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芦笋是北京市密云县近几年新发展的产业,规模已经达333.33hm2,十四点负泥虫的发生是芦笋产业发展过程中最主要的虫害之一,制约着产业发展、影响农民增收致富,由于在防治过程中存在着采笋与打化学农药的矛盾,开展了几种生物农药防治芦笋十四点负泥虫试验,筛选出了5%天然除虫菊素乳油1000倍、1%苦皮藤素乳油70mL/667m2、0.36%苦参碱水剂1000倍、清源保600倍等几种生物农药,防治效果较好,药效持效期>7d。
Asparagus is a newly developed industry in Miyun County, Beijing. Its scale has reached 333.33hm2. One of the most important insect pests in the industrial development of asparagus is the occurrence of negative flies and dust at 14 o’clock, restricting the development of the industry and affecting the farmers’ income and wealth , Due to the conflict between mining shoots and chemical pesticides in the prevention and treatment process, several biological pesticides were tested for prevention and control of asparagus fourteen point negative pest insects, screened 5% natural pyrethrin EC 1000 times, 1% Carrageenan 70mL / 667m2, 0.36% matrine 1000 times, Qingyuan Paul 600 times and several other biological pesticides, prevention and treatment is better, the efficacy of persistence> 7d.