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.
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
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.
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.
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.
Apple Scab
Apple scab is a potentially serious fungal disease of ornamental and fruit trees in the rose family. This factsheet describes symptoms, management and control of this sometimes serious disease.
Roseslug Sawfly
Roseslug sawfly causes damage to leaves of wild and cultivated roses in early summer. This factsheet will help you identify this insect and manage the damage it causes.
Root and Crown Rots
This factsheet covers root/crown rot, which is a general term that describes disease of woody ornamentals where the causal organism attacks a plant’s root system and/or lower trunk or branches near the soil.
Purple Bordered Leaf Spot
Purple-bordered leaf spot (also called eye spot or Phyllosticta leaf spot) is a common, but mostly cosmetic, disease on maples. This factsheet describes symptoms and management.
