Yellow Sugarcane Aphids in a CO2-Enriched and Warmer World
Auad, A.M., Fonseca, M.G., Resende, T.T. and Maddalena, I.S.CP. 2012. Effect of climate change on longevity and reproduction of Sipha flava (Hemiptera: Aphididae). Florida Entomologist 95: 433-444.
Very briefly, in the present study the four Brazilian researchers set out to investigate the "effects of elevated CO2 alone and in combination with elevated temperature on the interactions of S. flava and one of its hosts," choosing, not surprisingly, P. purpureum as the guinea pig of their study. So what did the results reveal?
Auad et al. discovered that "the combination of elevated CO2 and high temperature significantly decreased the duration of nymphal stadia," as well as "the longevity and reproductive success of S. flava," such that "adults produced fewer nymphs in an environment with elevated CO2 and high temperature than an environment with elevated CO2 and lower fluctuating temperatures."
The four researchers conclude by stating that based on their observations, "S. flava populations will significantly decrease under future climatic conditions when both the concentration of atmospheric CO2 and temperature are projected to increase."
Breen, J.P. and Teets, G.L. 1986. Relationships of the yellow sugarcane aphid (Homoptera: Aphididae) density to sorghum damage. Journal of Economic Entomology 79: 1106-1110.
Webster, J.A. 1990. Yellow sugarcane aphid (Homoptera: Aphididae): detection and mechanisms of resistance among Ethiopian sorghum lines. Journal of Economic Entomology 83: 1053-1057.