Chlorothalonil is a high-efficiency, low-toxic, low-residue, broad-spectrum fungicide with dual functions of prevention and treatment. The use of chlorothalonil can effectively prevent and cure greenhouse cucumber downy mildew and tomato early blight, late blight, gray mold and celery spot blight, amaranth gray mold and other diseases. The preparation can be applied before and during the onset of the disease, and the dosage is generally 250 to 300 grams per 667 square meters. Close the louvers and vents before casting, and then carry out fixed-point smoke or mobile smoke.
First, set the point to smoke. Select a few smoke points, place the smoke evenly on the ground (preferably hang), and ignite with incense or cigarette. This kind of smoke agent is packed in 100g small bag. The greenhouse can be used in the whole bag. The small shed can put the smoke powder in the small paper tube rolled up by the old newspaper, insert it into the fire, ignite it, or put 100 grams of smoke column. Cut into two pieces for use. The ignition sequence is sequentially ignited from the shed to the shed.
Second, mobile smoke. Place the smoke agent on the shovel, and after ignition, hold the shovel and slowly move from the shed to the outside of the shed. However, using this method to prevent poisoning is generally not recommended.
III. Precautions 1. The smoke in the shed should be sealed for at least 4 hours. The time for smoking should be carried out before and after sunset. The next day, the vents and vents can be fully opened for ventilation.
2. Use chlorothalonil aerosols only in greenhouses or greenhouses, and must be closed tightly.
3. Store the aerosols away from the fire source, and prevent moisture and high temperature. The ignition cannot be used with an open flame.
4. Pay attention to protect your eyes and skin when using. Wash your face, wash your hands and other exposed parts of your body with soapy water.
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