Scorch and Related Problems in Trees and Shrubs

Author(s): M.F. Heimann, G.L. Worf Scorch, or the browning of leaf edges, affects a wide range of deciduous and evergreen plants throughout Wisconsin, especially ash, linden, maple, oak, pine, and spruce. While scorch is easily recognizable, it’s important to recognize that it is a symptom, not a cause. A number of problems cause symptoms that […]

Phenology

Karen Delahaut, UW-Madison Fresh Market Vegetable Program Revised:  5/17/2012 Item number:  XHT1085 The word phenology is derived from the Greek word phaino meaning “to show” or “to appear”.  Phenology is a branch of science that studies the relationships between periodic biological events—usually the life cycles of plants and animals—and environmental changes.  Natural events such as […]

Winter Salt Injury and Salt-tolerant Landscape Plants

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

Choosing Trees and Shrubs Under Powerlines

Laura Jull, UW-Extension Revised:  11/2/2011 Item number:  MG&E website This website features small trees that can be planted underneath or near powerlines, in addition to larger shrubs that can be used for screening. The search data includes plants for sun, partial shade or shade, wet, moist or dry soil, plants with showy flowers, fruit or […]

Root Rots in the Garden

Brian Hudelson, UW-Madison Plant Pathology and Laura Jull, UW-Madison Horticulture Revised:  5/20/2011 Item number:  XHT1072 What is root rot? Root rot is a general term that describes any disease where the pathogen (causal organism) attacks and leads to the deterioration of a plant’s root system.  Most plants are susceptible to root rots, including both woody […]

Scale Insects

Scale insects feed on many plants, but are often overlooked because they are immobile and many types look like small bumps that just might be plant parts blending in with the leaves, twigs and branches. These insects secrete a waxy covering – that gives them their common name – to protect them from the environment and predators. Learn more about this group of inconspicuous and atypical insects in this article…

Volutella Blight

Gina Muscato and Brian Hudelson, UW-Madison Plant Pathology Revised:  8/13/2012 Item number:  XHT1191 What is Volutella blight?  Volutella blight is a common and potentially lethal disease of Japanese pachysandra (Pachysandra terminalis), an evergreen, semi-woody groundcover that is grown in shade gardens throughout hardiness zones 4 and 5 in Wisconsin.  Volutella blight can severely limit the […]

Hardiness Maps

Some plants can survive colder winter temperatures than others. Zone of cold hardiness refers to the plant’s ability to survive the winter. It plays a key factor in selecting landscape plants for the region. USDA has classified the entire United States into 13 plant hardiness zones based on their average, annual minimum temperature during 30 […]

Reducing Soil pH

Sherry Combs, formerly of the UW-Madison Soil and Plant Analysis Lab Revised:  10/27/2007 Item number:  XHT1151 Is your soil pH too high?  Probably not, although the popular press urges most gardeners to question whether their garden soil pH is ‘right’.  Only a soil test for pH can indicate whether the pH is ‘right’, and ‘right […]

Planning and Designing Your Home Landscape

Dan A. Wilson, Thomas J. Wilson, Wayne G. Tlusty Revised:  5/10/2010 Item number:  G1923 This publication explores landscape planning: putting the plan on paper; selecting, placing, and planting trees and shrubs; and maintaining the home grounds. Download Article

Mulches for Home Gardens and Plantings

Boost your garden’s production with mulches. This publication shows when to use organic mulches, like bark or leaves, and synthetic mulches, like plastic sheets, and teaches how to apply them.

Woodpecker Ecology & Damage Management

Woodpeckers are attractive, interesting visitors to bird feeders and yards. In addition to adding beauty to the landscape, woodpeckers are an integral part of the ecosystem. Woodpeckers are primary cavity nesters, which means that they use their bills (and reinforced skull structure) to excavate holes into dead wood. Woodpeckers use the cavities they create for […]

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