Environmental Entomology (1993) 22, 843-848

Maurice J. Tauber, Catherine A. Tauber and Sana Gardescu (1993)
Prolonged storage of Chrysoperla carnea (Neuroptera: Chrysopidae)
Environmental Entomology 22 (4), 843-848
Abstract: Diapausing adults of Chrysoperla carnea Stephens 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 of C. carnea benefits 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 shipping C. carnea to 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.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
formulation/storage of bioagents

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
Chrysoperla carnea (predator)