Asparagus pest control 14 points negative mud insect

It is widely distributed in China, and there are 3-4 generations a year in Shandong and other places. The damage caused by adults and larvae gnawing on the tender stem or epidermis of asparagus can lead to the deformity of the bamboo shoot or eat it into a smooth rod, causing the bamboo shoot to become short, deformed or branched, and the quasi-leaves grow in clusters. Seriously dry and die. [control methods] ① clear bamboo shoot garden to get rid of insects, clean the fields before winter or early spring, remove withered branches and leaves, and concentrate on burning to eliminate overwintering adults. ② can be sprayed with 1500-2000 times of methomyl EC, 2000 times of aldicarb ultra-fine wettable powder, or 1500 times of 47% Lesbon EC before overwintering adults are unearthed, sprayed once every 7-10 days for 2-3 consecutive times. ③ mastered that spraying the above-mentioned insecticides in the seedling field and non-bamboo shoot field during the peak hatching period was beneficial to control the insect in the stage of low drug resistance and reduce the number of adults of the first generation. The field of collecting asparagus entered the peak period of egg hatching and larval damage in early August, which was the key period to control the pest, and the drug was stopped about 10 days before asparagus harvest.