草莓采用大棚覆膜栽培的,棚内高温多湿,为病虫害的发生创造了有利条件。现将草莓常见病虫害及防治措施介绍如下: 一、常见病害 1.叶斑病主要危害叶片,典型症状为病斑中心呈灰色或灰褐色,四周紫褐色,状如蛇眼。该病温暖高湿时易发生,老叶先发病,逐渐危及全株。开花结果前发病轻,开始采收后大量 Strawberry cultivation using plastic shed, shed hot and humid, for the occurrence of pests and diseases have created favorable conditions. Strawberry now common pests and diseases prevention and control measures are described below: First, the common diseases 1 leaf spot disease main leaves, the typical symptoms of lesion center was gray or brown, surrounded by purple-brown, like snake eyes. The disease is prone to warm and humid, the first onset of the disease, and gradually endanger the whole plant. Slight onset of flowering before beginning a large number of harvest