Canadian Forest Service Publications

Development of Chondrostereum purpureum as a biocontrol agent for red alder (Alnus rubra) in utility rights-of-way (Abstract) 1996. Shamoun, S.F.; Ramsfield, T.D.; Hintz, W.E. Page 22 in Healthy Plants, Healthy Planet APS/MSA Joint Annual Meeting, July 27-31, 1996, Indianapolis, Indiana. American Phytopathological Society, Indianapolis, IN.

Year: 1996

Available from: Pacific Forestry Centre

Catalog ID: 4601

Language: English

CFS Availability: Order paper copy (free)

Abstract

A study has been initiated to evaluate the bioherbicidal efficacy of the biocontrol agent Chondrostereum purpureum for control of red alder in utility rights-of-way near Duncan, B.C. An experiment was laid out in a randomized complete block design, with 5 blocks, 6 treatments and 20 observations (red alder trees) per treatment within each block. Trees were cut 15-20 cm above ground and assigned one of the following treatments: 1) formulated C. purpureum (PFC 2139); 2) formulated C. purpureum (PFC 2090); 3) Glyphosate (12%); 4) Carbopaste; 5) formulation control; and 6) slash brushing control. Ten months after treatment, measurements of number of live resprouts, maximum resprout height, and dieback of the treated trees were recorded and subjected to analysis of variance. The mean resprout growth for both biological and chemical formulations was significantly different from the slash control but not from the formulation control. Maximum shoot height exhibited a significant difference between the slash control and each of the chemical and biological formulations. Chemical formulation and C. purpureum (PFC 2090) were different from the formulation control. Chemical treatments significantly differed from the formulation control with respect to dieback.

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