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山楂粉蝶为山西果区早期的主要害虫。年发生—代,以三龄幼虫群集树梢吐丝营巢过冬,每巢平均10.5头。3月下旬平均气温4.2℃时开始出巢活动,4月上旬槟沙果花芽开绽,为出巢盛期。5月中旬为化蛹盛期。5月下旬为成虫羽化盛期。卵的孵化盛期在6月上旬平均孵化率79.62％。 山楂粉蝶各虫态有多种天敌。防治试验以46.6％1605的3000倍液加50％可湿性DDT的300倍液的混合剂,效果更佳。秋季落叶后或早春发芽前彻底剪除越冬巢是一种经济有效的措施。
Hawthorn pink butterfly as early fruit pests in Shanxi fruit area. Year occurred - on behalf of, to the third instar larvae clustering tree shoots spit out the winter nest, an average of 10.5 per nest. In late March, the average temperature of 4.2 ℃ began to go out of nest activity. In early April, Penza flower buds bloomed, leaving the nest peak. Mid-May for the pupation peak period. In late May for adult eclosion peak. The incubation period of eggs in early June the average hatching rate of 79.62%. Hawthorn pink butterfly various insect states have a variety of natural enemies. Control test with 46.6% 1605 3000 times plus 50% wettable DDT 300 times the mixture of liquid, better. It is a cost-effective measure to cut off the overwintering nests completely after the autumn leaves fall or in early spring before germination.