Campus Units

Plant Pathology and Microbiology

Document Type

Article

Publication Version

Published Version

Publication Date

8-14-2014

Journal or Book Title

Plant Health Progress

Volume

15

Issue

3

First Page

118

Last Page

121

DOI

10.1094/PHP-RS-14-0013

Abstract

Anthracnose stem blight, caused by Colletotrichum truncatum, is responsible for soybean (Glycine max) yield losses in subtropical and tropical growing regions. There are inadequate data regarding the effect of anthracnose stem blight on yield in Iowa, and it is unknown if fungicide application can manage this disease. Field studies were conducted from 2008 to 2010 to determine the effect of fungicide application timing on late-season development of this disease. We also investigated the effect of anthracnose stem blight on yield and specific yield components. Fungicides reduced late-season symptom development when compared to the untreated control; however, there were no differences in yield and yield components. While foliar fungicides can reduce late-season disease development, anthracnose stem blight typically should not affect crop management decisions involving use of foliar fungicides on soybean in Iowa.

Comments

This article is published as Bestor, N. R.C., Robertson, A. E., and Mueller, D. S. 2014. Effect of foliar fungicides on late-season anthracnose stem blight on soybean. Plant Health Progress 15: 118-121. doi: 10.1094/PHP-RS-14-0013. Posted with permission.

Copyright Owner

The American Phytopathological Society

Language

en

File Format

application/pdf

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