Biological studies on Eretmocerus longipes Compere (Hym, aphelinidae), a parasitoid of Aleurotuberculatus takahashi David et Subramaniam (Hom, Aleyrodidae) in the laboratory

文献类型： 外文期刊

第一作者： Sengonca, C

作者： Sengonca, C;Liu, B

作者机构：

期刊名称：JOURNAL OF APPLIED ENTOMOLOGY-ZEITSCHRIFT FUR ANGEWANDTE ENTOMOLOGIE （ 影响因子：2.603； 五年影响因子：2.562 ）

ISSN： 0931-2048

年卷期： 1998 年 122 卷 5 期

页码：

收录情况： SCI

摘要： Experiments on the duration of development, the longevities on different diets at constant temperatures, as well as the influence of constant temperatures, relative humidities and photoperiods, on the emergence of Eretmocerus longipes Compere (Hym., Aphelinidae), a parasitoid of the citrus whitefly, Aleurotuberculatus takahashi David et Subramaniam (Hom., Aleyrodidae), were conducted separately under laboratory conditions in Fuzhou, Fujian Province, China in 1996. The duration of the development of E. longipes from egg to adult decreased significantly as a result of an increase in temperature, ranging from 56.7 days at 15 degrees C to 11.4 days at 35 degrees C. The longevities of E. longipes were strongly interaffected by temperatures and diets being 7.9 days at 20 degrees C, 4.5 days at 25 degrees C, and 2.8 days at 30 degrees C on a honey water diet, compared to 3.1 days at 20 degrees C, 1.2 days at 25 degrees C and 0.9 days at 30 degrees C without any food provision. However, no statistical difference between the provided diets of honey water or 3rd instars of the whitefly was found in longevities at the same temperature. With temperature increases in steps of 15-30 degrees C, the rate of emergence of the parasitoid increased from 44 to 89%. Relative humidity (RH) also significantly affected the rate of emergence of the parasitoid, which varied from 20.4% at 35% RH to 76.5% at 95% RH. On the other hand, the rate of emergence of the parasitoid was not significantly different at different photoperiods, amounting to 74.31% under total exclusion of light and 75.51% under the full light condition.

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