Prolonged Storage ofChrysoperla carnea(Neuroptera: Chrysopidae)
作者:
Maurice J. Tauber,
Catherine A. Tauber,
Sana Gardescu,
期刊:
Environmental Entomology
(OUP Available online 1993)
卷期:
Volume 22,
issue 4
页码: 843-848
ISSN:0046-225X
年代: 1993
DOI:10.1093/ee/22.4.843
出版商: Oxford University Press
关键词: Chrysoperla;biological control;mass-rearing
数据来源: OUP
摘要:
Diapausing adults ofChrysoperla carneaStephens were stored at low temperature (5°C) under short daylengths (10:14 [L:D] h) for 31 wk with little maintenance. Rates of survival were very high (≈97%), and both males and females retained high reproductive potential. Shortly after transfer to warm, long-day conditions,>90% of the pairs produced fertile eggs: initiation of oviposition after storage was synchronous and predictable. Subsequently, depending on the duration of storage, females oviposited an average of 230–350 eggs during the first 30 d of oviposition (≈50–70% of the eggs produced by unstored females). Except for one group that was stored for 31 wk, high levels of fertile oviposition persisted for ≈45 d after storage. Cold storage ofC. carneabenefits biological control efforts by providing flexibility and efficiency in mass-production to meet peak seasonal demands for eggs or young larvae; an alternative method of shippingC. carneato distributors who choose to harvest eggs (or young larvae) for sale; and a reserve supply of stock if insectary colonies fail or dwindle. It also makes standardized stock available for use in long-term ecological, physiological, or genetic research.
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