论文部分内容阅读
小菜蛾是危害十字花科作物的害虫。目前我国广泛使用拟除虫菊酯类农药,如溴氰菊酯、杀灭菊酪等防治小菜蛾。很多地区还定期(10天至半月)施药,效果显然很好,但易使害虫产生抗药性,而且污染环境。自1982年中国科学院动物研究所昆虫激素室合成了小菜蛾性信息素后,即与有关单位协作在我国南方和北方十几个点进行田间诱蛾和测报试验,取得显著效果。小菜蛾性信息素是雌蛾分泌到体外能引诱雄蛾前来交尾的一种化学物质。它具有很高的活性,一个橡皮头诱芯,在小菜蛾发生高峰期间,一昼夜最多可诱捕雄蛾2,194头,诱效可维持三个星期。长效诱芯诱效可维持一个
Plutella xylostella is a pest that endangers cruciferous crops. At present, pyrethroid pesticides are widely used in our country, such as deltamethrin, pyrethrum, etc. to prevent diamondback moth. Many areas also regularly (10 days to half a month) application of pesticides, the effect is clearly good, but easy to make pests resistant, but also pollute the environment. Since the synthesis of P. xylostella sex pheromone by the Institute of Zoology, Chinese Academy of Sciences in 1982, that is, with the relevant units in the southern and northern parts of China more than a dozen points in the field of moths and test reports, and achieved remarkable results. Plutella xylostella sex pheromone is a chemical that is secreted by female moths to induce mating in male. It has a high activity, a rubbery lure, which can trap up to 2,194 male moths for up to three days during the peak of the diamondback moth. Long-term effect of inducing one can be maintained