酒曲害虫的发生及危害规律研究

四川泸州酒曲害虫有35种，隶属两纲五目19科，鞘翅目昆虫为主有26种，鳞翅目昆虫5种，其它目4种。土耳其扁谷盗和咖啡豆象为优势种群。曲库为各种曲虫越冬的主要场所，冬后残留虫为次年大发生的重要虫源。曲虫主要种群都具有较强的趋光性和群集性。全年发生动态为单峰形态，冬春季为发生低峰期，夏秋季达到发生高峰并暴发成灾，主要种群的昼夜活动规律显著，千后从曲库飞出在库外群集飞差异，14-18hr达到高峰，危害新曲的虫源主要来自曲库。曲虫从大曲高温发酵的保温排潮期开始危害，曲库贮存期损失最严重。

Studies on the occurrence and harm regularities of the pests of distiller

Pests of distillers yeast in Luzhou of Sichuan ha d 35 speciesbelonging to 19 family, 5 orders and 2 class, in which there were 2 6 pests from Coleoptera , 5 from Lepidoptera and 4 from other orders. Cryp tolestes turcicus and Araecerus fasciculatus were the dominant species. The storage house of distillers yeast was the major location for o verwinter of pests, and the survival pests after hibernating were the major sour ce of pests in the next year. The major species of pests had stronger photokines is and sociability. Annual occurrence dynamic showed that the pests had a low_pe ak period in Winter_Spring season, and reached a high_peak period and caused great damage in Summer_Autuam season. The pests flew out of storage and gather flying in the afternoon and reached maximum at 14－18 oclock, indicating a significant act ion regularity at day and night. The pests started to cause damage in the period s of heat preservation and humid removal of distillers yeast fermenting. The distillers yeasts during storage were damaged more severely.