MSU Extension Grapes

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  Michigan Grape Facts: Managing Grapevine Downy Mildew

  Downy mildew can cause serious yield loss from fruit infections and can damage overall vine health but there are a variety of tools that can be used to protect grapes.

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  Michigan Grape Facts: Managing Botrytis Bunch Rot

  Gray mold or bunch rot can cause serious yield loss but there are a variety of tools that can be used to protect grapes.

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  Michigan Grape Facts: Managing Grapevine Leafroll Disease

  Grapevine leafroll disease is a major viticultural problem that can be found in every wine, juice and table grape-growing region in the world. Unfortunately, Michigan is no exception.

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  Michigan Grape Facts: Managing Grapevine Crown Gall

  There are several factors to consider when managing bacterial induced crown gall in grapes.