Rearing Chrysoperla externa Larvae on Artificial Diets

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• 作者：C E S Bezerra ; B B Amaral ; B Souza
• 关键词：Artificial diets ; mass rearing ; green lacewing ; biological control ; agricultural entomology
• 刊名：Neotropical Entomology
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：46
• 期：1
• 页码：93-99
• 全文大小：
• 刊物主题：Entomology; Agriculture; Life Sciences, general;
• 出版者：Springer US
• ISSN：1678-8052
• 卷排序：46

文摘

We tested three artificial diets for rearing larvae of Chrysoperla externa (Hagen) (Neuroptera: Chrysopidae), aiming at reducing the production costs of this predator. Two of the diets come from studies with other species of lacewings, and the third is a modification described in this paper. All diets were based on animal protein and were supplied to 2nd and 3rd instar larvae, whereas 1st instar larvae received eggs of Anagasta kuehniella (Zeller) (Lepidoptera: Pyralidae). We evaluated the preimaginal duration and survival, adult size, longevity and fecundity, egg hatchability, and predatory capacity of larvae produced. The performance of the diets was followed for seven generations. The diet we describe showed to be the best among the artificial diets tested. Our results show that C. externa can be successfully reared on artificial diets during second and third instars, reducing in 90% the dependency on eggs of A. kuehniella.