番茄叶霉病的防治番茄叶霉病近年已成为番茄上的主要病害，今年在我市日光温室番茄上发生严重。１、症状：番茄叶霉病主要为害叶片，严重时也为害茎、花和果实。发病初期叶背生白色霉斑，病斑近圆形至不规则形，霉斑多时可布满叶背，后期霉斑转褐色至黑绿色。被害叶正面往... Tomato leaf mold disease prevention and control of tomato leaf mold in recent years has become a major tomato disease, this year in our city sunlight greenhouse tomato serious. 1, the symptoms: tomato leaf mold is the main damage leaves, also severely damage stems, flowers and fruits. Early onset leaf back white mildew, lesion nearly round to irregular shape, mildew can be covered with leaves back, late mildew transferred brown to black-green. Victim leaves front to ...