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1 June 2010 Effect of Temperature on the Population Growth of Rhynchophorus ferrugineus (Coleoptera: Curculionidae) on Sugarcane
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Abstract

The effect of temperature on the developmental time, survival, and reproduction of Rhynchophorus ferrugineus (Olivier) reared on sugarcane was studied at seven constant temperatures (16, 20, 24, 28, 32, 36, and 40°C). The developmental threshold temperatures and effective accumulated temperatures for the whole generation were 17.41°C and 1,590.72 DD, respectively. One generation had the highest survival rate (26.67%) at 28°C. The egg failed to survive at 16 and 40°C. The population trend index (I = 38.22) and net reproductive rate (Ro = 38.3) were highest at 28°C. The net reproductive rate (Ro = 3.36), intrinsic rate of increase (rm = 0.0028), and finite capacity of increase (λ = 1.0028) were lowest at 20°C. The mean generation time (To = 85.82) was shortest at 36°C. The population double time (PDT = 27.08) was shortest at 32°C. Based on these studies, we concluded that the temperatures from 28 to 32°C were the most suitable temperatures for the development of R. ferrugineus.

© 2010 Entomological Society of America
Lei Li, Wei-Quan Qin, Zi-Long Ma, Wei Yan, Shan-Chun Huang, and Zheng-Qiang Peng "Effect of Temperature on the Population Growth of Rhynchophorus ferrugineus (Coleoptera: Curculionidae) on Sugarcane," Environmental Entomology 39(3), 999-1003, (1 June 2010). https://doi.org/10.1603/EN09316
Received: 22 October 2009; Accepted: 1 February 2010; Published: 1 June 2010
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