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 […]

Root Rots on Houseplants

Brian Hudelson, UW-Madison Plant Pathology and Laura Jull, UW-Horticulture Revised:  4/25/2004 Item number:  XHT1071 What is root rot?  Root rot is a general term that describes any disease where the pathogen (causal organism) causes the deterioration of a plant’s root system.  Most plants are susceptible to root rots, including both woody and herbaceous ornamentals.  Root […]

Prairie Primer

Whether you’re a beginning or an experienced gardener, you’ll appreciate the step-by-step instructions for planting, landscaping, and managing your own prairie plot. The Prairie Primer has more than 50 illustrated descriptions of grasses, wildflowers, and shrubs help you select the best plants for specific sites. Gardeners and prairie enthusiasts alike will find the spiral-bound book convenient to use in the field.

Sampling Garden Soils and Turf Areas for Testing

John Peters, Doug Soldat Revised:  5/11/2010 Item number:  A2166 Save money and protect the environment by having your soil tested before applying lime and fertilizer. This concise publication tells you when and how to sample and where to send it for testing (2 pages; 2008). Download Article

Aphids

Aphids are soft-bodied, sucking insects that are sometimes called plant lice. They feed on plant sap and subsequently excrete a sugary substance (called honeydew) that can attract ants as well as support the growth of a saprophytic fungus called sooty mold. Learn about common aphids found in home gardens in this factsheet.

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 […]

Aphids, in-depth

Aphids may be viewed as just another pest for gardeners to try to eliminate, but they’re really fascinating insects, with bizarre lifestyles and eating habits and they’re also dinner for lots of other insects. Forming colonies covering the leaves and stems of plants, these small sap-sucking creatures reproduce incredibly fast and a few also transmit plant diseases. Learn more about this large group of insects and how to manage them in the garden in this article…

Chlorosis

Brian Hudelson, UW-Madison Plant Pathology, UW-Extension Revised:  1/8/2012 Item number:  XHT1002 What is chlorosis?  Chlorosis is a common nutritional disorder of many woody ornamentals in Wisconsin, particularly in the southern and eastern parts of the state.  Pin oaks are most commonly affected by chlorosis, although many other trees and shrubs (e.g., white oak, red maple, […]

Home Landscape Insecticides

Karen Delahaut, UW-Madison Fresh Market Vegetable Program Revised:  8/13/2012 Item number:  XHT1096 Recently, several commonly-used insecticides for the control of insects on woody landscape plants have been taken off the market.  As a result, it’s becoming ever more challenging for home gardeners to find suitable insecticide products at garden centers, discount stores, and hardware stores.  […]

Degree Days for Common Landscape Insect Pests

Karen Delahaut, UW-Madison Fresh Market Vegetable Program Revised:  8/13/2012 Item number:  XHT1088 Ash Borer 1st instar larvae = 275-500 DD50 Ash Plantbug Nymphs = 100-200 DD50 Birch Leafminer 1st generation larvae = 275-500 DD50 Black Vine Weevil 1st generation adults = 400-600 DD50 2nd generation adults = 900-1000 DD50 Bronze Birch Borer Larvae = 400-500 […]

Degree Day Calculation

Karen Delahaut, UW-Madison Fresh Market Vegetable Program Revised:  8/6/2012 Item number:  XHT1086 Indicator plants are not always suitable for the timing of pest management practices.  You may not have the critical indicator plant  nearby to time local activities, or there may not be a good indicator plant for a particular pest’s crucial life stage.  Another […]

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 […]

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