论文部分内容阅读
1960—1961年在北京对棉蚜、桃蚜、棉红蜘蛛及山楂红蜘蛛进行的田间药效试验表明:(1)乐果对两种蚜虫及两种红蜘蛛的速效或残效均接近或超过E-1059,在食用作物上的残毒期较短(7日),使用范围也较广。(2)马拉硫磷的杀蚜效力也较好,但不如乐果,杀螨效力不强。(3)三硫磷粗制原油的杀螨效力很突出:对棉红蜘蛛的速、残效接近或超出 E-1059,显著超过甲基 E-1059和马拉硫磷;对山楂红蜘蛛的速、残效也接近 E-1059,对两种红蜘蛛的残效都比较持久,但杀蚜效力较差,远不如乐果。(4)AC-3741也具有高度的杀螨效力,对棉红蜘蛛的毒杀效力超出甲基 E-1059和马拉硫磷,残效也较好。
Field efficacy trials of cotton aphids, peach aphids, cotton spider mites and hawthorn spider mites from 1960 to 1961 in China showed that: (1) The available or residual effects of dimethoate to both aphids and two spider mites were close to or exceeded E-1059, on the edible crop residues on the shorter (7 days), the use of a wider range. (2) malathion kill aphids also better efficacy, but not as dimethoate, acaricide efficacy is not strong. (3) The anti-mite effectiveness of the crude crude of triphosgene is outstanding: the speed and residual effect of the spider mites on cotton are close to or beyond E-1059, significantly exceeding that of methyl E-1059 and malathion; , The residual effect is also close to E-1059, the residual effects of both spider mites are more lasting, but less effective kill aphids, far from dimethoate. (4) AC-3741 also has a high degree of miticidal efficacy, the toxicity of cotton spider mites than methyl E-1059 and malathion, the residual effect is better.