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1 March 2013 Temperature-Dependent Development, Survival, Longevity, and Fecundity of Propylea quatuordecimpunctata (Coleoptera: Coccinellidae)
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The effect of temperature on the development, survival, longevity, and fecundity of the 14-spotted ladybird beetle, Propylea quatuordecimpunctata L. (Coleoptera: Coccinellidae) reared on bean aphid, Aphis fabae Scopoli (Hemiptera: Aphididae) was determined at six constant temperatures (17, 20, 25, 30, 32.5, and 35 ± 1°C) in the laboratory. Results showed a temperature—dependent development of the coccinellid. An appropriate linear model indicated that 218.0 degree days above a threshold of 10.2°C were needed to complete immature development from egg to adult emergence. Data were fitted to the nonlinear Briere model, which for total immature period estimated the upper developmental threshold at 36.0°C, the lower threshold at 12.2°C and the temperature for maximum developmental rate at 30.3°C. Survival of immature stages varied significantly across temperatures with the lowest survival of just 14% occurring at 32.5°C and the highest (96%) at 25°C. In addition temperature showed a profound effect on female longevity over this viable range of temperatures, as it decreased from 123.06 d at 17°C to 33.53 d at 30°C. The highest fecundity (724.6 eggs/female) was recorded at 25°C. These results might be useful tools for the prediction of P. quatuordecimpunctata phenology and the interaction with its prey.

© 2013 Entomological Society of America
Nikos E. Papanikolaou, Panagiotis G. Milonas, Dimitris C. Kontodimas, Nikos Demiris, and Yiannis G. Matsinos "Temperature-Dependent Development, Survival, Longevity, and Fecundity of Propylea quatuordecimpunctata (Coleoptera: Coccinellidae)," Annals of the Entomological Society of America 106(2), 228-234, (1 March 2013).
Received: 19 August 2012; Accepted: 1 November 2012; Published: 1 March 2013

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