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甘蔗绵蚜虫俗称蔗螆等,我区各地均有发生,危害严重,是甘蔗生长中后期的主要害虫。成虫若虫聚居于叶背中脉两旁,用针状口器刺入蔗叶组织内吸食养分,使蔗叶干焦,甚至整株枯萎;虫体分泌蜜露在叶片上能招致煤烟病发生,影响叶片的光合作用,使蔗株生长矮缩,糖分减少,还会影响宿根蔗的发株。发生特点:甘蔗绵蚜虫是孤雌胎生繁殖的,在我区南部一年可发生20个重叠世代,终年营单性胎生,无论有翅与无翅成虫,均直接胎生仔蚜,每雌能产33—94
Sugar cane cotton aphids, commonly known as calamus, etc., have occurred in all parts of our region, endangering serious cane is the main pest in the late growth. Adult nymphs live in the dorsal veins on both sides, with needle-shaped mouthparts penetrate the sugarcane leaf tissue nutrients, the cane leaves dry coke, and even the whole plant wilt; insects secreted honeydew leaves can cause soot disease, the impact Leaf photosynthesis, so that cane growth and dwarfing, reducing sugar, but also affect the ratoon sugarcane stubble. Occurred characteristics: Sugar cane cotton aphid is parthenogenesis reproductive, in the southern region of my year can occur 20 overlapping generations, all year round of unisexuality, both winged and wingless adults, are directly unborn baby aphid, each female can produce 33-94