Integrated Crop Management News
 

Document Type

Article

Publication Date

7-9-2007

Abstract

A fairly common occurrence in late June and July is the appearance of distorted leaves on soybean plants. The most common cause of this response is exposure to a growth regulator herbicide (2,4-D; dicamba; etc.). Dicamba is the most commonly used growth regulator herbicide in Iowa crop production, and is present in numerous products (Banvel®, Clarity®, Marksman®, Distinct®, Status®, and many others). Soybeans may be exposed to dicamba in three ways: spray particle drift, vapor drift (volatilization), and sprayer contamination. Injury from spray drift or sprayer contamination usually is fairly straightforward in diagnosing, but questions often arise regarding volatilization.

Copyright Owner

Iowa State University

Language

en

File Format

application/pdf

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