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自八十年代初期以来,番茄早疫病危害日趋严重,目前已成为番茄生产的主要病害。病害发生后引起叶片早枯、落叶、落果、断枝,受害果实降低商品价值.严重时提前拉秧败园,影响市场供应,减少经济效益。保护地、露地,春、夏栽种番茄均可发病。常年损失20—30％。一、发病规律病菌以菌丝体潜于病残体中,或
Since the early 1980s, tomato early blight has become more and more serious and has become a major disease in tomato production. After the occurrence of disease, it causes early withered leaves, deciduous leaves, deciduous fruits, broken branches and damaged fruits to reduce the commodity value, and raises seedlings in advance in serious cases, affecting market supply and reducing economic benefits. Protected areas, open field, spring and summer planting tomatoes can be disease. Perennial loss of 20-30%. First, the incidence of pathogens to mycosis latent disease in the body, or