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Ecological And Biological Study For The Parasitoid Clausenia purpurea Ishii And Its Presence Ratio Compared To The Other Parasitiods Of Pseudococcidae In The Syrian Coast
- Nadia Al-Khateeb1. Louai Asslan2 and Qais Gazal1
- Directorate of Agriculture and Agrarian Reform of Lattakia Center for Rearing Natural Enemies, E-mail: nadia@arabscientist.org P. o Box 2012. Lattaki, Syria,
- Faculty of Agriculture, Damascus University, Damascus, Syria, E-mail: louai@arabscientist.org
Abstract
The study was carried out in 2001-2002 at Lattakia insectary-reared natural enemies. Infected samples of Pseudococcidae (Planococcus citri Risso, Pseudcococcus comostocki Kuwana and Pseudcococcus adonidium Linn.) were collected from citrus orchards and gardens. The presence ratio of the parasitoid C. purpurea was compared with other recovered parasitoids. The parasitoid was isolated and reared under laboratory conditions using different pseudococcids species and the potato as host plant. The generation's duration and the longevity of the parasitoid on each species of pseudococcids were estimated. The research results proved that there was a significant difference (p<0.05) between C. purpurea and the other parasitoids, and low co-relation with temperature (r = 0.03), meanwhile, the relation with humidity was (r = 0.4). The generation duration (adult to adult) was respectively 31.5±3.5, 29.6±3.3, 30.9±3.28, showing non-significant differences.
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