China Pesticide Network provides you with control techniques for rapeseed and stalks: 1, the damage and the law of occurrence: the jumper is also called the taboo, the main cause of the rape is the yellow-curved jumper. Adults and larvae can be harmful, and the most harmful ones at the seedling stage are often eaten into small holes, resulting in the loss of seedlings. Adults are good at jumping, flying at high temperatures, and the most active activities around noon. After the rapeseed is transplanted, the adult is transferred from the nearby cruciferous vegetables to the rapeseed, which is the most serious in autumn and spring.猿å¶ç”²: alias black shell armor, black worm, the main damage to rapeseed is the big 猿 leaf armor. The insects and larvae eat the leaves, and there are clusters that are harmful, causing the leaves to be riddled with holes. Every year from April to May and from September to October, the disease is at the peak of the disease , and rapeseed is seriously affected by about 10 months. 2, pesticide control methods: jump armor and scorpion leaf can be combined with prevention and control, focusing on prevention and control of the jumping armor and contact with the leaf. The medicament can be uniformly sprayed with 20% imidacloprid wettable powder 5-10 g plus water 50-60 kg; or 40% speed emulsified cream 60 ml plus water 50 kg spray; or 25% deltamethrin 2000-3000 times solution.
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