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苹果金纹细蛾(Lithocolletis ringoniella Mats.)在鲁中南地区1年发生5～6代,以蛹在苹果落叶内越冬,翌年3月下旬田间开始出现越冬代成虫,4月上旬达盛期。成虫羽化后于次日清晨5:00～6:00开始交配,持续交配1.5～3h,交配后不久在叶片背面产卵,单个散产,平均单雌产卵40余粒。幼虫孵化后直接蛀入叶片内取食叶肉,并在虫苞内化蛹。在15～30℃,卵、幼虫、蛹的发育历期分别为11.4～5.3d、20～16d、9～5d,完成1代需要28～45d。试验的7种杀虫剂中,灭幼脲三号能抑制金纹细蛾繁殖和生长发育,田间防治效果好、持效期长,施药适期为第1代成虫发生盛期。
Lithocolletis ringoniella Mats. Occurs in the central-southern Shandong Province for 5 to 6 generations in one year and pupae wintering in apple deciduous foliage. In winter, the overwintering adults begin to emerge in the late March of the next year, reaching peak in early April. Adult emergence from 5:00 am to 6:00 am after the emergence of the next day mating, continued mating 1.5 ~ 3h, shortly after mating on the back of the leaf spawning, a single casual, the average single female lay more than 40 eggs. The larvae hatch directly into the leaves and eat the mesophyll, and insects within the bud pupation. The developmental stages of eggs, larvae and pupae were 11.4-5.3d, 20-16d and 9-5d at 15-30 ° C, respectively, and 28-45 days after completion of the first generation. Among the seven insecticides tested, diflubenzuron III could inhibit the reproduction and growth of M. japonica, and the effect of field control was good and the persistence period was long.