为了寻找核桃举肢蛾有效的防治途径,我们进行了观察试验,简介如下。 一、发生规律及为害特点 此虫在当地一年发生一代,以老熟幼虫在树冠下1～2厘米深的土壤中,石块、枯枝落叶下结茧越冬。翌年5月中旬化蛹,蛹期7天,5月下旬出现成虫,6月初为成虫盛发期,成虫在黄昏时活动最活跃,趋光性强。卵多产于果实萼洼和果面伤疤内,一头雌 In order to find effective ways to prevent and control walnut moths, we carried out observation and test, which are summarized as follows. First, the occurrence of law and damage characteristics of the pest in the local generation a year to mature larvae in the crown 1 to 2 cm deep in the soil, stones, litter cocoon winter. In mid-May of the following year pupa pupation, pupal stage 7 days, adults appear in late May, adult early in June flourishing period, adult activity at dusk most active, strong phototropism. Eggs prolific in the fruit calyx depression and fruit scars, a female