一、日本蔬菜灰霉病的发生情况目前,在日本采用乙烯薄膜温室中栽培的典型水果、蔬菜有黄瓜、甜瓜、西瓜、番茄、茄子、甜椒和草莓。(图1,略)即为这些蔬菜栽培面积的变迁情况。适宜于这些水果、蔬菜(除草莓外)的生长温度是如此之高,以致在日本它们在从秋季到来年早春寒冷季节栽培是不可能的。然而,当在乙烯薄膜复盖的温室栽培时,蔬菜生长保持在适宜温度,甚至在寒冷季节 First, the occurrence of Japanese gray mold disease At present, in Japan using ethylene film greenhouse cultivation of typical fruits, vegetables cucumber, melon, watermelon, tomato, eggplant, bell pepper and strawberry. (Figure 1, omitted) is the change of cultivated area of ​​these vegetables. The growth temperatures suitable for these fruits and vegetables (except strawberries) are so high that they are impossible to cultivate in Japan during the cold season from autumn to early spring in Japan. However, when grown in a vinyl film covered greenhouse, the growth of the vegetables is kept at a suitable temperature, even during the cold season