Abstract

Arma chinensis (Fallou) is an important predator of several agricultural and forestry pests. We tested the effects of three different prey species on the biological parameters of the predatory Ar. chinensis under laboratory conditions. These prey species consisted of Antheraea pernyi pupa, Plodia interpunctella larvae and Leptinotarsa decemlineata larvae. The results showed that prey species elicited a significant effect on development times, total survival rate, adult acquisition rate and reproduction. In contrast, the female proportion, survival rates of 3^rd instars and 5^th instars not significantly affected by prey species. An. pernyi pupa were the most suitable prey among those tested, and led to high survival rates, short development times, and high fecundity of Ar. chinensis. P. interpunctella larvae were also relatively favorable prey, whereas L. decemlineata larvae were less suitable and resulted in reduced development, survival and fecundity. Therefore, P. interpunctella larvae and L. decemlineata larvae can be fed to Ar. chinensis for turning both their harms into benefits and reducing the feeding and breeding costs of Ar. chinensis.

摘要

中华臂甲虫 (Arma chinensis (Fallou)) 是多种农业和林业害虫的重要捕食者。我们测试了三种不同猎物物种对捕食性 Ar 生物学​​参数的影响。实验室条件下的中华草。这些猎物物种包括柞蚕蛹、Plodia interpunctella幼虫和Leptinotarsa decemlineata幼虫。结果表明，猎物种类对发育时间、总存活率、成虫获得率和繁殖有显着影响。^{相比之下，雌性比例、3龄}和5^龄存活率受猎物种类影响不显着。一个。佩尔尼蛹是测试中最合适的猎物，其存活率高、发育时间短、繁殖力高。中华。P. interpunctella幼虫也是相对有利的猎物，而L. decemlineata幼虫则不太合适，导致发育、存活和繁殖力下降。因此，P. interpunctella幼虫和L. decemlineata幼虫可以喂Ar。化害为利，降低了Ar的饲养和繁殖成本。中华木。