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Safar, S., Mahmoud, M. (2016). Effect of Starvation on Some Biological Aspects of Steatoda triangulosa Walckenaer, (Araneae: Theridiidae). Journal of Plant Protection and Pathology, 7(12), 823-825. doi: 10.21608/jppp.2016.52459
Sherin H. M. Safar; M. F. R. Mahmoud. "Effect of Starvation on Some Biological Aspects of Steatoda triangulosa Walckenaer, (Araneae: Theridiidae)". Journal of Plant Protection and Pathology, 7, 12, 2016, 823-825. doi: 10.21608/jppp.2016.52459
Safar, S., Mahmoud, M. (2016). 'Effect of Starvation on Some Biological Aspects of Steatoda triangulosa Walckenaer, (Araneae: Theridiidae)', Journal of Plant Protection and Pathology, 7(12), pp. 823-825. doi: 10.21608/jppp.2016.52459
Safar, S., Mahmoud, M. Effect of Starvation on Some Biological Aspects of Steatoda triangulosa Walckenaer, (Araneae: Theridiidae). Journal of Plant Protection and Pathology, 2016; 7(12): 823-825. doi: 10.21608/jppp.2016.52459

Effect of Starvation on Some Biological Aspects of Steatoda triangulosa Walckenaer, (Araneae: Theridiidae)

Article 9, Volume 7, Issue 12, December 2016, Page 823-825  XML PDF (215.4 K)
Document Type: Original Article
DOI: 10.21608/jppp.2016.52459
Authors
Sherin H. M. Safar; M. F. R. Mahmoud
Plant Protection Dept., Fac. of Agric. Fayoum Univ., Fayoum, Egypt
Abstract
Steatoda triangulosa Walckenaer was reared on Tribolium confusum (Duv.) larvae under laboratory conditions (23-35ºC and 46-60% R.H.) to study the effect of starvation periods on spiderlings and adults.  For spiderlings: "immature stages" these were starved for 1, 2, 3 weeks and fully starved immediately after hatching from eggs. Results showed that only spiderlings which starved for one week could complete its life span, while spiderlings which starved for 2, 3 weeks and fully starved couldn’t complete their life cycle and also couldn’t enter adult stage. For adults: females and males were partially starved for four different starvation periods of 1, 2, 3 weeks and fully starved immediately after last molting. Fully starved females couldn’t enter their oviposition period. Adult females which starved for one week was deposited the highest number of oothecae with an average of 5.83 days compared with 7.2 days for satiated females.
Keywords
Steatoda triangulosa; Starvation; biological aspects
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