几种植物源杀虫剂防治黑竹缘蝽效果分析

Analysis of the Effect of Several Plant Origin Insecticides on Notobitus meleagris Control

黑竹缘蝽是绿竹等丛生竹笋期的主要害虫,为拓宽防治黑竹缘蝽新途径,制定高效、经济、环保的防治措施,研究了5种植物源杀虫剂对黑竹缘蝽若虫的防治效果。结果表明:选用1.3%苦参碱可溶液剂、0.5%藜芦碱可溶性液剂、4%鱼藤酮乳油、1.2%烟碱苦参碱乳油、1%苦皮藤素乳油,运用弥雾机喷雾防治黑竹缘蝽若虫,药剂原药用量均为1 200 m L/hm2,药后3 d防治效果均可达90%以上,达到了有效控灾的目的。这5种药剂可用于无公害防治黑竹缘蝽若虫,试验结果可为生产上制定黑竹缘蝽若虫防治措施提供借鉴。

Notobitus meleagris is the main threat to Dendrocalamopsis oldhami in its shooting period. In order to find the new way to prevent and control N. meleagris and develop a high efficient,economic,and environmentally friendly control measures,the paper studied control effects of 5 insecticide of plant origin on N. meleagris. The results showed that he prevention measures of environmental protection,from the side of pollution-free control N. meleagris,and analyses the influence of several kinds of botanical insecticides N. meleagris nymphae control effects,the results showed that 1. 3% matrine soluble liquid agent,0. 5% veratrine soluble liquid agent,4% of rotenone oil and 1. 2%nicotinamide and 1% matrineec could be mixed and sprayed on N. meleagris nymphs with atomizing sprayer. The pharmaceutical technical dosage was 1 200 m L/hm^2,and the control effect 3 d later after the spray could be above90%,which can achieve effective control. The 5 insecticides could be used for pollution-free control of N. meleagris nymphs,and the test results would be the references for N. meleagris nymphs prevention and control in production.