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1 November 2012 Developmental Time and Survival of Trash-Carrying Versus Naked Green Lacewings, with Implications for Their Utility as Augmentative Biological Control Agents
Naoto Haruyama, Yuta Miyazaki, Kengo Nakahira, Atsushi Mochizuki, Masashi Nomura
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Abstract

Because of their importance and abundance as predators of pest insects in agroecosystems around the world, eight species of lacewings from four genera (Apertochrysa, Chrysopa, Chrysoperla, and Dichochrysa) were investigated to evaluate their performance when reared on eggs of Ephestia kuehniella Zeller, a factitious prey commonly used in mass rearing systems. In particular, a comparative assessment of trash-carrying versus naked species (ones not carrying trash on their backs) was performed. We measured the developmental times and survival rates of the eight green lacewings and compared these characteristics between trash-carrying and naked lacewing species. Survival during immature development was higher (77–87%) for the two naked species (Chrysopa pallens (Rambur) and Chrysoperla suzukii (Okamoto)) than for the trash-carrying species D. alcestes (33%). Immature and larval developmental times were significantly longer among the trash-carrying species than the naked species. The rapid development of naked green lacewings may be a strategy to decrease predation risk by aphid guarding ants and intra-guild predators.

© 2012 Entomological Society of America
Naoto Haruyama, Yuta Miyazaki, Kengo Nakahira, Atsushi Mochizuki, and Masashi Nomura "Developmental Time and Survival of Trash-Carrying Versus Naked Green Lacewings, with Implications for Their Utility as Augmentative Biological Control Agents," Annals of the Entomological Society of America 105(6), 846-851, (1 November 2012). https://doi.org/10.1603/AN12003
Received: 10 January 2012; Accepted: 1 July 2012; Published: 1 November 2012
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KEYWORDS
defensive strategy
factitious prey
immature survival
lacewing
trash carrier
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