R. Chris Williamson, UW-Extension Turf and Ornamental Specialist Revised: 8/13/2012 Item number: XHT1065 The black vine weevil was first detected in Connecticut in 1910, and was reported to have been accidentally imported from Europe through the movement of ornamental plants. Subsequently, it has spread across the northern U.S., including Wisconsin. There is a closely related […]
Laura Jull, UW-Extension Revised: 8/13/2012 Item number: A3877 This publication focuses on recognizing and preventing plant damage caused by deicing salts, evaluates the pros and cons of alternatives to rock salt, and provides an extensive list of salt-tolerant plants. Download Article
When selecting plants for landscaping, consider choosing ones that offer showy fall foliage. This beautifully illustrated 38-page publication provides an extensive (though by no means comprehensive) list of commercially available woody plants that offer spectacular fall color.
Vijai Pandian, Horticulture Educator, Brown County UW-Extension Revised: 8/13/2012 Adopting proper tree planting techniques ensures long survival and good health of your trees. This publication is intended to guide homeowners, landscapers and individuals through the steps of proper tree planting techniques. This brochure shows you how to correctly plant balled and burlapped trees and shrubs. Download Article
Brian Hudelson, UW-Madison Plant Pathology Revised: 8/13/2012 Item number: XHT1005a What is powdery mildew? Powdery mildew is a disease that occurs on the above-ground parts (especially the leaves) of many deciduous trees and shrubs, as well as herbaceous ornamental plants, indoor houseplants, and many agricultural crops. Conifers are not affected by this disease. What does […]
Mary Francis Heimann, O.S.F., Distinguished Outreach Specialist emerita at the University of Wisconsin-Madison and Brian Hudelson, UW-Madison Plant Pathology Revised: 12/9/2004 Item number: XHT1026 What is bacterial canker? Bacterial canker is a common and sometimes lethal disease of trees in the genus Prunus including cherry, plum and peach. Bacterial canker is also known as “gummosis”, […]
Ann Joy and Brian Hudelson, UW-Madison Plant Pathology Revised: 4/24/2004 Item number: XHT1090 What is 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. It can kill or disfigure a tree or shrub, depending on […]
Jim Olis* and Brian Hudelson, UW-Madison Plant Pathology *Completed as partial fulfillment of the requirements for a BS in Plant Pathology at the University of Wisconsin Madison. Revised: 8/6/2012 Item number: XHT1077 What is downy mildew? The downy mildews are a group of fungal diseases that cause destruction of the leaves, stems, flowers and fruits […]
Mary Francis Heimann, O.S.F., Distinguished Outreach Specialist emerita at the University of Wisconsin-Madison and Brian Hudelson, UW-Madison Plant Pathology Revised: 8/13/2012 Item number: XHT1193 What is 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. This disorder can reduce the aesthetic […]
Brian Hudelson, UW-Madison Plant Pathology Revised: 11/19/2018 Item number: XHT1007 What is apple scab? Apple scab is a potentially serious fungal disease of ornamental and fruit trees in the rose family. Trees that are most commonly and severely affected include crabapple, hawthorn, mountain-ash, apple and pear. In ornamental trees, leaf loss caused by apple scab […]
Laura Jull, UW-Horticulture Revised: 8/13/2012 Item number: XHT1012 Why grow crabapples? Ornamental crabapples are very popular, small to medium-sized ornamental trees suitable for urban environments. There are more than 650 different cultivars of crabapples with a variety of leaf, flower, and fruit colors, fruit sizes, and growth forms. Crabapples are tolerant to a wide range […]
If deer visit your property, you’ve likely already experienced the frustration of having landscape plants destroyed overnight. Before planting (or replanting), check out this list of trees, shrubs, flowers, herbs, and grasses that deer tend to avoid.