论文部分内容阅读
百格粉板法是鼠迹法的新发展,是当前鼠密度调查和灭效评定方法中比较先进和准确的一种新方法。特别是经沧州地区一九八四年对杀鼠灵大米毒饵灭效观察和一九八六年在全区15个县(市)城乡大面积灭鼠前后鼠密度调查和灭效评定中反复应用和完善,使之更具有实用意义。由于它以一百个格做测迹计算,故称其为(?)格粉板法。一.工具和材料。1.粉板:取纤维板或
The 100-grid plate method is a new development of the mouse method. It is a new method that is more advanced and accurate in current rat density survey and extinction evaluation methods. In particular, the Cangzhou area was used to observe the killing of warfarin-induced rice bait in 1984 and the repeated use of rat density surveys and outbreds in a large area in urban and rural areas of 15 counties (cities) in 1986 And perfect, make it more practical significance. Because it does track calculation with a hundred grid, it is called (?) Grid plate method. I. Tools and materials. 1. Powder board: take fiberboard or