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Insect Pests-C281

  • Commercial Vegetable Production in Wisconsin—2023
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    Commercial Vegetable Production in Wisconsin—2023

    Author(s) B. Z. Bradford, J. B. Colquhoun, S. A. Chapman, A. J. Gevens, R. L. Groves, D. J. Heider, G. R. W. Nice, M. D. Ruark, Y. Wang. This guide...

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  • Biological Control of Insects and Other Pests of Greenhouse Crops
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    Biological Control of Insects and Other Pests of Greenhouse Crops

    Author(s) Susan E. Rice Mahr, Raymond A. Cloyd, Daniel L. Mahr, Clifford S. Sadof. Greenhouse managers wage ongoing battles with insect pests. Thi...

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  • European Corn Borer
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    European Corn Borer

    Author(s) Eileen M. Cullen, John Wedberg. This fact sheet details the life cycle of the European corn borer, or Ostrinia nubilalis, including the ...

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  • Cucumber Beetles
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    Cucumber Beetles

    Author(s) K. A. Delahaut. Spotted and striped cucumber beetles damage vine crops like cucumbers, squash, watermelons, muskmelons, and pumpkins. Th...

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  • Corn Rootworms
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    Corn Rootworms

    Author(s) J. L. Wedberg. This fact sheet details the life cycle of the northern, western, and southern corn rootworms, the damage they can cause,...

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  • Corn Earworm
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    Corn Earworm

    Author(s) K. A. Delahaut, E. M. Cullen, J. L. Wedberg. The corn earworm Helicoverpa zea can cause serious economic damage to fresh market and pro...

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  • Colorado Potato Beetle
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    Colorado Potato Beetle

    Author(s) K. A. Delahaut This publication is packed with practical information for organic and conventional growers who encounter Colorado potato ...

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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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  • 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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  • Aster Leafhopper
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    Aster Leafhopper

    Author(s) K. A. Delahaut Aster leafhoppers feed on vegetables, field crops, flowers and weeds, spreading aster yellows disease. Learn when to scou...

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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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  • Japanese Beetles
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    Japanese Beetles

    Author(s) R. Chris Williamson. This fact sheet on the Japanese beetle, considered the single most important turf grass pest in the United States ...

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  • Insect Pest Management for Greenhouses
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    Insect Pest Management for Greenhouses

    Author(s) R. Chris Williamson, Samuel Soper, P. J. Liesch. This handy chart lists pesticides that are most effective against common greenhouse pes...

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  • Hornworms
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    Hornworms

    Author(s) K. A. Delahaut. Tomato and tobacco hornworms feed on tomatoes late in the season. This fact sheet details the insects' life cycle, the d...

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  • Potato Leafhopper
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    Potato Leafhopper

    Author(s) K. A. Delahaut. In Wisconsin, the potato leafhopper (Empoasca fabae) is a serious annual pest of snap beans and potatoes. Damage caused ...

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  • Onion Thrips
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    Onion Thrips

    Author(s) K. A. Delahaut. Onion thrips (Thrips tabaci) are an important annual pest of onion. They may attack nearly all garden crops, but serious...

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  • Onion Maggot
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    Onion Maggot

    Author(s) K. A. Delahaut. Onion maggots (Hylemya antiqua) are tiny maggots that feed below ground on onion bulbs, making tunnels in the bulbs and ...

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  • Wireworms
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    Wireworms

    Author(s) K. A. Delahaut. Wireworms can damage a host of plants in home and commercial gardens alike, including corn and small grains, vegetables ...

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  • Vegetable Leafminers
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    Vegetable Leafminers

    Author(s) K. A. Delahaut.  Leafminers are the larval stage of flies, moths, sawflies, and beetles that often cause damage to leafy edible plants s...

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  • Vegetable Aphids
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    Vegetable Aphids

    Author(s) K. A. Delahaut.  This fact sheet covers vegetable aphids, including the bean, pea, green peach, melon, potato, cabbage, and corn leaf ap...

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  • Squash Vine Borer
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    Squash Vine Borer

    Author(s) K. A. Delahaut.  The squash vine borer is an annual pest of pumpkins and squash. Winter squash are especially vulnerable. This fact shee...

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  • Squash Bug
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    Squash Bug

    Author(s) K. A. Delahaut. Squash bugs are a problem in Wisconsin, feeding on most vine crops such as pumpkins and squash in commercial and home ga...

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  • Seed Corn Maggot
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    Seed Corn Maggot

    Author(s) Karen Delahaut. The seed corn maggot (Delia platuraorganic) is a perennial pest that attacks the seeds and seedlings of a wide variety o...

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