蝼蛄是危害最剧、分布最广的地下害虫之一。以往施用666毒谷与对硫磷(1605)拌种防治,效果很好,但因毒谷需用大量粮食作饵料,对硫磷又系巨毒农药,因此使用上尚存在一些问题。近年来,有些地方应用滴滴涕拌种也收到了良好保苗效果,但对滴滴涕防虫保苗的作用,认识还不一致,有的认为是忌避作用,有的认为是毒杀作用,使用价值一直未能肯定,影响了大面积的使用和推广。为了有助于这一问题的讨论,现将我们对25%滴滴涕乳剂防治蝼蛄试验的结果整理出来,以供参考。一、25%滴滴涕乳剂拌种对出苗和幼苗生长的影响本组试验在室内进行,采用25%滴滴涕乳剂和1%666粉剂、50%乐果乳剂、50%敌百虫乳剂、对硫磷乳剂等五种农药的二种不同药量,对 蝼 蛄 is one of the most harmful and widely distributed underground pests. In the past, the application of 666 poisoning ditch and parathion (1605) seed dressing was very effective. However, due to the need of using a large amount of food for droughts and parathion to be a giant poisonous pesticide, there are still some problems in the use. In recent years, the application of DDT seed dressing in some places has also received good effect of preserving seedlings. However, the understanding on the role of DDT in preventing seedling is still not consistent. Some people think that it is a deterrent effect, and some think it is a poisonous killing effect. The use value has not been affirmed, Affected the large area of ​​use and promotion. In order to facilitate the discussion on this issue, we have now compiled the results of the 25% DDT emulsion control trial for reference. First, the 25% DDT emulsion seed dressing and seedling growth on the impact of this group of tests conducted indoors, using 25% DDT emulsion and 1% 666 powder, 50% dimethoate emulsion, 50% trichlorfon emulsion, parathion emulsion Two different doses of five kinds of pesticides, right