SEARCHING RATE AND INTERFERANCE VALUE OF Chrysopa septempunctata Wesm, AND Crysoperla c~rnea (Steph.) IN RESPONSE TO DIFFERENT APHID SPECIES | ||||
| Journal of Plant Protection and Pathology | ||||
| Article 10, Volume 28, Issue 5, May 2003, Page 4101-4110 PDF (525.76 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jppp.2003.243526 | ||||
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| Author | ||||
| Laila A. EI-Batran, | ||||
| Economic Entomology Dept., Fae. of Agric., Mansoura Univ. | ||||
| Abstract | ||||
| Searching rate and mutual interference value of the two Chrysopid predators, Chrysopa septempunctata Wesm. and Chrysoperla camea (Steph.) were evaluated in response to three species of aphids, Aphis gossypii Glover, Aphis craecivonJ Koch, and Rhopalosiphum maidis Fitch, in the laboratory. Ch. seotemounctet« larvae exhibited relatively higher searching ate in comparison with Chr. camea on all tested aphid preys. The searching rate for larvae of both Chrysopid predators was affeded by the larval age as welt as t e prey species. However, the searching rate increased as the larvae grew older. In aCJdition to both predators recorded the highest searching rate on A. gossypii followed by R. maidis and A. eraeivora, respectively. The regreSSion analysis indicated that both predators exhibited lower interference value on A. eraccivora and R. maidis than A. gossypi". Ch. septempunctata had a high searching rate with relatively high mutual interference in comparison with Chr. camea. | ||||
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