Incidence ofColletotrichumspp. on Soybeans and Weeds in Illinois and Pathogenicity ofColletotrichum truncatum
- 1 January 1986
- journal article
- research article
- Published by Scientific Societies in Plant Disease
- Vol. 70 (8) , 780-782
- https://doi.org/10.1094/pd-70-780
Abstract
Colletotrichum destructivum, C. truncatum, and Glomerella glycines occurred on 22% of stubble samples collected in 1984 and on 100% of samples from all but one of 50 fields of soybean (Glycine max) planted in 1983 in three Illinois counties. Colletotrichum spp. were recovered from 50% of soybean leaflets and from 48% of either stem pieces or leaf samples of 17 weeds from 18 fields. C. truncatum was recovered from 14 genera of weed hosts. Single-conidium isolates of C. truncatum from 11 weeds and soybeans varied significantly (P = 0.05) in pathogenicity on two soybean cultivars; one soybean isolate and four weed isolates were pathogenic on four of the weed hosts.Keywords
This publication has 1 reference indexed in Scilit:
- Dicotyledonous Weeds as a Source ofFusarium oxysporumPathogenic on SoybeanPlant Disease, 1984