生态选择性 在目前还缺少理想的选择性杀虫药剂的时候,特别是对害虫天敌这一问题,多数理想的高效低毒及低残毒的杀虫药剂,也都是广谱性的(如合成除虫菊酯),要想用化学防治法而不伤及天敌时,就只好更多依赖于生态上的选择性。这在害虫综合治理中是特别重要的,也就是所谓“合理施用杀虫药剂”的问题。 无选择性的杀虫药剂可以通过使用方法、方式等的调节来达到有选择作用。以下就是常用的几种生态选择性。 Ecological selectivity In the absence of ideal selective insecticide, especially for natural enemies of pests, most of the ideal insecticide with high efficiency and low toxicity and low residual toxicity are also broad spectrum (such as synthesis Pyrethrins), in order to use chemical control method without hurting natural enemies, they had to rely more on ecological selectivity. This is of particular importance in the integrated management of pests, the so-called “rational application of pesticides”. Insecticidal insecticides can be selectively manipulated through the use of methods, methods, and the like. The following is commonly used in several kinds of ecological selectivity.