番茄灰霉病是近年来,随着保护地的发展而发生的重要病害,由于保护地条件常适宜该病发展,所以造成大量烂花,烂果。据1990年沙尔沁乡调查,受害番茄病果率高达50％以上,严重影响保护地番茄生产及市场供应。发病症状。病菌多先侵染残留于青果上的花瓣、花托和柱头。然后向果实和果柄蔓延,被害部初呈灰白色水浸状软腐,后 Botrytis cinerea in recent years, with the development of protected areas and the occurrence of important diseases, due to the protection of land conditions often suitable for the development of the disease, resulting in a large number of burnt-out, rotten fruit. According to a survey conducted in 1990 by Shaerqin Township, the rate of diseased tomatoes is as high as over 50%, seriously affecting tomato production and market supply in protected areas. Symptoms. Pathogens and more first invade remaining on the young fruit petals, receptacle and stigma. Then spread to the fruit and fruit stems, the victim was initially soft gray submerged soft rot, after