Growing Salad Greens in Wisconsin

K.A. Delahaut, A.C. Newenhouse Revised:  10/10/2011 Item number:  A3788 Salad greens provide market gardeners a high-value crop that brings a premium price if grown and marketed successfully. Salad mixes have become particularly popular among customers seeking convenience. Salad mix is a collection of leafy greens pre-mixed and sold together. This idea originated in France centuries […]

Growing Onions, Garlic, Leeks, and Other Alliums in Wisconsin

K.A. Delahaut, A.C. Newenhouse Revised:  10/10/2011 Item number:  A3785 This detailed publication offers plenty of tips on how to grow various alliums such as sweet onions, leeks, storage onions, scallions, and garlic. Includes information on site and cultivar selection, planting, soil and irrigation management, dealing with insects, diseases, and weeds, and tips for harvesting, handling, […]

Growing Carrots, Beets, Radishes, and Other Root Crops in Wisconsin

K.A. Delahaut, A.C. Newenhouse Revised:  10/10/2011 Item number:  A3686 This detailed publication is packed with practical information for organic and conventional growers of root crops such as carrots, radishes, beets, parsnips, rutabagas, and turnips, and it’s tailored to Wisconsin’s growing conditions (21 pages).   Click on link to read publication. Download Article

Managing Thrips in Greenhouses

R. Chris Williamson, Turf and Ornamental Specialist Revised:  4/25/2004 Item number:  XHT1022 Western flower thrips, Frankliniella occidentalis, are likely the most serious pest of greenhouse crops in the world.  Thrips have spread throughout the horticulture industry on plugs, cuttings, and small plants.  Because of thrips’ small size (1∕16 inch) and tendency to remain hidden in […]

Managing Mites in Greenhouses

R. Chris Williamson, UW Turf and Ornamental Specialist Revised:  4/25/2004 Item number:  XHT1021 Several types of mites can cause serious damage to a variety of greenhouse crops.  Among the most common mite species are the broad mite (Polyphagotarsoeneumus latus), carmine spider mite (Tetranychus cinnabarinus), cyclamen mite (Phytonemus pallidus), the Lewis spider mite (Eotetranychus lewisi), and […]

Managing Aphids in Greenhouses

R. Chris Williamson, UW Turf and Ornamental Specialist Revised:  4/25/2004 Item number:  XHT1020 Aphids can be persistent and serious pests in the greenhouse.  Because of their high reproductive capability and resistance to numerous insecticides, they can be difficult to control.  Aphids are sucking insects that damage greenhouse crops by causing curling and distortion of young, […]

Ralstonia Wilt

Pest Alert Authors: Brian Hudelson, UW-Madison Plant Pathology Last Revised: 05/01/2020 X-number: XHT1011 What is Ralstonia wilt?  Ralstonia wilt (also sometimes known as Southern wilt) is a usually lethal disease that affects over 250 plants in over 40 plant families.  Susceptible greenhouse-grown ornamentals include, but are not limited to, plants in the genera Capsicum, Cosmos, Cyclamen, Dahlia, Fuschsia, Gerbera, Hydrangea, Impatiens, Lantana, Nasturtium and Pelargonium.  Vegetables such as eggplant, pepper, potato […]

Powdery Mildew (Vegetables)

Brian Hudelson, UW-Madison Plant Pathology Revised:  2/18/2010 Item number:  XHT1005b What is powdery mildew? Powdery mildew is a disease that occurs on the above-ground parts (especially the leaves) of many agricultural crops (including vegetables), as well as deciduous trees and shrubs, herbaceous ornamental plants, and indoor houseplants.  Conifers are not affected by this disease. What […]

Potato Scab

Brian Hudelson, UW-Madison Plant Pathology Revised:  4/24/2005 Item number:  XHT1117 What is potato scab?  Potato scab is a common and disfiguring disease of potato tubers that affects potatoes wherever they are grown.  Thin-skinned potato varieties tend to be more severely affected.  This disease can also affect other root vegetables such as beets, carrots, parsnip, radish, […]

Southern Blight

Authors: Ann Joy and Brian Hudelson, UW-Madison Plant Pathology Last Revised: 01/03/2019 X-number: XHT1042   What is Southern blight?  Southern blight is a lethal fungal disease that is most common in the tropics and subtropics.  This disease causes damage in the southern U.S. and can even cause problems in temperate locations like Wisconsin during periods of warm, moist […]

Slime Molds

Ann Joy and Brian Hudelson, UW-Madison Plant Pathology Revised:  4/25/2004 Item number:  XHT1091 What is a slime mold?  Slime molds are members of a shape-shifting group of organisms called myxomycetes.  These organisms are found all over the world, even in deserts, high altitudes, and on the edges of snowbanks.  Although they often resemble fungi, slime […]

Septoria Leaf Spot

Brian Hudelson, UW-Madison Plant Pathology Revised:  3/10/2012 Item number:  XHT1073 What is Septoria leaf spot?  Septoria leaf spot is one of two common fungal diseases that can devastate tomatoes in both commercial settings and home gardens.  The second common tomato blight, early blight, is detailed in University of Wisconsin Garden Facts XHT1074. What does Septoria […]

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