摘要
比较了苏·阿、Ｂ．ｔ．和虫螨克防治花椰菜小菜蛾的效果。药后１天，２％苏·阿可湿性粉 剂１００ｇ／６６７ｍ２的防效为９８．３％，高于Ｂ．ｔ．可湿性粉剂（１６０００ＩＵ／ｍｇ）５０ｇ／６６７ｍ２９５．９％的防效， 也高于０．９ ％虫螨克乳油 ５０ｍｌ／６６７ｍ２９５．４ ％的防效。药后１周，苏·阿的防效仍达 ９４．７７％，明显 高于Ｂ．ｔ．可湿性粉剂（１６０００ＩＵ／ｍｇ）５０ｇ／６６７ｍ２和０．９％虫螨克乳油５０ｍｌ／６６７ｍ２的防效。
Comparison of control efficacy against diamond black moth (Plutella xylostella L. ) among 2% B.t. - avermectin WP, B. t. WP(16000 IU/mg) and 0. 9% abamectin EC was made in 1999. One day latet after spraying, the control efficacy of 2% B. t. - aver- mectin WP 100g/667m2 is 98.3% , higher than those of B. t. WP (16000IU/mg) and 0 .9% abamectin EC 25ml/667m2, which of the later are 95. 9 % and 95 .4% respectively. One week later after spray- ing, the control efficacy of avermectin is still as high as 94. 77 %, much higher than those of B. t. WP (16000IU/mg) 50g/667m2 and 0 .9% abamectin EC 25nd/667m2.
出处
《农药》
CAS
北大核心
2001年第9期23-24,共2页
Agrochemicals
关键词
小菜蛾
苏·阿
花椰菜
防治
药效
Plutella xylostella, L.,B. t., avermectin, cauliflower.
