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有读者来电:受害番茄果实处于青果期,果脐、果柄处的果皮呈灰白色,生有较厚的灰色霉层。他问,番茄得了什么病,用什么药防治效果好?经电话回访,他的6亩大棚番茄已挂第三穗果,20多天前开始发病,病果灰白色,上面生有灰色霉层,发病多在果脐和果柄处。发病严重的大棚有70%的植株受害,几乎每穗果都有发生。曾当灰霉病用嘧霉胺等药防治,但效果不理想。当地近期有连续阴雨天气,棚内湿度较大。
A reader calls: Victims of fruit in the fruit of young fruits, umbilical, stalk fruit peel was gray, thick gray moldy students. He asked what kind of disease the tomato had and what kind of medicine was used to prevent it. After returning by phone, his 6-acre tomato had already hung the third spike and started to develop more than 20 days ago. His disease was gray-white, Mostly in the umbilical and stalk handle. 70% of the severely affected greenhouses have been affected by the disease and almost every panicle has occurred. Once Botrytis cinerea with pyrimethanil and other drugs prevention and treatment, but the effect is not satisfactory. The recent continuous rainy weather, shed humidity.