ARTHROPOD COMPOSTION IN COTTON FIELDS AS MONITORED BY PITFALL TRAPS AND SOME BIOLOGICAL ASPECTS OF TRUE SPIDER, Tnanatus albin; (Audouin) | ||||
| Journal of Plant Protection and Pathology | ||||
| Article 8, Volume 28, Issue 11, November 2003, Page 6941-6949 PDF (653.8 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jppp.2003.246324 | ||||
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| Authors | ||||
| A. S. Hendawy,; G. A. EI-Mezayyen | ||||
| Plant Protect. Res. Inst., Sakha Agrlc. Res. St., Agrlc. Res. Center | ||||
| Abstract | ||||
| Arthropod fauna was monitored in the cotton fields of Sakha Agricultural Research Station, Kafr EI-Sheikh during 2002 cotton growing season using kerosene- baited traps (KBT) and vinegar-baited traps (VBT). It was found that KBT was more efficient in collecting arthropods than V6T. The most occurring insect pests were Spodop < /em>tera Iittora/is, Lepidocerlinus incertus (Handschin)and Empoasca discip < /em>iens (Paoli), while the dominant natural enemies were Thenetus albini (Audouin), Monomorium pharaonls L. and Scymnus interrup < /em>tus (Geoze). However, the traps have also collected some visitors; Physiphora sp., Musca sp. and Platypalpus sp < /em>. Since T. albini was the most prevailing natural enemy, some of its biological aspects were investigated. Female spiderlings consumed more prey than males. Throughout the seven spidening stages of female, they consumed 502 prey of different species compared to 367 prey for male during lts six stages. The third stage look the shortest period, while the first one was the longest for both female and male. The spider adults lived for 143 and 43 days for female and male, respectively. The corresponding values of consumed prey were 227.5 and 144.50. Average laid egg- sacs per T. albini female was 5.50. The sex ratio. calculated from the total hatching spiderlings was 56.66 female to 43.34% male. | ||||
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