Conversion table for spruce budworm sampling units
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- Simmons, Gary A
Department of Entomology, University of Maine at Orono
Several sampling methods for spruce budworm population and damage survey are currently 1n use in the United States and Canada. In Canada the sampling unit nay be either an l8 inch branch tip, a whole branch standardized by expressing density in terns of individuals per current shoot, or density per square foot of foliage (Miller, et al 1972)
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