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Principles. Crops. Pests. Control methods Library. Links.
key visual: online information service for Non-chemical Pest Management in the Tropics

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Virginia Cooperative Extension. Using pitfall traps to monitor insect activity. http:/ / pubs.ext.vt.edu/ 444/ 444-416/ 444-416.html 
Virginia State University. A guide to successful pruning: Pruning basics and tools. http:/ / www.ext.vt.edu/ pubs/ nursery/ 430-455/ 430-455.html 

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