sulfate: Apple yellow leaf disease is also called iron deficiency chlorosis, which is a physiological disease caused by iron deficiency in trees. Because iron has a catalytic effect on the formation of chlorophyll and a component of respiratory enzymes, chlorophyll can not form when iron is deficient, so that the leaves are lemon yellow or white, and the new shoots die, which seriously affects the growth and development of apples. Yellow leaf disease can occur when pears, hawthorns, grapes, apricots and other fruit trees are deficient in iron. In the saline-alkaline soil or areas with high calcareousity, the ferrous iron is fixed and the incidence is heavier. It is effective to apply ferrous sulfate to soil or tree to spray and control apple yellow leaf disease. The application of iron in the soil is carried out with 50 times of ferrous sulfate before the germination of the fruit trees. Each plant is filled with 50-100 kg of liquid medicine. It can also be applied with ferrous sulfate at the same time as the application of farmyard manure. Iron is dissolved in water, mixed with manure, and ditched into the soil around the canopy. Each 10-year-old apple tree is applied with about 500 grams of ferrous sulfate and 50 kilograms of manure; one application can be maintained for 1 to 2 years; Iron is in the growth stage of new shoots. Spray 0.3%~0.5% ferrous sulfate solution on the canopy, spray once every 15~20 days, spray twice.
Multi-mildew prevention and control of apple ring disease: the disease mainly harms branches (commonly known as rough skin disease) and fruits (commonly known as round rotten fruit disease). With the widespread transplanting of highly susceptible Fuji apples, the hazards of the disease are becoming more and more serious, and the rate of rotten fruit can be as high as 70%. It has been confirmed by scientific research that 50% more mildew WP can control apple ring rot disease than other commonly used agents. Polymyxin is compounded by carbendazim and carbendazim, and there is a compound of carbendazim and carbendazim. Cross resistance. The inhibition rate of 50% polymyxin 1500 times on the growth of apple ringworm mycelium is 100%, which is higher than 70% methyl thiophanate WP 800 times. The pathogen can continuously infect the fruit from 10 days after the apple flower to the fruit ripening. However, due to the low sugar content in the fruit and the high content of the powder in the young fruit period, the pathogen is in a latent state, and the fruit begins to appear in the near mature stage. Therefore, the prevention and treatment of apple ring disease will be sprayed in a timely manner 1 week after the flowering. The economical and effective suitable concentration is 1200 times liquid. According to the distribution of rainy days, the spraying effect is better than that of the same spraying times of 70% methyl thiophanate WP 8.0 times, and the fruit-preserving effect is extremely obvious. In the orchard where heavier brown spot disease occurs, it should be used alternately with Bordeaux mixture to achieve the purpose of preventing low cost and treating brown spot disease.
Thiabendazole control fruit rot disease and preservation: thiabendazole is also called Tekto, bismuthine, is a benzimidazole fungicide, has systemic, protective and therapeutic effects, its endocrine conduction is mainly apical conduction . It has a wide spectrum of bactericidal activity and is effective against deuteromycetes, ascomycetes, and basidiomycetes, but not against oomycetes. It has positive interaction characteristics with benzimidazoles such as benomyl. The products are 42% and 45% suspending agent, 25%, 60% and 90% wettable powder, 3% smoke agent, mainly used for post-harvest preservation and preservation of fruits and vegetables. Use spray or dip method. Prevention and control of rotten fruit during storage period of banana: After harvesting, use 42% suspension agent 600~900 times liquid soaking fruit for 1-3 minutes, remove and dry for packing; control citrus storage period penicillin, green mold, rot, anthracnose Etc. After harvesting, use 42% suspension agent 500~800 times liquid soaking fruit for 3~5 minutes, remove and dry, basket and cryopreservation; control apple malic acid, use 42% suspension agent 800 times after harvesting After immersing the fruit for 3 minutes, the storage period can be extended; the mango anthracnose can be controlled and the fruit can be digested with 360% and 450 times of liquid suspension for 3 minutes after harvesting, which can reduce the harm of mango anthracnose and prolong the storage time.
Isocarbazide against apple spotted leaf disease: Isocarbazide, also known as chlorpyrifos, is a contact-protective fungicide for diimide. Wide spectrum of sterilization, can inhibit spore germination and production, can also control the growth of hyphae, various diseases caused by Alternaria alternata, Botrytis, such as apple spotted leaf disease, tobacco brown spot disease, ginseng spot disease, tomato early The disease and various crops of gray mold have good control effects. Apple spotted leaf deciduous disease is an important disease caused by the virulent strain of apple ring rot, which is highly pathogenic, especially high-quality apples such as Red Marshal, Red Star, India, Fuji and other susceptible diseases, resulting in a large number of early defoliation. The pathogens overwinter in the affected leaves and shoot buds, and the apples spread a large number of conidia after spreading the leaves for initial infection. Therefore, apple spotted deciduous disease should be based on early drug control. The specific method is: when the apple falls 10 to 15 days, when the leaf rate of the spring shoot leaves reaches 10%, the spraying begins, and the second drug is sprayed every 15 days. Spray again in the autumn shoot growth period, and spray 50% of the medicinal hydrating powder 1000~1500 times each time. Apple uses up to 3 times a year, and the last time the spray is taken from the fruit (safe interval) is not less than 7 days.
Bacteria poisoning prevention and control apple rot disease: The disease is an invasive disease caused by weak parasitic bacteria, and is an important disease that weakens tree, dead branches, dead trees, and destroys orchards. Therefore, strengthening cultivation management, improving tree nutrient levels and improving disease resistance are the fundamental measures to prevent the disease. On this basis, the lesions are treated in time, and the medicament kills the bacteria. The bactericidal virgin is a disinfectant for controlling chicken cockroaches. The active ingredient is dioctylaminoethylglycine acetate, which is low in toxicity to humans and animals, and has good control effects on fungal diseases and viral diseases of various crops. The principle is mainly to destroy the cell membrane of the pathogen, inhibit the respiration, coagulate the protein, and denature the enzyme to inhibit bacteria and bactericidal action. The product is 5% water. The toxin is used to clear the poison after the sickness is scraped, which can effectively prevent recurrence. In the peak of spring incidence, combined with scraping the old skin, use the prismatic vertical sputum method to scrape the disease that is easy to see, and scrape the dry skin around the disease, revealing the white skin, usually scraping at least 3 times. Fruit trees are prone to sickness after falling flowers, and should be checked once. After the surface ulcer appeared in summer and autumn, it was scraped off by scraping. When the surface ulcer spreads to the deep layer in the late autumn and early winter, it is carefully scraped once. After scraping the diseased surface and surface ulcer, use 50% solution of 5% bacteria and 100 ml of dilution solution per square meter, and evenly spread the bark of 2~3 cm at the diseased area and scraped surface 1~2 times. You can also remove the diseased sputum, first use the knife to draw a long oval circle around the diseased ridge, cross the deep knives in the middle of the sputum, deep into the xylem, and then evenly spread the diluted liquid on the diseased plaque with a brush. It will fully penetrate and spread into the affected area. After about 7 to 15 days, the disease will be chapped, lifted and shedding, forming a new healing tissue. The drug promotes healing and can effectively prevent the recurrence of rot.
Zinc Sulfate Controls Apple Leaflet Disease: Apple leaflet disease is mainly caused by deficiency of zinc in the tree. The symptoms are that the leaves are small and thin, the leaves are grayish yellow, the internodes are short, and the small leaves are lotus-like, which can cause the tree to be weak, the fruit set and the small fruit phenomenon must be solved by the zinc supplementation of the tree. Ye Shi: 3 weeks after apple Xiehua, spray with whole plant with 0.1% zinc sulphate solution, or spray 0.6% zinc sulphate solution before autumn apple leaves; Trunk application: use toilet paper to draw 0.5% sulfuric acid The zinc solution is cut into 4 longitudinal slits at the base of the diseased branch, deep into the xylem, and then the toilet paper of the sputum liquid is covered, and the toilet paper is tightly wrapped with a plastic film. Practice has proved that this method has excellent effect on controlling lobular disease caused by zinc deficiency, and the dosage is low, the operation is simple, and side effects such as burning leaves are not caused.
Silica control apple rust: apple fruit rust is a common physiological disease, especially the golden crown apple peel is thin, after the young fruit stage is badly stimulated, the lower cortical cells split to produce a cork forming layer, causing the stratum corneum to crack. Peeling off, the cork of the peel is rust-colored, and the appearance and quality of the fruit are deteriorated. The cause of fruit rust is more complicated. Most research scholars believe that 10 to 40 days after falling flowers, the temperature fluctuates sharply, the cold wind stimulates, and the low temperature and high humidity for several days are beneficial to the production of fruit rust. Spraying Bordeaux mixture and other copper preparations, antibacterial, trichlorfon, stone sulfur, chlorothalonil, amitraz and other chemical pesticides, is often an important cause of fruit rust. Therefore, the use of chemical pesticides in the young fruit period should pay attention to the selection of varieties, avoid spraying pesticides such as Bordeaux liquid which is easy to rust, and use pesticides such as carbendazim and pyrethroid to reduce fruit rust. After bagging, timely bagging can prevent the occurrence of fruit rust or spray the rust inhibitor silica 200 times solution or the high-fat film (Jing 2b) 40 times solution every 10 days after the flower is dropped. effect.
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