Aspen Bibliography

Fructification of Chondrostereum purpureum on hardwoods inoculated for biological control

R.E. Wall

Document Type

Article

Journal/Book Title/Conference

Canadian Journal of Plant Pathology

Volume

19

Issue

2

First Page

181

Last Page

184

Publication Date

1997

Abstract

Cut stump and stem frill treatments of hardwoods with Chondrostereum purpureum in New Brunswick and British Columbia were examined periodically for several years after inoculation for fructifications of the fungus. In New Brunswick, fructifica- tions occurred on all inoculated hardwood species {Acer rubrum, A. pensylvanicum, A. saccharum, Betuia alleghaniensis, B. papyrifera, Fagus grandfolia, Populus tremuloides, and Prunus pensylvanica) within a 2-year period after inoculation. In British Columbia, standing red alder (Alnus rubra) trees inoculated through bark frills bore fructifications on dead portions of the stems

of dying and recently killed trees, but few basidiocarps were found on trees that had been dead longer than 2 years. On red alder stumps treated with C. purpureum in autumn, fructifications appeared during the winter rain period of the following year but not thereafter. Basidiocarps covered as much as 100% of the stump surface area but overall coverage did not exceed 5% of all inoc- ulated stumps in the last-mentioned set of treatments. Theoretical risk of infection of fruit trees or other nontarget species throughtheuseofC.purpureumasabioherbicidecouldbepredictedbytakingaccounttheexpecteddurationoffructification, in conjunction with other factors.

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