Milkweed (Ornamental Plants Toxic to Animals)

To increase monarch populations, people are increasingly planting ornamental types of milkweed and encouraging common milkweed to grow wherever it occurs in uncultivated areas. While milkweed is beneficial to monarch populations, people need to be aware that it is toxic and can be lethal to animals, particularly horses and other equines.

Tobacco Mosaic

Tobacco mosaic causing a blotchy light and dark coloring (mosaic) of tobacco leaves. Tobacco mosaic causing a blotchy light and dark coloring (mosaic) of tobacco leaves.

Fungus Gnats on Houseplants

Fungus gnats (Family Sciaridae) are insects commonly associated with overwatered houseplants. They can become a nuisance when they are present in large numbers and fly around inside a home. In most situations, fungus gnats are a cosmetic problem. However, on occasion, fungus gnat larvae can cause plant damage.

Strawberry Pest Management for Home Gardeners

Author(s): D.L. Mahr, P.S. McManus, T.R. Roper Strawberries are one of the easiest fruit crops for gardeners to grow. However, they are susceptible to many disease and insect pests that must be managed to produce consistent crops of edible fruit. This brief 2-page bulletin is a companion to Extension publication Growing Strawberries in Wisconsin (A1597), […]

Home Fruit Cultivars for Southern Wisconsin

Find out which fruit cultivars are recommended for Northern Wisconsin. This publication describes flavor, ripening date, winter hardiness, and more. It includes tree fruits (apples, pears, crabapples), stone fruits (apricots, tart cherries, plums), and small fruits (strawberries, raspberries, currants, elderberries, gooseberries, juneberries or serviceberries, grapes, blueberries, lingonberries).

Verticillium Wilt of Vegetables

Authors: Ken Frost* and Brian Hudelson, UW-Madison Plant Pathology Last Revised: 05/05/2013 X-number: XHT1146 What is Verticillium wilt? Verticillium wilt is a typically fatal disease that affects a wide range of vegetable crops in Wisconsin. Vegetables commonly and severely affected by Verticillium wilt include tomato, potato, pepper, eggplant, cucumber, muskmelon, pumpkin and watermelon. Other vegetables […]

Powdery Mildew – Herbaceous Ornamental

Powdery Mildew – Herbaceous Ornamental Authors: Brian Hudelson, UW-Madison Plant Pathology Last Revised: 02/18/2010 X-number: XHT1005c What is powdery mildew? Powdery mildew is a disease that occurs on the above-ground parts (especially the leaves) of many herbaceous ornamental plants, as well as deciduous trees and shrubs, indoor houseplants, and many agricultural crops. Conifers are not […]

Bacterial Wilt of Cucurbits

What is bacterial wilt? Bacterial wilt is a common and destructive disease that affects cucurbits (i.e., plants in the cucumber family), including economically important crops such as melon (Cucumis melo), cucumber (Cucumis sativus) and, to a lesser extent, squash and pumpkin (Cucurbita spp.). This disease is distributed throughout the United States; and can be found anywhere that cucurbits are grown.

Codling Moth

Codling moth is an insect pest of apple, pear, and walnut crops in Wisconsin. Larval feeding can render fruit unmarketable, potentially causing severe economic loss. Learn how to identify, monitor, and deter this insect pest.

Apple Maggot

Apple maggot, also commonly known as railway worm, is a significant pest of apples in commercial and backyard orchards in most of the United States and eastern Canada. Although predominantly a pest of apples, apple maggot will also infest pears, apricots, peaches, cherries, crabapples, and rose hips. Learn about the life cycle, damage patterns, and control options to effectively manage apple maggot.

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