Chlorosis

Chlorosis is a common nutritional disorder of many woody ornamentals in Wisconsin, particularly in the southern and eastern parts of the state. This factsheet describes symptoms, causes and cures.

Degree Day Calculation

Degree Days incorporate temperature and time to quantify the rate of plant and insect development. This useful tool helps predict events such as flowering, harvest, and pest outbreaks.

Anthracnose

Anthracnose is the name of several common fungal diseases that affect the foliage of woody ornamentals in Wisconsin. This factsheet describes symptoms and management.

Black Knot, Apiosporina morbosa

Large swollen dark-colored growths on plum and cherry trees are caused by a fungal pathogen that causes the disease known as black knot. To learn more about this disease and how to manage it, read this article.

Growing Apples in Wisconsin

This publication is a great how-to resource for backyard apple growers. It covers everything from planting to pruning to disease and insect management strategies, to help you get a great harvest.

Root Rots in the Garden

Root rot is a general term that describes any disease where the causal organism attacks and leads to the deterioration of a plant’s root system. Learn about root roots and their management in this factsheet.

Growing Pears in Wisconsin

Pears are among the easiest tree fruits to grow. This 28-page publication covers everything you need to know for successful fruit production, from planting through harvest.

Eastern Filbert Blight

Eastern filbert blight is a potentially serious fungal disease found throughout the United States, affecting Corylus species, commonly known as hazelnuts or filberts. Symptoms and management are described in this factsheet.

Watercore of Apple

Watercore of apple is a physiologic disorder caused by adverse environmental conditions. Find out more about this apple disorder in this factsheet.

Apple Disorder: Sooty Blotch and Flyspeck

Sooty blotch and flyspeck are separate diseases that often occur together on apple and pear fruit during late summer. This factsheet will hlep you better understand, identify, and control these diseases.

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