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1991~1992年在陕北和关中系统调查,初步查明芦笋小管蚜(BrachycorynellaasparagiMordvilko)的天敌有40种,其中蚜茧蜂2种,蚜霉菌1种,瓢虫11种,草蛉4种,食蚜蝇7种,捕食蝽5种,蜘蛛10种。主要类群为瓢虫,陕北以多异瓢虫Hippodaniia(Adonia)veriedata(Oeze)为主,关中的七星瓢虫CoccinellaseplempunclalaL.和异色瓢虫Harnioniaaxyridis(Palaas)最多。陕北的天敌数量比关中多1.18倍。天敌高峰关中为6月中旬,陕北为7月10日左右,略晚于蚜虫高峰。异色瓢虫捕食芦笋小管蚜的功能反应研究表明,随着虫龄的增大,瓢虫对猎物的处理时间缩短,取食量增大。成虫处理猎物的时间极短,但取食量则较低。
From 1991 to 1992, a total of 40 natural enemies of Brachycorynellaasparagi Mordvilko were identified in the northern Shaanxi and Guanzhong systems. Among them, there were 2 species of aphid, 2 species of aphid, 1 species of ladybug, 4 species of herbaceous species, 7 kinds of insects, 5 kinds of predatory bugs, 10 kinds of spiders. The main taxa are ladybugs, and the northern Shaanxi province is dominated by Hippodaniia (Adonia) veriedata (Oeze), the Coccinella seplempunclala L in Guanzhong. And the largest number of Harnioniaaxyridis (Palaas). The number of natural enemies in northern Shaanxi more than 1.18 times. The peak of natural enemies off in mid-June, northern Shaanxi around July 10, slightly later than the aphid peak. The study on the functional response of the ladybug predation on asparagus aphid showed that with the increase of the worm age, the ladybug shortened the processing time of the prey and the food intake increased. Adults deal with prey for very short periods of time, but they consume less.