Purdue Extension

A Soybean Postemergence Herbicide Failed to Perform

A Soybean Postemergence Herbicide Failed to Perform Product code: PPP-147

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$5.50/ Each

PPP-147

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Description

A number of questions arise when considering whether to make a second herbicide treatment in soybeans, including:

- Do I spray as soon as I notice that too many weeds are still green?

- Do I let injured weeds regrow a little to get new leaf tissue?

- Which herbicide should I use and why?

This publication addresses these questions by providing guidelines about timing second applications in soybean and about how to select herbicide options that work best based on university research and the experience of agronomists in the crop protection industry. Specifically, the recommendations we provide focus primarily on controlling waterhemp and Palmer amaranth, because the herbicide programs that control them are complex and both species have resistance-related challenges in soybean.

Produced

8/18/2022

Author

Fred Whitford

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