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.
Deciduous Trees & Shrubs
Trees and shrubs are the backbone of our landscapes. Properly placed and well-maintained landscape plants help conserve energy, provide shade, increase the property values, attract wildlife, offer privacy and help us create peaceful outdoor living environments. Many trees and shrubs also exhibit showy flowers, vibrant fall foliage colors, and edible fruits. Learn from our publications and fact sheets about selecting, planting and maintaining trees and shrubs in Wisconsin landscapes.
Featured Tree & Shrub Articles
Choosing the Right Landscape Plants: Factors to Consider
Plant selection is one of the most important decisions a gardener, landscaper or designer makes. Learn more about selecting plants in this publication.
Is My Ash Tree Worth Treating for Emerald Ash Borer?
When should I treat my ash tree for EAB? This factsheet addresses some of the most frequently asked questions regarding the treatment of ash trees for EAB, and the removal and disposal of infested trees.
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Articles
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.
Dead Man’s Fingers
Dead man’s fingers is the name of a mushroom-like fungal growth that can be found at the base of dead or dying trees and shrubs, as well as wood objects. Learn about this distinctive fungus in this factsheet.
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.
Pear Slug (Pear Sawfly)
Pear slugs are not true slugs, but are larva of the pear sawfly. They damge many kinds of ornamental and fruit trees. This factsheet describes appearance, damage and control.
Cicadas
Known mostly for their loud buzzing sound in summer, cicadas also feed on a wide variety of plants. Learn about the life cycle of cicadas and their management 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.
Bacterial Canker
Bacterial canker is a common and sometimes lethal disease of trees in the genus Prunus including cherry, plum and peach. This factsheet describes symptoms and management of bacterial canker.
Fire Blight
Fire blight is the most destructive bacterial disease affecting plants in the rose family, including apple, pear, crabapple, hawthorn, cotoneaster, mountain ash, quince, rose, pyracantha, and spirea. Learn more here.
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.
Bacterial Wetwood
Bacterial wetwood, also known as “slime flux”, is a visually frightening-looking, but typically non-lethal, disorder of many types of deciduous trees. Learn symptoms in this factsheet.
