灰霉灵防治灰霉病的田间药效

Biossay in vitro and Field Trial of Huimeiling for Controlling of Grey Mold

田间试验结果表明，４５％ 灰霉灵ＷＰ４００ 、５００ 和６００ 倍三种浓度处理的防效分别为６７．７０ ％ 、６４．２４％ 和５３ ．９０％ ，均高于对照药剂多菌灵（４０ ．５９ ％ ）和菌核净（３０．３５ ％） ，达极显著水平。其中灰霉灵稀释５００ 倍处理的防效与６００ 倍处理的防效差异显著，而与４００ 倍处理的防效处于同一水平。灰霉灵的室内抑菌效果也较理想。

The results of field trial indicated that the control effectiveness of 45% Huimeiling (carbendazim+dimethachlon)WP 400,500 and 600 times was 67.7%,64.2%and 53.90% respectively ,all significantly higher (at 0.01 level)than 40.59% of carbendazim and 30.35% of dimethachlon.There was marked difference of its effectiveness between 500 times Huimeiling and 600 times,while 500 times was nearly same as 400 times.