Volume 12, Number 43 (spring 2008)                   JCPP 2008, 12(43): 157-166 | Back to browse issues page


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Fathipour Y, Jafari A. Biology of Nabis capsiformis (Het., Nabidae) Preying upon i> Creontiades pallidus (Het., Miridae) in Laboratory Conditions. JCPP. 2008; 12 (43) :157-166
URL: http://jcpp.iut.ac.ir/article-1-829-en.html

Abstract:   (7398 Views)
Biological characteristics of Creontiades pallidus Ramber (an important pest of cotton in Khorasan province, Northeastern Iran) and its predator Nabis capsiformis Germar were determined and compared. The experiments were conducted in the laboratory conditions at 26±1؛C, 65±5% RH and a photoperiod of 16:8 (L:D) h. Statistical analysis of data showed that different developmental periods except the second instar nymph, oviposition, pre- and post-oviposition periods, adult longevity and life span in C. pallidus were significantly shorter than N. capsiformis. The egg incubation period, total nymphal period and total developmental period were 5.99±0.038, 10.83±0.11 and 16.86±0.11 days, respectively in C. pallidus and 7.23±0.50, 14.05±0.37 and 21.35±0.36 days, respectively in N. capsiformis. The oviposition period, female longevity and life span were 9.90±1.20, 14.45±1.30 and 28.76±1.10 days in C. pallidus and 18.40±2.40, 27.60±2.50 and 44.90±2.60 days in N. capsiformis, respectively. Each female of C. pallidus and N. capsiformis laid an average of 65.9±3.59 and 119.6±8.83 eggs, respectively in ovipositional period, which showed significantly high oviposition rate of the predator. In C. pallidus, 70.71% of eggs hatched and 23.93% of immatures developed to adult stage. The hatched eggs and developed immatures in N. capsiformis were 77.78% and 29.63%, respectively.
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Type of Study: Research | Subject: General

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