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Yard and Garden > Plant Diseases in Horticulture & Forestry

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Plant and Insect Diagnostic Clinic Sample Submission Form
Download and use this form when submitting a plant problem (plant disease or insects/mites on plants), an insect for identification, a plant for identification, or a mushroom for identification. Th
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Crown Rot: A Serious Disease of Hosta and Other Ornamentals - Sustainable Urban Landscapes
Few pests plague hostas and other ornamentals in Iowa. However, a disease called crown rot has been damaging hostas since the mid-1990s. This publication discusses symptoms and causes of crown rot
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Midwest Fruit Pest Management Guide 2017
This 180-page guide contains a spray schedule and background information for commercial producers of apples, pears, cherries, peaches, plums, grapes and berries. Recommendations for herbicides, pestic
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Publication $15.00 Add to Cart
Verticillium Wilt of Woody Plants -- Sustainable Urban Landscapes
Learn about symptoms and management strategies for Verticillium wilt which affects a wide range of trees and woody shrubs. This publication also provides a list of susceptible and resistant tree speci
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Grape Production and Management Series CD
This CD contains full versions of selected Crop Adviser Institute (CAI) learning modules in the Pest, Nutrient, and Crop Management areas. You will have full access to all materials except t
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CD/DVD $5.00 Add to Cart
Got Plant or Insect Problems?
The ISU Plant and Insect Diagnostic Clinic helps Iowans diagnose and manage plant diseases, weeds, and insects in fields and around your home. Here's an introduction to the clinic.
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Pest Alert - Bur Oak Blight
Published by the USDA Forest Service in 2011, this publication uses clear photos to show the symptoms of bur oak blight, a recently discovered and damaging disease of bur oaks in Iowa. Includes how to
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Common Problems of Ash Trees
Many ash tree problems can be mistaken for emerald ash borer infestation. Before removal or needlessly treating with pesticides, use this diagnostic guide to distinguish emerald ash borer injury from
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Organic Apple Production in Iowa
New and experienced organic apple growers will find recommendations in this guide for managing insect pests, diseases, and weeds. Tips about marketing opportunities also are included.
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Introduction to Iowa Native Prairie Plants -- Sustainable Urban Landscapes
Find out more about native plants and their uses in a garden or large planting. Includes more than 20 color photos, plus a detailed chart of prairie plant characteristics.
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Management and Control of Summer Patch (Magnaporthe poae)
Summer patch and necrotic ring spot are common fungi that affect turfgrass. This publication discusses how to identify the fungi, its characteristics and how to manage it if grass is infected. Pr
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Tomato Diseases and Disorders
Learn about the symptoms and management of common problems for garden and greenhouse tomatoes.
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Anthracnose of Shade Trees
Anthracnose is one of the most common foliage diseases of shade trees in Iowa. Find out about symptoms and management. Color photos.
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Oak Wilt-Identification and Management -- Sustainable Urban Landscapes
Management practices described can reduce losses due to this most damaging disease of oak trees in Iowa.
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Hosta Diseases and Pests -- Sustainable Urban Landscapes
Easily identify common diseases and pests and how to manage them effectively.
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Common Rose Diseases
Several rose diseases caused by fungus, virus, or bacterium are discussed. Disease-resistant varieties also are mentioned.
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Leaf Spot and Melting Out of Turfgrass -- Sustainable Urban Landscapes
Description and management information, plus how to submit samples for diagnosis.
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Fungal Cankers of Trees -- Sustainable Urban Landscapes
Cultural management techniques can help reduce the risk of canker diseases.
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Using Mulches in Managed Landscapes -- Sustainable Urban Landscapes
Tips on using mulches to maximize benefits and avoid pitfalls.
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Common Diseases of Conifers in Iowa
Color photos help you make the right diagnosis for nine diseases. Causal agents, typical host species, symptoms, and disease spread are discussed. Also learn proper maintenance and chemical controls
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Publication $3.00 Add to Cart
Tree Fruit Pollination
The production of fruit on most plants, trees, and shrubs results from pollination of the blossoms. This publication explores tree fruit pollinations including methods of pollination, blooming times,
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Pine Wilt: A Fatal Disease of Exotic Pines in the Midwest -- Sustainable Urban Landscapes
Find out how this disease is caused, how it spreads, and what can be done to manage it.
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Dutch Elm Disease and Disease-Resistant Elms -- Sustainable Urban Landscapes
Find out about disease-resistant elms to combat Dutch Elm Disease.
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Diagnosing Tree Problems -- Sustainable Urban Landscapes
Guidelines for examining unhealthy trees and finding expert help.
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Juniper Diseases
Help with identification and control of the most common juniper diseases. Color photos and tables.
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