家庭养花简便除虫法

烟蒂:用10来个烟蒂的烟丝浸泡在100克水中一天左右,过滤去渣取其液,喷在花木上,可治蚜虫,在其液中加少量洗衣粉,还可治甲壳虫。

膜下低温AIP缓释局部熏蒸杀虫

目前，中央储备粮库除了新建库以外，还有相当一部分粮库没有配备环流熏蒸系统，致使每年常规熏蒸中都存在熏蒸杀虫不彻底、粮堆局部害虫繁衍的现象，给储粮安全带来了隐患。针对这种情况，我们临沂直属库采用了膜下低温AIP局部缓释熏蒸杀虫方法，扩展了磷化铝杀虫单一施药的使用范围，也给局部熏蒸施药方法提供了实验数据，取得了满意的效果。

书虱对储粮的危害及综合防治

近年来，粮仓中书虱的危害越来越严重。主要表现在：一是该类昆虫本身的取食作用造成粮食重量损失和品质下降；二是其尸体、排泄物污染粮食；三是书虱大量发生时往往造成储粮水分升高，温度上升乃至发生霉变；四是书虱可能传播一些病原菌，对过敏性病人引起严重的皮肤反应。书虱的生殖方式比较复杂，只要有一个卵或一个个体，都有可能在一个新的环境中建立起一个种群。它的繁殖能力强，一年发生3-4代，在16-35℃条件下完成一代仅需3-4周时间，成虫在27℃、

Effects of fertilization and herbicides on growth of young loblolly pine and infestations of Nantucket pine tip moth（Lepidoptera： Tortricidae）

A 2-year-old pine plantation was selected to receive treatments of fertilizers and herbicides to evaluate effects on Nantucket pine tip moth infestations and the tree growth parameters of height, diameter and volume increment. Nitrogen and phosphorus fertilizers, and hexazinone and sulfometuron methyl herbicides were used in creating six treatments： （i） control; （ii） phosphorus; （iii） nitrogen and phosphorus; （iv） phosphorus and herbicide; （v） nitrogen, phosphorus and herbicide; and （vi） herbicide. Treatments were applied in 1987 and 1988. In 1987, trees treated with nitrogen, phosphorus and herbicide had significantly greater height, diameter and volume growth than trees not receiving fertilizer treatments, but did not have significantly higher tip moth infestations than control trees. Treatments receiving phosphorus only had much lower tip moth infestation rates than other treatments except nitrogen and phosphorus. In 1988, tip moth infestations were uniformly low, with no differences in treatment effects observed.