Which pest was controlled by the introduction of a parasitic wasp in the 1970s and is considered under control in forestry?

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Prepare for the Oregon Forestry Pesticide Applicator Exam with flashcards and multiple choice questions. Each question includes hints and explanations to help you succeed. Get ready for your test!

Multiple Choice

Which pest was controlled by the introduction of a parasitic wasp in the 1970s and is considered under control in forestry?

Explanation:
Biological control uses natural enemies, like parasitic wasps, to suppress pest populations and reduce reliance on chemicals in forests. For the larch casebearer, a parasitic wasp was released in the 1970s to attack the larvae inside their protective cases. The wasp successfully limited the pest outbreaks, and the larch casebearer is now considered under control in forestry. This kind of targeted, species-specific biocontrol can create a self-sustaining check on a pest, leading to long-term suppression without ongoing chemical control.

Biological control uses natural enemies, like parasitic wasps, to suppress pest populations and reduce reliance on chemicals in forests. For the larch casebearer, a parasitic wasp was released in the 1970s to attack the larvae inside their protective cases. The wasp successfully limited the pest outbreaks, and the larch casebearer is now considered under control in forestry. This kind of targeted, species-specific biocontrol can create a self-sustaining check on a pest, leading to long-term suppression without ongoing chemical control.

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