Vine Crops Disorder: Scab

Karen Delahaut, Walt Stevenson Revised:  10/24/2011 Item number:  A3282 Scab, also called gummosis, is one of the most important diseases affecting vine crops. In cool moist environments, scab can be a yield- limiting disease. While the pathogen infects a broad range of vine crops including pumpkins, squash, and melons, it is rarely a problem on […]

Vine Crops Disorder: Powdery Mildew

Karen Delahaut, Walt Stevenson Revised:  10/24/2011 Item number:  A3805 Powdery mildew is a foliar disease that occurs late in the season on cucumbers, gourds, muskmelons, pumpkins, and squash. It is less common on watermelon. On susceptible crops, this disease is often severe enough to significantly reduce yields by reducing the number and size of fruit. […]

Vine Crops Disorder: Anthracnose

Karen Delahaut, Walt Stevenson Revised:  10/24/2011 Item number:  A3279 Anthracnose is a destructive fungal disease of the foliage, stems, and fruit of cucumbers, gourds, muskmelons, and watermelons. Find out how to spot, prevent, and control this disorder in your garden. Click on links to read this publication.   Download Article

Vine Crops Disorder: Angular Leaf Spot

Karen Delahaut, Walt Stevenson Revised:  10/24/2011 Item number:  A3801 Angular leaf spot is a bacterial disease that can be economically damaging to cucumbers, honeydew melon, and zucchini squash grown in Wisconsin. The bacterium Pseudomonas syringae pv. lachrymans infects leaves, stems, and fruit. Read this fact sheet to find out how to spot, prevent, and control […]

Vine Crops Disease: Phytophthora Blight

Vine Crops Disease: Phytophthora Blight Revised:  10/24/2011 Item number:  A3834 Phytophthora blight is a fungal disease capable of completely destroying zucchini, pumpkin, summer squash, and watermelon fields and seriously damaging other vine crops. This fact sheet describes the symptoms and effects, disease cycle, and control methods. Click on links to read this publication.   Download […]

Tomato Disorder: Post-Harvest Fruit Diseases

Karen Delahaut, Walt Stevenson Revised:  10/24/2011 Item number:  A3799 Even though symptoms may not appear until after harvest, many of the disease-causing organisms that cause fruit rot infect tomatoes before they ripened. Once fruit is infected, little can be done during harvest or storage to reduce the damage. Most fruit rot fungi and bacteria also […]

Tomato Disorder: Physiological Fruit Problems

Karen Delahaut, Walt Stevenson Revised:  8/6/2012 Item number:  A3798 Environmental factors can affect the look—and sometimes the flavor—of developing tomato fruits. Because these problems are not caused by disease organisms, there are no pesticide recommendations for prevention or management. This 4-page publication briefly covers blossom end rot, blotchy ripening, catfacing, growth cracks, puffiness, and sunscald. […]

Potato Disorders: Common Scab and Powdery Scab

Karen Delahaut and Walt Stevenson Revised:  8/6/2012 Item number:  A3833 Two distinctly separate diseases commonly known as scab can infect potatoes, significantly reducing tuber appearance and quality. This fact sheet helps distinguish between the two diseases and outlines management strategies for each. Download Article

Handbook of Pea Diseases

D.J. Hagedorn Revised:  8/6/2012 Item number:  A1167 This guide provides essential scientific information and meaningful visual guidance regarding the most common diseases of pea, Pisum sativum L., especially those of canning and freezing peas.   Download Article

Corn Disorders: Smut and Rust

Karen Delahaut, Walt Stevenson Revised:  8/6/2012 Item number:  A3800 Common smut is caused by the fungus Ustilago maydis and is the most widespread disease of sweet corn, occurring everywhere that corn is grown. Learn about the signs and symptoms of this disorder, as well as ways that it can be controlled, by reading this fact […]

Cole Crops Disorder: Clubroot

Karen Delahaut, Walt Stevenson Revised:  8/6/2012 Item number:  A1128 Clubroot is an old and serious disease of cole crops, including Brussel sprouts, cabbage, Chinese cabbage, and turnips. Broccoli, cauliflower, kale, kohlrabi, rutabagas, and radishes are susceptible as well. Use this fact sheet to find out about this persistent disease and how to effectively control it […]

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