Apple Disorder: Sooty Blotch and Flyspeck

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

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), […]

Rootstocks for Fruit Trees in Wisconsin

Author(s): Teryl R. Roper To grow fruit that is true to type, fruit trees are propagated by budding or grafting sections of known cultivars (scions) onto special rootstocks. This creates fruit trees composed of two parts: a scion (cultivar) and a rootstock. Many nurseries now offer trees with a choice of several rootstocks. In this […]

Raspberry Disorder: Fire Blight

Author(s): M.F. Heimann, S.N. Jeffers A serious disease of apple and pear trees in the Midwest, fire blight also affects many other members of the rose family, including raspberry. Although still relatively rare on raspberries, this disease has become increasingly common on certain red raspberry cultivars in Wisconsin. Find out hot to spot, prevent, and […]

Plant Growth Regulator Use in Apples

Author(s): Teryl R. Roper Plant growth regulators (PGRs) can be used with some precision for thinning fruit, regulating growth and adjusting harvest periods for apples. These products are absorbed by plant cells, primarily through the leaves and fruit, where they interact with the bio-chemical “machinery” of the plant. They work by mimicking naturally occurring plant […]

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).

Deciduous Tree and Shrub Disorder: Skeletonizing by Rose Chafer

Author(s): R.C. Williamson, C.F. Koval Skeletonizing of the leaves of roses, raspberries, grapes, fruit trees, and many other cultivated trees and shrubs may be caused by the adult rose chafer, Macrodactylus subspinosus (Fabricius). Adult beetles are attracted to flower blossoms, particularly roses and peonies. Damage occurs in June and tends to be most severe in […]

Fruit Crop Pollination

Author(s): Teryl R. Roper For fruit to develop, pollen must be transferred from the anther to the stigma. Find out which crops require pollen from the flowers of a different cultivar to set fruit, and which can set fruit on their own (3 pages). Download Article

Fertilizing Small Fruits in the Home Garden

Author(s): T.R. Roper Want a bumper crop of berries this year? Learn to determine your lime, organic matter, and fertilizer needs for raspberries, blueberries, grapes, currants, and gooseberries (4 pages). Download Article

Spotted Wing Drosophila

Christelle Guédot, UW-Madison Entomology Revised: 01/09/2015 Item number: XHT1237 Spotted wing Drosophila (SWD), Drosophila suzukii, is an invasive vinegar fly native to Southeast Asia.  It became established in Hawaii during the 1980’s, and was first discovered in the continental United States in California in 2008.  SWD quickly spread throughout the Pacific Northwest and Canada, and […]

Root-Knot Nematode

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.

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