50%CHORUS WG防治辣椒灰霉病药效试验初报

Studies on Chemical Controll of Botrytis cinerea in Pepper by 50% CHORUS WG

对新型苯氨基嘧啶类杀菌剂50%CHORUSWG防治辣椒灰霉病的田间效果进行了试验。结果表明:50%CHO-RUSWG防治辣椒灰霉病的防治效果较好。用量为120g/100L水,喷药液50～70L/667m2,药后7d、10d对叶部病害的防效分别为71.63%、72.83%,对果实病害的防效分别为74.49%、75.337%。50%CHORUSWG是二甲酰亚胺类杀菌剂的良好替代药剂。

Effect of 50%CHORUS WG,one of the pyrimidine fungicides,on controlling Botrytis cinerea in Pepper was investigated.The results showed that 50%CHORUS WG is one of the best fungicides on controlling the disease and it may be the substitute of dicarboximide fungicides.The recommended application is to spray 50～70 l per 667m2 of the pesticide solution prepared at rate of 120g 50%CHORUS WG dissolved in 100 l water. Its control effects on leaf disease were 71.63%,72.83% respectively in the 7d,10d after spraying while on fruit disease were 74.49%,75.37% .