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桃蛀野螟属鳞翅目、螟蛾科,是四川高梁穗部害虫的主要虫种。该虫主要分布在盆中丘陵区、盆东平行岭谷区、成都平原和盆周山区,其次是盆南长江沿岸,盆中嘉陵江中下游和渠江下游沿岸的浅丘河谷地区。1998年该虫幼虫量上升为107.94头/百穗,占穗虫总密度的28.98％,危害率69.57％,成为影响高粱品质和产量的主要因素之一。一、生物学特性桃蛀野螟在川南年发生3—4代。在寄主高粱的穗期可发生2—3个为害世代。越冬幼虫4月上中旬始蛹,4月下旬至5月上旬始蛾,5月中下旬盛发。越冬代蛾主要集中在桃上产卵,第一代幼虫发生于5月下旬至6月下旬,主要危害桃子。第
Peach borer is Lepidoptera, Pyralidae, is the main species of Sichuan stern of the ear pests. The insects are mainly distributed in the hilly region of the basin, the parallel valley region of the basin east, the plain of Chengdu and the mountainous region of the basin, followed by the Yangtze River basin in the south of the basin, the shallow valleys and valley in the middle and lower reaches of the Jialing River and the lower reaches of the canal. In 1998, the larvae increased to 107.94 heads / 100 spikes, accounting for 28.98% of the total density of the ear crabs. The damage rate was 69.57%, which became one of the main factors affecting the quality and yield of sorghum. First, the biological characteristics Peach borer occurred in South Sichuan 3-4 generations. In the host sorghum spike can occur 2-3 damage generation. Overwintering larvae start in mid-April pupae, late April to early May early moths, mid-May Sheng Sheng. Overwintering moths are mainly concentrated on the peach spawning, the first generation larvae occurred in late May to late June, the main hazard to peaches. No.