Effect of temperature on development, mortality, fecundity, and reproduction of Aphis rumicisL. (Homoptera: Aphididae) on broadleaf dock (Rumex obtusifolius) and Swiss chard (Beta vulgaris vulgaris var. cida) |
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| Authors: | E Bayhan S Ölmez-Bayhan M R Ulusoy H Chi |
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| Institution: | (1) Plant Protection Division, Agriculture Faculty, Trakya University, Tekirdağ, Turkey;(2) Plant Protection Division, Agriculture Faculty, Dicle University, Diyarbakır, Turkey;(3) Plant Protection Division, Agriculture Faculty, Cukurova University, Adana, Turkey;(4) Department of Entomology, Chung-Hsing University, Taichung, Taiwan |
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| Abstract: | Temperature effects on developmental period, survival rate, and reproductive capacity of Aphis rumicis L. were studied on Broadleaf dock and Swiss chard at four constant temperatures (17.5°C, 20°C, 22.5°C, and 25°C). The developmental
time of immature stages ranged from 10.9 days at 17.5°C to 6.5 days at 25°C on Broadleaf dock, and 11.8 days at 17.5°C to
6.5 days at 25°C on Swiss chard. The total percentage of survivorship of immature stages varied from 54.2% and 67.6% 17.5°C–25°C
on Broadleaf dock, and 49.7% and 62.4% at 17.5°C–25°C on Swiss chard. The largest r
m value occurred with 0.2845 at 25°C on Broadleaf dock and with 0.2785 at 25°C on Swiss chard. The results obtained on this
study indicated that Swiss chard was a less favorable host of the A. rumicis than Broadleaf dock. The optimal temperature for A. rumicis growth, developmental time, and reproduction was 22.5°C–25°C. |
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| Keywords: | Aphis rumicis Developmental time Reproduction Host plants Life table Turkey |
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