Rajabi Mazhar, A., Sadeghi, E. (2014). Some life table parameters of the aphid, Brachycaudus cardui L. on Artichoke, Cynara scolymus L. in laboratory conditions. , 12(2), 153-158. doi: 10.22092/ijfrpr.2015.13256
Ali reza Rajabi Mazhar; Ebrahim Sadeghi. "Some life table parameters of the aphid, Brachycaudus cardui L. on Artichoke, Cynara scolymus L. in laboratory conditions". , 12, 2, 2014, 153-158. doi: 10.22092/ijfrpr.2015.13256
Rajabi Mazhar, A., Sadeghi, E. (2014). 'Some life table parameters of the aphid, Brachycaudus cardui L. on Artichoke, Cynara scolymus L. in laboratory conditions', , 12(2), pp. 153-158. doi: 10.22092/ijfrpr.2015.13256
Rajabi Mazhar, A., Sadeghi, E. Some life table parameters of the aphid, Brachycaudus cardui L. on Artichoke, Cynara scolymus L. in laboratory conditions. , 2014; 12(2): 153-158. doi: 10.22092/ijfrpr.2015.13256

Some life table parameters of the aphid, Brachycaudus cardui L. on Artichoke, Cynara scolymus L. in laboratory conditions

تحقیقات حمایت و حفاظت جنگلها و مراتع ایران
Article 8, Volume 12, Issue 2, June 2015, Pages 153-158    PDF (189.5 K)
Document Type: Short paper
DOI: 10.22092/ijfrpr.2015.13256
Authors
Ali reza Rajabi Mazhar* ; Ebrahim Sadeghi
Abstract
Artichoke, Cynara scolymus is an important medicinal plant and Brachycaudus cardui L. is one of its key pests in early season. Biology and life table parameters of this aphid was investigated in laboratory conditions of  22 ± 2°C, 60 ± 5% RH, and a photoperiod of LD 14:10. The experiment was carried out by rearing 20 aphid nymphs in leaf cages and their mortality and reproduction rate was recorded daily. The results indicated mean reproduction period and mean generation time as 12.75 ± 0.26 and 18.92 days, respectively. Mean longevity of the aphid was 33.70 ± 1.01 days. There was not any mortality in nymphal development period. Mortality rate was very low in young adult stage as well. Maximum death rate (0.67) occurred in 32-38 days of age. Life expectancy of aphid was estimated at 33.03 days in 1st instar nymph stage and decreased gradually in a constant rate. The results of this study revealed high longevity and slow mortality trend in aphid population.
Keywords
life table; aphid; medicinal plant; Cynara scolymus; Brachycaudus cardui
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