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Diseases- Weeds- Insects & Other Problems-C102

  • Cole Crops Disorder: Clubroot
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    Cole Crops Disorder: Clubroot

    Author(s) Karen Delahaut, Walt Stevenson. Clubroot is an old and serious disease of cole crops, including Brussels sprouts, cabbage, Chinese cabba...

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  • Cole Crops Disorder: Blackleg
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    Cole Crops Disorder: Blackleg

    Author(s) Karen Delahaut, Walt Stevenson. Once a very destructive disease, blackleg of cole crops has become less important with the introduction ...

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  • Cole Crops Disorder: Black Rot
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    Cole Crops Disorder: Black Rot

    Author(s) Karen Delahaut, Walt Stevenson. Black rot is one of the most serious diseases of cole crops. Learn about black rot's life cycle, how it ...

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  • Caterpillar Pests of Cole Crops
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    Caterpillar Pests of Cole Crops

    Author(s) Karen A. Delahaut. This fact sheet covers the imported cabbageworm, the cabbage looper, and the diamondback moth. Scouting tips and effe...

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  • Carrot Diseases: Alternaria and Cercospora Leaf Blights
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    Carrot Diseases: Alternaria and Cercospora Leaf Blights

    Author(s) Karen Delahaut, Walt Stevenson. Alternaria and Cercospora leaf blights are common fungal diseases of carrot leaves and petioles. Learn a...

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  • Cabbage Maggot
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    Cabbage Maggot

    Author(s) K. A. Delahaut. Cabbage maggots are insects that damage cole crops by feeding on the plant's roots and lower stems. Wounds produced by t...

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  • Black Cutworm
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    Black Cutworm

    Author(s) Karen Delahaut. Black cutworm larvae are active nighttime feeders, clipping many seedlings at or below the soil line. They prefer beets,...

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  • Beet Disorder: Cercospora Leaf Spot
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    Beet Disorder: Cercospora Leaf Spot

    Author(s) Karen Delahaut, Walt Stevenson. Cercospora leaf spot is the most prevalent and devastating disease of the table beet in Wisconsin. This ...

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  • Assessing the Decay Potential of Potato Crops
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    Assessing the Decay Potential of Potato Crops

    Author(s) Zahi K. Atallah, Walter R. Stevenson. Potato tubers may become infected in the field but show no symptoms for days, or even weeks, after...

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  • Asparagus Beetle
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    Asparagus Beetle

    Author(s) K. A. Delahaut. The common and spotted asparagus beetle are common pests in Wisconsin. This fact sheet details the insects' life cycle, ...

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  • Analysis of the Snap Bean Root Rot Potential of Wisconsin Fields
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    Analysis of the Snap Bean Root Rot Potential of Wisconsin Fields

    Author(s) K. M. Kobriger, D. J. Hagedorn, W. R. Stevenson.  Bean root rot is one of the most destructive diseases of commercially grown snap beans...

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