Resistance ofPinus ponderosatoEndocronartium harknessiiin Pennsylvania
- 31 December 1985
- journal article
- research article
- Published by Scientific Societies in Plant Disease
- Vol. 70 (4) , 317-320
- https://doi.org/10.1094/pd-70-317
Abstract
Incidence and severity of infection of Endocronartium harknessii on Pinus ponderosa from 49 seed sources were measured in central Pennsylvania. Levels of infection varied more within than among seed sources. The greatest variation in resistance was among seed sources from the northern portions of the range of P. ponderosa in Montana, Wyoming, South Dakota, and Nebraska. Some seed sources recommended for reforestation of strip mine spoil banks contained high percentages of susceptible individuals and should not be used where this pathogen occurs.This publication has 0 references indexed in Scilit: