论文部分内容阅读
通过1.2%烟碱·苦参碱和0.3%苦豆豆2种药剂在临泽小枣食心虫生物防治试验,诱捕器测报红枣食心虫,采用定点调查的方法,分别于施药前、施药后60d,调查每株红枣树食心虫的活虫数,统计虫口减退率,计算防治效果。分析确定7月18日至8月1日为食心虫高发期,利用性激素可以充分减少果园农药的施用量,降低农药污染及残留;研究2种植物源药剂对红枣食心虫的防治效果,结果表明1.2%烟碱.苦参碱杀虫剂浓度为0.005%最佳,防治效果97.33%;0.3%苦豆豆浓度为0.0012%对红枣食心虫防治效果为92.09%。为临泽红枣食心虫生物防治提供了参考。
Through 1.2% nicotine · matrine and 0.3% sophora bean two kinds of pesticides in Linze jujube birch biological control tests, traps reported jujube borer, using the method of site-directed investigation, respectively, before spraying, 60 days after spraying , Investigate the number of living worms per jujube tree worms, counting the rate of decline of the population, calculate the control effect. Analysis determined that July 18 to August 1 for the moth period, the use of sex hormones can reduce the amount of orchards in the pesticide application, reduce pesticide contamination and residue; study two kinds of botanical source of jujube pod worm prevention and control results showed that the 1.2% Nicotine, matrine pesticide concentration of 0.005% is the best, the control effect of 97.33%; 0.3% bitter bean concentration of 0.0012% on jujube moth prevention and control of the effect was 92.09%. For Linze jujube wormwood biological control provides a reference.