山区育苗应注意防治斜纹夜蛾斜纹夜蛾食性极杂，寄主有棉花、大豆等作物，以往未见危害苗木，但近两年，我们在山区─—崇义县龙勾乡寺里村培育脐橙苗木时，发现该虫危害晚夏梢，危害程度一般在１０％左右，严重的田块可达３０％。１．危害时期及对象据观察，斜纹夜蛾危害... Mountain nursery should pay attention to prevention and control of Spodoptera litura infestation is extremely complex, the host of cotton, soybeans and other crops, the past no danger of seedlings, but in the past two years, we in the mountain ─ ─ Chongyou Longjuxiangsi Village cultivated navel orange seedlings When it was found that the pest damage late summer tip, the damage is generally about 10%, severe plots up to 30%. 1. Harm period and target It is observed that the damage of Spodoptera litura ...