几种生物农药防治芦笋十四点负泥虫田间药效试验

Efficacy Trials of Few Creatures Pesticides to Prevent and Control Crioceris quatuordecimpunctata in Field

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 the development of new industries in Miyun county of Beijing in recent years,it has already reached 333.33 hm2,Crioceris quatuordecimpunctata is one of the main pests duing industrial development of asparagus,by the industry development,the rich and incoming. For the prevention and control procedures exist in two bamboo and played the chemical pesticides,carried out some kind of biological control of Crioceris quatuordecimpunctata for the test,filtering out of 5% of the natural pyrethrum a one thousand times,1% celangulins EC 70 mL/667 m2,0.36% matrine AS 1,000 times,waiting for some 600 times kiyomoto the creature,prevention and control of pesticides effect well,the effect of the suburban above 7 d.