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保幼激素Altosid(ZR515)仅对4令蚊幼有活性作用,因此,期望研制一种具一定持效的新的Altosid剂型。作者对二种新的Altosid剂型在洪水前后应用的持效作了比较。方法:16只特殊构造的水池,试验时充满盐水。为使洪水前所施的药剂有准确可计的暴露时间,作如下模拟试验设计:8块5×7时厚的塑料盖,埋在深约1时的空旷地下,使其不受雨水和涨潮的影响,塑料盖四角打上木桩,示以范围。8个盖分成2组:Ⅰ组用含
The juvenile hormone Altosid (ZR515) is only active against 4-nematodes, and therefore, it is expected to develop a new and effective form of Altosid. The authors compared the efficacy of two new Altosid formulations before and after the flood. Methods: Sixteen specially constructed ponds were filled with salt water. In order to allow accurate pre-flood exposure time can be counted for the following simulation test design: 8 5 × 7 thick plastic cover, buried in the deep about 1 o’clock, so that it is free from rain and high tide The effect of plastic cover corners put on stakes, showing the range. Eight caps were divided into two groups: Group I with