6种杀菌剂对设施番茄灰霉病的防治效果

采用温室试验方法,研究咯菌腈、啶酰菌胺、嘧霉胺、乙霉威.多菌灵、腐霉利和甲基硫菌灵6种杀菌剂对设施番茄灰霉病的防效,以筛选防治番茄灰霉病的理想药剂。结果表明,6种杀菌剂对番茄灰霉病均有一定的防治效果。其中50%啶酰菌胺(用量750g/hm2)、50%咯菌腈(用量750g/hm2)2个处理对番茄灰霉病防治效果显著,对病叶和病果的平均防效分别达79.16%、87.95%和77.20%、85.84%;40%嘧霉胺(用量1 550g/hm2)、60%乙霉威.多菌灵(用量1 800g/hm2)2个处理对番茄灰霉病也有一定的防治效果,对病叶和病果的平均防效分别为63.15%、66.71%和70.48%、62.65%;50%腐霉利(用量1 500g/hm2)、70%甲基硫菌灵(用量2 580g/hm2)对番茄灰霉病的防效相对较差。

Effect of Six Fungicides against Botrytis cinerea on Tomato under Protected Facility Cultivation

The greenhouse experiment was carried out to study the control effect of six kinds of fungicides on tomato gray mold,to choose the ideal fungicides for preventing and controlling the disease.The results showed that the six kinds of fungicides all had certain control effect on tomato gray mold.The two treatments of 50% boscalid(750 g/ha) and 50% fludioxonil(750 g/ha) had significant control effect,with efficiency of 79.16% and 77.20% for diseased leaves,87.95% and 85.84% for diseased fruits;the two treatments of 40% pyrimethanil(1 550 g/ha) and 60% diethofencarbocarbendazim fludioxonil(1 800 g/ha) also had certain control effect on the disease,with efficiency of 63.15% and 70.48% for diseased leaves,66.71% and 62.65% for diseased fruits;50% procymidone(1 500 g/ha) and 70% thiophanate-methyl(2 580 g/ha) had relatively poor effect on tomato gray mold.