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 […]

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, […]

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 […]

Seed Starting

Starting your garden from seeds might be easier than you think. Check out this article to get practical tips on starting your plants from seeds.

Tomato Pruning

Tomatoes are a popular vegetable that many people grow in their home gardens. Pruning tomatoes can create stronger and healthier plants that will grow larger numbers of higher quality tomato fruits later into the growing season.

Landscaping In Spite of Black Walnuts

Black walnut trees can have a dramatic, negative affect on certain plants. To learn more about juglone toxicity and which plants are suceptible, read this article…

Tobacco Mosaic

Tobacco mosaic causing a blotchy light and dark coloring (mosaic) of tobacco leaves. Tobacco mosaic causing a blotchy light and dark coloring (mosaic) of tobacco leaves.

Verticillium Wilt of Vegetables

Authors: Ken Frost* and Brian Hudelson, UW-Madison Plant Pathology Last Revised: 05/05/2013 X-number: XHT1146 What is Verticillium wilt? Verticillium wilt is a typically fatal disease that affects a wide range of vegetable crops in Wisconsin. Vegetables commonly and severely affected by Verticillium wilt include tomato, potato, pepper, eggplant, cucumber, muskmelon, pumpkin and watermelon. Other vegetables […]

Bacterial Wilt of Cucurbits

What is bacterial wilt? Bacterial wilt is a common and destructive disease that affects cucurbits (i.e., plants in the cucumber family), including economically important crops such as melon (Cucumis melo), cucumber (Cucumis sativus) and, to a lesser extent, squash and pumpkin (Cucurbita spp.). This disease is distributed throughout the United States; and can be found anywhere that cucurbits are grown.

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