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Ahmad, N. (2017). EFFECT OF TEMPERATURE DEGREES ON THE BIOLOGICAL ASPECTS AND THERMAL REQUIREMENTS OF THERIDION INCANESCENS SIMON (ARANEAE: THERIDIIDAE) REARED ON SPODOPTERA LITTORALIS LARVAE. Menoufia Journal of Plant Protection, 2(1), 49-55. doi: 10.21608/mjapam.2017.125380
Naglaa F. R. Ahmad. "EFFECT OF TEMPERATURE DEGREES ON THE BIOLOGICAL ASPECTS AND THERMAL REQUIREMENTS OF THERIDION INCANESCENS SIMON (ARANEAE: THERIDIIDAE) REARED ON SPODOPTERA LITTORALIS LARVAE". Menoufia Journal of Plant Protection, 2, 1, 2017, 49-55. doi: 10.21608/mjapam.2017.125380
Ahmad, N. (2017). 'EFFECT OF TEMPERATURE DEGREES ON THE BIOLOGICAL ASPECTS AND THERMAL REQUIREMENTS OF THERIDION INCANESCENS SIMON (ARANEAE: THERIDIIDAE) REARED ON SPODOPTERA LITTORALIS LARVAE', Menoufia Journal of Plant Protection, 2(1), pp. 49-55. doi: 10.21608/mjapam.2017.125380
Ahmad, N. EFFECT OF TEMPERATURE DEGREES ON THE BIOLOGICAL ASPECTS AND THERMAL REQUIREMENTS OF THERIDION INCANESCENS SIMON (ARANEAE: THERIDIIDAE) REARED ON SPODOPTERA LITTORALIS LARVAE. Menoufia Journal of Plant Protection, 2017; 2(1): 49-55. doi: 10.21608/mjapam.2017.125380

EFFECT OF TEMPERATURE DEGREES ON THE BIOLOGICAL ASPECTS AND THERMAL REQUIREMENTS OF THERIDION INCANESCENS SIMON (ARANEAE: THERIDIIDAE) REARED ON SPODOPTERA LITTORALIS LARVAE

Article 7, Volume 2, Issue 1, January and February 2017, Page 49-55  XML PDF (436.28 K)
Document Type: Original Article
DOI: 10.21608/mjapam.2017.125380
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Author
Naglaa F. R. Ahmad
Plant Protection Research Institute, Agric. Research Center, Giza, 12618, Egypt
Abstract
Temperature degrees affect the development, growth, survival, and reproduction of spiders especially Theridion incanescens. Thermal effect and requirements of Theridion incanescens Simon, 1890 and the developmental stages was studied under laboratory conditions at 25 & 30°C and 60-70% RH. Spider individuals were fed every two days. First and second spiderlings were fed on the first instar larvae of Spodoptera littoralis (Boisduval). Later spiderlings were fed on 2nd larval instar of S. littoralis. Males and females reached maturity at the fifth spiderling after 36.08 & 26.83 and 34.14 & 25.25 days at 25 and 30°C,respectively.  Adult longevity, life span, fecundity of female and food consumption were reported.
Keywords
Life cycle; food consumption; thermal effect; life history; fecundity; spiders; Egypt
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