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…

Boxwood Blight

Boxwood blight (also known as box blight and boxwood leaf drop) is a devastating disease of boxwood (Buxus spp.) that can cause leaf loss and eventual death of affected shrubs. This factsheet covers symptoms and management.

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.

Cucumber Mosaic

Cucumber mosaic is a viral disease that affects a wide range of fruits, vegetables, herbaceous and woody ornamentals, and weeds. This factsheet covers identification and ways to prevent this incurable disease.

Root-Knot Nematode

Root-knot nematodes are small, soilborne, worm-like organisms that infect many agricultural and horticultural plants. This publication describes the symptoms, and management of root-knot nematodes in Wisconsin.

Foliar Nematodes

Foliar nematodes are microscopic worm-like organisms that live in and on leaves (and other above-ground plants parts). Learn what to look for and how to manage foliar nematodes in this factsheet.

Thousand Cankers Disease

Though not yet found in Wisconsin, Thousand Cankers disease (TCD) is a serious, potentially fatal disease of black walnut, a native tree. Learn what to watch for here.

Rose Rust

Rose rust is a common fungal disease which affects affects many varieties of rose, with some varieties and hybrids more prone to the disease. Learn to identify and manage this disease in this factsheet.

Nectria Canker

Nectria canker is a common and potentially lethal disease that affects many species of trees and shrubs. This factsheet describes what nectria canker looks like and management options.

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