Rapeseed beetle pest control mainly by the following two methods:
First, chemical pesticide control: control of adult pests can be used biological pesticide pesticide 0.5% alfalfa insecticide emulsifiable oil 800 times liquid, or 50% phoxim emulsifiable oil 1000 times liquid; control larvae should be in the egg hatching period, with 5% flu Nitrile suspension 2000 times solution, or 50% phoxim emulsifiable concentrate 1500 times solution, or 20% pyrethroid emulsifiable concentrate 1500 times, or 90% trichlorfon wettable powder or trichlorfon crystal 1000 times liquid spray control. It is controlled once every 7 days, and the general control is better than 2 to 3 times.
Second, agricultural control: completely remove the leaves and weeds in the field, use insect nets to eliminate adults. Pesticide manufacturer
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