一、典型症状。该病可危害花、果、叶、茎,但主要是危害果实,特别是青果。发病后果皮呈灰白色、软腐,在病部长出大量灰色霉层。叶片受害多从叶尖开始,病斑呈“V”字形向内扩展,初呈水浸状,后变成浅褐色,潮湿时也生有灰霉。二、发病规律。冬春茬番茄一般12月至元月发病重,尤其是连阴天后发病更重,但初侵染时间较早,一 First, the typical symptoms. The disease can endanger flowers, fruit, leaves, stems, but mainly harm fruit, especially fruit. After the onset of the skin was gray, soft rot, grow a large number of gray mold layer in the disease. More leaf damage from the leaf tip, lesion was “V” -shaped inward expansion, the initial was flooded, after turning into a light brown, wet also gave birth to gray mold. Second, the incidence of law. Winter and winter tomatoes generally onset in December to January, especially with cloudy even more serious onset, but the initial infection time earlier, a