Canadian Forest Service Publications
Use of entomopathogens against forest pests. 2017. Hajek, A.E.; van Frankenhuyzen, K. (Chapter 21) Pages 313-330 in Microbial Control of Insect and Mite Pests: From Theory to Practice. Lawrence A. Lacey, Editor. Academic Press, London, United Kingdom.
Issued by: Great Lakes Forestry Centre
Catalog ID: 37382
Available from the Journal's Web site. †
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Plain Language Summary
Entomopathogens have been used extensively to control insect pests in forests with successful use of both augmentation and classical biological control strategies to apply or introduce bacteria, baculoviruses, fungi, and nematodes. In particular, Bacillus thuringiensis var. kurstaki has been used to effectively control numerous defoliators in forests. Baculoviruses provide excellent examples of successful classical biological control and augmentative introductions, also for the control of defoliators. The baculovirus infecting gypsy moth, Lymantria dispar, causes naturally occurring epizootics in defoliating host populations but in North America has largely been replaced since the introduction of the fungus Entomophaga maimaiga. Finally, the nematode Deladenus siricidicola has been used to control the invasive wood borer Sirex noctilio. With increasing numbers of invasive species, entomopathogens are also used as part of eradication programs or programs to slow invasive spread. All examples provided in this chapter outline specifically how achievements in the use of entomopathogens for pest control are contributing to the sustainable protection of forests around the world. Future challenges lie in store, but forest ecosystems, usually biodiverse areas that have relatively high economic or aesthetic injury levels (ie, some level of damage from pests can be tolerated), are excellent systems for effective control using entomopathogens.