Teryl R. Roper, Daniel L. Mahr, Patricia S. McManus Revised: 7/5/2010 Item number: A3639 Apricot, cherry, peach, and plum trees produce some of the tastiest fruit available. But successfully growing them in Wisconsin requires time, space, and expertise. Find out how to care for the trees and fruit, from planting through harvest. Download Article
Unsightly dark-colored lumps on plum trees are not only unattractive, but if there are lots of them, they can disfigure or even kill small trees. These swollen growths 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…
A great how-to book for backyard apple growers. Covers everything from planting tips to pruning to disease and insect management strategies.
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 […]
Teryl R. Roper, Daniel L. Mahr, Patricia S. McManus Revised: 7/5/2010 Item number: A2072 Pears are among the easiest tree fruits to grow. This 28-page publication covers everything you need to know for successful fruit production: rootstock selection and planting tips, fertilization and tree care, harvest, and storage. Includes detailed information on managing disease and […]
Eastern filbert blight is a potentially serious fungal disease found throughout the United States, including Wisconsin. It affects Corylus species, commonly known as hazelnuts or filberts, causing cankers on branches and trunks. Symptoms and management are described in this factsheet.
Author(s):T.R. Roper Watercore of apple is a physiologic disorder. The fruit tissue’s abnormal condition is a response of some apple cultivars to adverse environmental conditions—not to a disease-causing organism. Watercore is more common in warm, arid regions, but it occurs in Wisconsin often enough to concern apple growers. Find out more about this apple disorder […]
Author(s):P.S. McManus, M.F. Heimann Sooty blotch and flyspeck are separate diseases that often occur together on apple and pear fruit during late summer. This fact sheet will help you better understand, identify, and control these diseases. Download Article
Root-knot nematodes (Meloidogyne spp.) are small, soilborne, worm-like organisms that infect many agricultural and horticultural plants. This publication describes the symptoms, management and control of root-knot nematodes in Wisconsin.
Foliar nematodes are microscopic worm-like organisms in the genus Aphelenchoides. They live in and on the leaves (and other above-ground plants parts) of over 450 plant species in more than 75 plant families. They are commonly found on hostas, but can affect other herbaceous ornamentals. Learn what to look for and how to manage foliar nematodes in this factsheet.
Ashley Ellinghuysen, UW-Madison Plant Pathology Revised: 6/22/2013 Item number: XHT1220 What is brown rot? Brown rot is a destructive fungal disease of trees and shrubs in the genus Prunus which includes peaches, plum, cherries, apricots and nectarines. Brown rot is particularly a problem on the fruits of susceptible plants, with the potential to cause losses […]
Ann Joy and Brian Hudelson, UW-Madison Plant Pathology Revised: 8/13/2012 Item number: XHT1094 What is Nectria canker? Nectria canker is a common and potentially lethal disease that affects many species of trees and shrubs. This disease can cause significant damage on newly planted, as well as on established, trees and shrubs that are under stress. […]