Canadian Forest Service Publications
Stand protection issues in thinning. 1998. Safranyik, L.; Morrison, D.J. Pages 84-91 in C.R. Bamsey, Editor. Stand Density Management: Planning and Implementation, Proceedings: Conference. November 6-7, 1997, Edmonton, Alberta, Canada. Clear Lake Ltd., Edmonton, AB.
Issued by: Pacific Forestry Centre
Catalog ID: 5069
Availability: Order paper copy (free)
Effects of stand manipulation on insect and disease activity were reviewed with emphasis on problems in western Canada. Some insects and diseases are positively affected by changes in stand environment resulting from thinning and spacing operations, specifically changes in stand climate, tree/stand vigor, inter-tree distance, and the distribution and abundance of food base. Some pests (e.g., the pitch moths and terminal weevils) are relatively more damaging in young stands, other pests (e.g., bark beetles) are mainly of concern in pole-size and older stands, and still others (e.g., dwarf mistletoes and root diseases) are of concern at all stand ages. Based on the interaction of specific pests with their hosts and the host environment, recommendations are given to reduce pest impacts resulting from manipulations of stand density.