Managing Thrips in Greenhouses

Western flower thrips are likely the most serious pest of greenhouse crops in the world. Learn about these pests, the damage they cause, and management options in this factsheet.

Managing Mites in Greenhouses

Several types of mites can cause serious damage to a variety of greenhouse crops. Learn why mites are a problem in greenhouses, and what to do about them, in this factsheet.

Managing Aphids in Greenhouses

Aphids can be persistent and serious pests in the greenhouse, and can be difficult to control due to high reproductive capability and insecticide resistance. Learn more in this factsheet.

Ralstonia Wilt

Ralstonia wilt is a usually lethal disease that affects a wide variety of vegetable and ornamental plants. Learn about symptoms and how to avoid problems with Ralstonia in this factsheet.

Southern Blight

Southern blight is a lethal fungal disease that is most common in the tropics and subtropics, but can cause problems in temperate locations like Wisconsin during periods of warm, moist weather. Learn more here.

Slime Molds

Ann Joy and Brian Hudelson, UW-Madison Plant Pathology Revised:  4/25/2004 Item number:  XHT1091 What is a slime mold?  Slime molds are members of a shape-shifting group of organisms called myxomycetes.  These organisms are found all over the world, even in deserts, high altitudes, and on the edges of snowbanks.  Although they often resemble fungi, slime […]

White Mold

White mold is a serious and often lethal fungal disease that affects a wide variety of plants. Learn about symptoms and management in this factsheet.

Crown Gall

Crown gall is the most widely distributed bacterial disease of plants in the world. This factsheet describes what crown gall looks like and how to avoid problems with this disease.

Bird’s Nest Fungi

Bird’s nest fungi are not harmful to plants, but grow on decomposing organic matter, such as on mulch in planting beds with damp, shady conditions. Learn more in this factsheet.

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.

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