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SAMPLING POPULATIONS OF PINE LEAF CHERMID PINEUS PINIFOLIAE (HOMOPTERA: CHERMIDAE): II. ADULT GALLICOLAE ON THE SECONDARY HOST1
Published online by Cambridge University Press: 31 May 2012
Abstract
Procedures for absolute population sampling of the gallicola migrans stage of the pine leaf chermid on its secondary host are described. This involves determining the mean numbers of gallicolae per fascicle on one twig from each of 29–240 pines per stand and estimating the numbers of fascicles in the stand from the distribution of stem diameters. Patterns and distributions of the gallicolae within trees and stands are discussed with comments on their biological significance.
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- Copyright © Entomological Society of Canada 1973
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