SOME MORPHOLOGICAl AND BIOLOGICAL ASPECLS, AND LAND SNAIL KILLING BEHAVOUR OF Megase/ia scalaris LOEW ( DIPTERA : PHORIDAE ). | ||||
| Journal of Plant Protection and Pathology | ||||
| Article 1, Volume 29, Issue 2, February 2004, Page 903-910 PDF (729.27 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jppp.2004.239507 | ||||
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| Author | ||||
| H. A. A. Zedan, | ||||
| Plant Protection Research Institute, Agric. Res. Center, Dokki, Giza, Egypt. | ||||
| Abstract | ||||
| All stages of M. scalaris were investigated and described based on morphological characteristics of larva, pupa and adult stages. The results of the biological studies under laboratory conditions (25 ± 2 'C & RH 80 ± 5 %) indicated that the incubation, larval, pupal, preoviposition, oviposition and postoviposition periods were 1 ± 0.0, 4.43 ± 0.14, 6.8 ± 0.08, 1.2 ± 0.08,4 ± 0.45 and 2.5 ± 0.16 days, respectively. The life span of M.scalaris was 19.93 ± 0.82 day. M.scalaris females showed differences in their oviposition rates in response to alive and dead snails. However, M.scalaris females exhibited higher response to lay eggs on dead (53.75) as compared to alive snails (20.75 eggs I female I day). The efficiency of the parasitoid, M.scclaris 3rd instar larvae was affected by the host species. The parasitoid recorded a relatively higher K-values in response to E.vermiculata than M.cartusiana at all tested densities, | ||||
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