近几年来,随着农业产业结构的调整,我市棚室番茄种植量不断增加。由于重茬、连作、棚室管理不善等原因,为病虫害的发生提供了有利的生态环境,导致各种病虫害不断发生,如果不及时进行防治,将会导致减产甚至绝收。本文通过实践总结了灰霉病、叶霉病和晚疫病等的防治技术,希望能为棚室户生产提供指导。1.番茄叶霉病番茄叶霉病主要为害叶片,严重时也危害茎、果、花。一般情况下,叶片染病,叶面会出现不规则形淡黄色褪绿斑,叶背病部初生白色霉层,后霉层变为灰褐色或黑褐色绒状。条件适宜时,病斑正面也长有霉层,叶片由下向上逐渐卷曲,直至植株干枯。严重时可引起全株叶片卷 In recent years, with the adjustment of the structure of agricultural industry, the growing volume of tomato planting in greenhouse in our city has been continuously increasing. Because of continuous cropping, continuous cropping and poor management of greenhouses, it provides a favorable ecological environment for the occurrence of pests and diseases, which leads to the continual occurrence of various pests and diseases. If not carried out in time, it will lead to the reduction of production or even failure of production. This paper summarizes the prevention and cure techniques of gray mold, leaf mold and late blight through practice, hoping to provide guidance for greenhouse production. 1. Tomato leaf mold tomato leaf mold is the main damage leaves, also endanger the stem, fruit, flowers in severe cases. Under normal circumstances, the leaves infected, the irregular yellowish faded greenish spots appear on the leaf surface, leaf disease Department of the new white mold layer, the mold layer becomes brown or dark brown velveteen. When conditions are right, the front of the lesion is also moldy layer, the leaves gradually curled from the bottom up, until the plants dry. Serious can cause whole plant leaf roll