Evolution and the microbial control of insects
Article first published online: 4 JUN 2012
© 2012 The Authors. Evolutionary Applications published by Blackwell Publishing Ltd.
This is an open access article under the terms of the Creative Commons Attribution-NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.
Special Issue: Evolution and Biological Control
Volume 5, Issue 5, pages 455–469, July 2012
How to Cite
Cory, J. S. and Franklin, M. T. (2012), Evolution and the microbial control of insects. Evolutionary Applications, 5: 455–469. doi: 10.1111/j.1752-4571.2012.00269.x
- Issue published online: 10 JUL 2012
- Article first published online: 4 JUN 2012
- Manuscript Accepted: 24 APR 2012
- Manuscript Received: 16 APR 2012
- Bacillus thuringiensis ;
- genotype × environment interaction;
- local adaptation;
- mixed infection;
Insect pathogens can be utilized in a variety of pest management approaches, from inundative release to augmentation and classical biological control, and microevolution and the consideration of evolutionary principles can potentially influence the success of all these strategies. Considerable diversity exists in natural entomopathogen populations and this diversity can be either beneficial or detrimental for pest suppression, depending on the pathogen and its mode of competition, and this should be considered in the selection of isolates for biological control. Target hosts can exhibit considerable variation in their susceptibility to entomopathogens, and cases of field-evolved resistance have been documented for Bacillus thuringiensis and baculoviruses. Strong selection, limited pathogen diversity, reduced gene flow, and host plant chemistry are linked to cases of resistance and should be considered when developing resistance management strategies. Pre- and post-release monitoring of microbial control programs have received little attention; however, to date there have been no reports of host-range evolution or long-term negative effects on nontarget hosts. Comparative analyses of pathogen population structure, virulence, and host resistance over time are required to elucidate the evolutionary dynamics of microbial control systems.