Determination of Bean Root Rot Potential in Vegetable Production Fields of Wisconsin's Central Sands

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Abstract
A greenhouse bioassay was developed to determine the bean root rot [caused by fungal pathogens] potential of central Wisconsin vegetable-production fields. Greenhouse and field disease severities were highly and positively correlated during 3 yr of testing in 83 commercial snap bean fields. As field and greenhouse disease severity indices increased, there was a corresponding trend toward decreased yields. This bioassay can be used as part of an integrated program for bean root rot control by estimating the risk factors of fields.

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