Potato Leafhopper
Potato leafhopper can be a serious annual pest of a wide range of plants, including apple, beans, dahlia, eggplant, potato, rhubarb, strawberry and many bedding plants. Learn more about this pest in this factsheet.
Insects
Springtails
Phil Pellitteri, UW Insect Diagnostic Lab Revised: 1/6/2005 Item number: XHT1039 Springtails are very common, small (1 to 3 mm long), wingless insects that jump or hop using a furcula, a forked structure on the underside of the abdomen that acts like a spring. Most springtails live in rich soils and leaf litter, or in […]
Two Lined Chestnut Borer
This factsheet describes two-lined chestnut borer, which is attracked to stressed and weakened oaks and is the most important insect cause of oak mortality.
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 […]
Diamondback Moth
Karen Delahaut, UW-Madison Fresh Market Vegetable Program Revised: 5/28/2004 Item number: XHT1031 The diamondback moth (Plutella xylostella) is a lepidopteran insect and an important pest of cole crops in Wisconsin. All cole crops, including cabbage, broccoli, Brussels sprouts, cauliflower, and rutabaga, are susceptible to attack by this insect. Appearance: The diamondback moth is a small, […]
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.
Fruit Flies in the Home
Phil Pellitteri, UW Insect Diagnostic Lab Revised: 4/27/2004 Item number: XHT1102 What people commonly call fruit flies are flies from the genus Drosophila. Also known as pumice or vinegar flies, they range in size from 1∕16 to 1∕8 inch long, and are light to dark brown in color. Some of the common species of fruit […]
Multicolored Asian Lady Beetle
Multicolored Asian lady beetles are a nusiance when clustered in large numbers on buildings in fall. While beneficial as a predator of pests in the landscape, they can also damage fruits. Learn more here.
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.
Periodical Cicadas
Every 17 years, Wisconsin experiences a massive emergence of periodical cicadas. These insects are generally harmless, but can be quite loud. Adult females can cause some damage to young plants through their egg-laying activities. Learn about the life cycle of cicadas and their management in this factsheet.
