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Integrating Weed Biological Control Agents into a Pest-Management Program

Published online by Cambridge University Press:  12 June 2017

Lloyd A. Andres
Lloyd A. Andres*
Affiliation:
Supvry. Res. Entomol., Biol. Control of Weeds Lab., Agric. Res., Sci. Ed. Admin., U.S. Dep. Agric., 1050 San Pablo Avenue, Albany, CA 94706
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Extract

Little effort has been directed toward integrating biological control; that is, the use of living natural enemies to control weeds, with more conventional weed control practices. The usual focus of biological control has been on the introduction of weed insects and pathogens from foreign areas to control naturalized range, pasture, and/or aquatic weeds, principally single species that had become dominant over a plant community. The released natural enemies were allowed to reach their own balance with the target weed without added assistance. As economic and environmental perspectives change along with our knowledge and technological capability, however, it becomes worthwhile to review periodically if and how biological control might be integrated with other farming practices. Because my biological control experience has centered on the use of weed-feeding insects, this discussion will focus on methods of enhancing and integrating insect impact on weeds with other weed-control activities.

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References

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