The utilization of living natural enemies to suppress pest densities to sub-economic thresholds is termed____________________?
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Answer: A. Biological control
Explanation
Biological control involves utilizing living natural enemies to suppress pest populations sustainably. Predators, parasitoids, and pathogens act as natural control agents against agricultural pests. This practice maintains pest densities below economic injury levels without heavy chemicals. Classical biological control imports specialized natural enemies from a pest's native region. Conservation biological control preserves existing predator populations through habitat management. Natural enemy populations fluctuate in response to changing prey densities in ecosystems.
Biological control reduces chemical pesticide use, protecting environmental quality and pollinators. Greenhouse operations successfully employ predatory mites and parasitic wasps for pest control. Integrated pest management programs rely heavily on effective biological control components. Cultural control uses farming practices like crop rotation rather than living natural enemies. Physical control involves mechanical barriers or temperature manipulation to manage pests. Natural control refers to unassisted environmental mortality factors operating without human intervention.
- Subject
- Agriculture
- Category
- Agriculture
- Topic
- —
- Difficulty
- medium
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