助剂3%卵磷脂·维生素E对不同杀菌剂防治番茄灰霉病的增效作用

Synergism Effect of 3%Lecithin·vitamin E on Different Fungicides in Controlling Tomato Gray Mold

采用田间试验方法,研究新型生物助剂3%卵磷脂·维生素E对杀菌剂25%啶菌噁唑乳油(EC)、38%吡唑醚菌酯·啶酰菌胺水分散粒剂(WG)防治番茄灰霉病的增效作用。结果表明:25%啶菌噁唑EC 1605 mL·hm^(-2)(560倍液)+3%卵磷脂·维生素E 180 mL·hm^(-2)(5000倍液)和38%吡唑醚菌酯·啶酰菌胺WG 750 g·hm^(-2)(1200倍液)+3%卵磷脂·维生素E 180 mL·hm^(-2)(5000倍液)处理对番茄叶部、果实灰霉病的最终防效显著高于相应杀菌剂单独处理,番茄产量也显著增加;两种杀菌剂各减量20%后加入3%卵磷脂·维生素E,对番茄叶部、果实灰霉病的防效以及番茄产量与各杀菌剂单独全量处理差异不显著,且没有任何药害现象,使用安全。

Taking field experiment method,this paper studied the synergistic effect of a new biological additive,3%lecithin·vitamin E on controlling tomato gray mold by fungicide pyrisoxazole 25%emulsifiable concentrate(EC)and 38%pyraclostrobin·boscalid water dispersible granules(WG).The results showed that the final control effects of pyrisoxazole 25%EC 1605 mL·hm^(-2)+3%lecithin·vitamin E 180 mL·hm^(-2),38%pyraclostrobin·boscalid WG 750 g·hm^(-2)+3%lecithin·vitamin E 180 mL·hm^(-2) on gray mold caused by Botrytis cinerea on tomato leaves and fruits were significantly higher than that of the single treatment of corresponding fungicide,and the tomato yield was also significantly increased.After 20%reduction of these 2 fungicides and then adding 3%lecithin·vitamin E,there were no significant differences between the control effect of gray mold on tomato leaves and fruits,yield by single and full dose treatments of each of the 2 fungicides.Also there is no phytotoxic effect.So it is safe to use.