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一、粘虫粘虫俗称绵虫蝗、行军虫、夜盗虫、剃枝虫,是一种暴发性的毁灭性的害虫。1、症状识别:粘虫的幼虫裸露在植物表面取食危害。一、二龄幼虫多隐藏在作物心叶或叶鞘中昼夜取食,但食量很小,啃食叶肉残留表皮,造成半透明的小条斑。五、六龄幼虫为暴食阶段、蚕食叶片,啃食穗轴。2、生活习性:粘虫无滞育现象,条件适宜,可连续繁殖。喜产卵于干枯苗叶的尖部,并具有迁飞的特性。幼虫有假死性,对农药的抵抗力随虫龄的增加而增加。
First, the armyworm Myxposis commonly known as Mian insects locusts, marching insects, night insects, razor bug, is an outbreak of devastating pests. 1, the identification of symptoms: armyworm larvae exposed on the plant surface feeding hazards. First and second instar larvae are more hidden in the crop leaf or leaf sheath feeding day and night, but the appetite is very small, grazing the residual epidermis leaves, resulting in translucent strip plaque. Five or six instar larvae for the gluttony stage, eroded leaves, eating corn cob. 2, habits: armyworm no diapause phenomenon, suitable conditions, continuous breeding. Like spawning in the tip of dried leaves, and has the characteristics of migration. Larvae have lethality, the resistance of pesticides increases with insect age.