Mealybugs

Mealybugs are slow-moving, small, oval insects covered in white cottony wax. This factsheet describes the identification, biology and management of this insect pest.

Whiteflies

Whiteflies are not true flies, but belong in the same order as scales, aphids and mealybuts. Several species can infest greenhouses. Learn how to identify and manage this pest in this factsheet.

Wireworms

Authors: David Lowenstein and Russell Groves, UW-Madison EntomologyLast Revised: 05/22/2020X-number: XHT1045 Wireworms are the larvae of several species of click beetles (Family Elateridae).  These beetles flip into the air with an audible click when turned on their backs.  Wireworms feed primarily on grasses (including grass crops such as corn) but have a broad host range that includes vegetables […]

Field Ants

Field ants are common in Wisconsin, and noted for producing large mounds that ruin home lawns and interfere with landscape plantings. This factsheet discusses identification and control.

Purple Loosestrife

Purple loosestrife (Lythrum salicaria) is a fast-spreading, tall Eurasian plant that grows primarily in wetlands and ditches, but can invade home gardens. This factsheet covers identification and control of this attractive, yet invasive, plant.

Extending the Garden Season

Cold frames and hot beds, hoop houses, cloches, and floating row covers allow gardeners to grow plants earlier in spring and later in fall. Get ideas that will work for you in this factsheet.

Rain Barrels

What is a rain barrel?  A rain barrel can be any large container designed to collect rain water.  Typically, rain barrels are placed at the bottom of downspouts in order to collect rain as it runs off of a roof.  For every inch of rain that falls on 1,000 square feet of roof, about 600 […]

Cicada Killer Wasps

Cicada killer wasps are common in the southern part of Wisconsin. These non-aggressive wasps feed on cicadas. Learn more in this factsheet.

Four-Lined Plant Bug

Four-linied plant bug attacks a wide variety of herbaceous and woody plants. Learn to identify and manage this pest in this factsheet.

Black Vine Weevil

Both the adult and larva of the black vine weevil feed on over 100 species of woody and herbaceous plant roots. Learn to identify and manage black vine weevil in this factsheet.

Tobacco Rattle

Tobacco rattle is a common and potentially serious viral disease that affects a variety of herbaceous ornamentals as well as vegetables. Learn about symptoms and management in this factsheet.

Downy Mildew

The downy mildews are a group of fungal diseases that cause destruction of the leaves, stems, flowers and fruits of many plants, including grapes, cucumbers and roses. Learn symptoms and controls in this factsheet.

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