Weeds (Insects and Mites): Biological Control

Authored by: Peter Harris

Encyclopedia of Environmental Management

Print publication date:  December  2012
Online publication date:  December  2012

Print ISBN: 9781439829271
eBook ISBN: 9781351235860
Adobe ISBN:

10.1081/E-EEM-100000511

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Abstract

Insects and other natural enemies are primarily used for controlling weeds by the classical or inoculative approach. This involves establishing natural enemies from other places for continuing suppression of the weed. It is done by government in the public interest, as it commonly takes 20 years to achieve control and once established the enemy finds the weed on its own. However, there are public concerns about safety, which change over time. No crops have suffered economic loss, few native plants have been attacked, and none have been exterminated but the record is not enough. The concerns must be addressed directly and this has driven the evolution of weed biocontrol.

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