Harm and law of occurrence: Jumping armor is also called taboo, and the main cause of rape is 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 September to October is the peak period of two damages. The rapeseed is seriously damaged in about October.
Prevention and treatment methods: The armor and the scorpion leaf can be combined and controlled together, and the key points are to prevent and control the jumping armor. Pharmacy with 9% cyanide emulsifiable concentrate 800 ~ 1000 times liquid, 10% kungfu * propofol emulsifiable milk 1000 ~ 1500 times liquid or 1.8% Avi * high chlorine emulsifiable milk 1000 times liquid.
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