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双线盗毒蛾是黑荆树的重要害虫之一,在福建一年发生7代,以幼虫越冬。卵成块产于小枝条上,3—11天孵化。幼虫五龄,少数四龄,以取食嫩叶为主,也取食叶柄、花序等。幼虫老熟时下树,多在草丛里,枯枝落叶中结茧化蛹,预蛹期1—4天。成虫羽化后当天即可交配,第2日开始产卵,每雌平均产卵量214粒。成虫寿命3—10天。 室内试验表明:90％敌百虫晶体800—1000倍液,80％敌敌畏乳剂1000—2000倍液,50％辛硫磷乳油1000—2000倍液对4—5龄幼虫均有良好效果。化学农药防治应抓住越冬代或第一代幼虫盛发期。
Two-wire poisonous moth is one of the important pests of the black wattle tree, which occurs in Fujian for 7 generations a year and overwinters with larvae. Eggs into small pieces produced on the branches, 3-11 days hatching. Fifth instar larvae, a small number of age four, mainly to feed on young leaves, but also feeding petiole, inflorescence and so on. When the larvae mature tree, mostly in the grass, litter cocoon pupation, pre-pupal stage 1-4 days. Adults can be mated on the day after eclosion and lay their eggs on the second day with an average of 214 eggs per female. Adult life expectancy 3-10 days. Laboratory tests show that: 90% trichlorphon crystals 800-1000 times, 80% dichlorvos emulsion 1000-2000 times, 50% phoxim 1000-2000 times on 4-5 instar larvae have good results. Chemical pesticide control should seize the overwintering generation or the first generation larvae Sheng period.