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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

Robert P. Ford  and
John B. Dimond
Robert P. Ford
Affiliation:
Department of Entomology, University of Maine, Orono
John B. Dimond
Affiliation:
Department of Entomology, University of Maine, Orono
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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.

Type
Articles
Information
The Canadian Entomologist , Volume 105 , Issue 10 , October 1973 , pp. 1265 - 1274
Copyright
Copyright © Entomological Society of Canada 1973

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