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VOL. 6, ISSUE 5 (2021)
Influence of long-term cold storage on the quality of predatory mite, Typhlodromus pyri scheuten (Acari: Phytoseiidae)
Authors
Dalia A Waked
Abstract
Typhlodromus pyri is a commercially available predatory mite used to control broad pests in agricultural production. The inconsistent quality of mass-produced biocontrol agents is a major concern in augmentative biological control, where a few studies have tested. The ability to store predator eggs of Typhlodromus pyri at different low temperatures; 2, 5 and 10°C till five weeks was studied to investigate the effect of low temperature on some biological aspects of the predator for a long time. The storage at 10°C has shown the best results in upgrading some biological aspects, the consumption, the longevity and fecundity of predatory females compared with the control, where the longevity was 21.5 days and the fecundity was 40.6 eggs at 30°C. Also, there were significant differences when biological aspects are concerned. Increasing storage temperature and decreasing time of storage gave high fecundity rate near similar to the control treatment in addition to fertility of eggs. The cold storage of the predatory mite, Typhlodromus pyri eggs at 2°C caused reduction in female hatchability % and fecundity so, it can be recommended that, this type of storage should be avoided except when there are a high number of predatory eggs that can be stored for period up to 2 weeks till 4 weeks.
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Pages:180-183
How to cite this article:
Dalia A Waked "Influence of long-term cold storage on the quality of predatory mite,<em> Typhlodromus</em> <em>pyri</em> scheuten (Acari: Phytoseiidae) ". International Journal of Entomology Research, Vol 6, Issue 5, 2021, Pages 180-183
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