Vine Crops Disease: Phytophthora Blight

Phytophthora blight is a serious disease of zucchini, pumpkin, summer squash and melons, as well as other vine crops. This factsheet describes symptoms, disease cycle and control methods.

Tomato Disorder: Physiological Fruit Problems

Environmental factors can affect the look, and sometimes flavor of tomatoes. This publication covers disorders including blossom end rot, blotchy ripening, catfacing, cracking, puffiness and sunscald.

Handbook of Pea Diseases

This guide provides scientific information and visual guidance regarding the most common diseases of peas, especially those grown for canning and freezing.

Corn Disorders: Smut and Rust

Corn smut, which damages ears and kernels, and rust, which affects leaves, husks and tassels, are concerns wherever corn is grown. Learn about these diseases in this publication.

Cole Crops Disorder: Clubroot

Clubroot is an old and serious disease of cole crops, such as broccoli, cauliflower, cabbage, Brussels sprouts and more. Learn about this persistent disease and control methods in this publication.

Cole Crops Disorder: Blackleg

Blackleg of cole crops is not as common as it once was, but it can still be a concern. This publication covers the disease’s life cycle and offers effective control methods.

Growing Salad Greens in Wisconsin

Salad greens provide market gardeners a high-value crop that brings a premium price if grown and marketed successfully. Learn more in this comprehensive publication.

Ralstonia Wilt

Ralstonia wilt is a usually lethal disease that affects a wide variety of vegetable and ornamental plants. Learn about symptoms and how to avoid problems with Ralstonia in this factsheet.

Powdery Mildew (Vegetables)

Powdery mildew occurs on the above-ground parts, especially leaves, of many agricultural crops (including vegetables) as well as many ornamental plants, trees and shrubs. Learn how to manage this disease here.

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