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saissetia coffeae

International Journal of Tropical Insect Science (1)

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Effects of temperature on the reproduction of Saissetia coffeae and its parasitoids
A. G. Ibrahim, M. J. W. Copland
Journal:

Insect Science and Its Application / Volume 8 / Issue 3 / June 1987

Published online by Cambridge University Press:

19 September 2011, pp. 351-353

Print publication:

June 1987
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Temperature influences the reproductive capacity of the Saissetia coffeae and its parasitoid. The lowering of temperatures increased the egg production of the scales. The high temperature (30°C) reduced the egg-laying of Metaphycus helvolus and resulted in a greater proportion of male progenies. However, oviposition and sex ratio of Scutellista cyanea were unaffected by high temperature. The high temperature too, accelerated the development of ovarian eggs of both parasitoids.