保护地番茄灰霉病生态防治配套技术

Study on the ecological control and integrated control of tomato gray mold in greenhouse

对保护地番茄灰霉病发生规律及防治进行了研究。结果表明 ,在相对湿度为 90 %以上的条件下 ,灰葡萄孢菌生长的适宜温度为 2 2～ 2 4℃ ;31℃以上高温对病原菌有抑制作用 ,低温高湿有利于病害发生。据此 ,采用生态防治、变温管理 ,在关键时期辅以高效烟剂为主的化学防治 ,可取得良好的防治效果。

The occurrence of tomato gray mold in greenhouse and its control were studied,and the results showed that the atmospheric temperature over 31 ℃ affected the spore bud of the pathogen.In condition of the air humidity over 90%,temperature at 22?24 ℃ in the day and at 15?17 ℃ at night was favourabl to disease occurrence.In order to improve the control efficiency,it is best to change atmospheric temperature in greenhouse and use chemicals in disease garden during the key periods at the growing stage of tomato.