Leaf Color Change in Autumn

The bright yellow, orange and red colors of autumn leaves are one of nature’s most beautiful spectacles. Although a familiar annual event, much of our understanding of autumn leaf coloration has, until recently, been based primarily on random observation and speculation.

Pruning Deciduous Trees

Laura Jull, UW-Madison Horticulture, UW-Extension Revised:  8/13/2012 Item number:  XHT1014 Why prune trees? Pruning is important for a variety of reasons.  Pruning can help control the size of a tree, direct growth, influence flowering or fruiting, or maintain plant health and appearance.  Pruning can also increase the safety of a tree by removing broken, diseased, […]

Plants Not Favored by Deer

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.

Hummingbirds in the Garden

Hummingbirds are a large group of tiny birds with iridescent feathers, looking like sparkling jewels zipping among the flowers. These nectar-feeding birds utilize a wide range of plants to supply their enormous metabolic needs. Learn more about this fascinating group of birds and how to encourage ruby-throated hummingbirds, the Midwest’s only hummingbird species, in your garden in this article…

Deciduous Trees Disorder: Miscellaneous Causes of Decline

Author(s): G.L. Worf., J.E. Kuntz Many problems and disorders can lead to tree decline. This fact sheet explores sun scald, girdling roots, mower injury, previous defoliation, graft incompatibility, twine and tree wrap injury, and gas leaks as common causes of tree decline and death (4 pages). Click on this link to view the PDF of […]

Jumping Worms

Native to East Asia, jumping worm was found in Wisconsin in 2013. Jumping worms feed on soil organic matter, leaf litter and mulch and create very grainy-looking and hard little pellets when they excrete. The ‘changed’ soil resembles large coffee grounds, and has poor structure for plants to grow in. Also, the worms feed on […]

Wood Mulch and Tree Health

Jane Cummings-Carlson and John Kyhl, Wisconsin Department of Natural Resources; Gina Foreman and Brian Hudelson, UW-Madison Plant Pathology Revised:  8/13/2012 Item number:  XHT1121 What are the benefits of wood mulch? Wood mulch is typically available as chipped wood, or shredded or chunked bark, and can contribute to tree health in many ways.  When high quality, […]

Herbicide Damage

Brian Hudelson, UW-Madison Plant Pathology Revised:  5/11/2010 Item number:  XHT1004 What is herbicide damage?  Herbicide damage is any adverse, undesired effect on a plant that is caused by exposure of that plant to a pesticide designed for weed control (i.e., a herbicide).  Any plant can be subject to this problem. What does herbicide damage look […]

Woody Ornamentals Pest Management in Wisconsin

Author(s): Chris Williamson, P.J. Liesch, Jim Kerns, Roger Flashinski Woody Ornamentals Pest Management in Wisconsin is an indispensable resource for nursery growers. This completely revised publication identifies pests of trees and shrubs in the state plus the products available for their control. It also notes products that are registered for use by homeowners (56 pages; […]

Lilacs for Cold Climates

Laura G. Jull Revised:  8/13/2012 Item number:  A3825 If you’re thinking about planting lilacs, here’s some timely help! UW-Extension’s Lilacs for Cold Climates describes the best of the top-rated cold-weather cultivars. These are the gems that will survive when winter temperatures tumble below zero. Every page dazzles with bouquets of blooms. Lilacs for Cold Climates […]

Support Extension