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Deciduous Trees & Shrubs

  • Caring for Your Established Shade Trees
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    Caring for Your Established Shade Trees

    Author(s) E. R. Hasselkus Losing a large shade tree can be a downer. This fact sheet will tell you how to minimize chances that a big old friend ...

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  • Caring for Deciduous Shrubs
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    Caring for Deciduous Shrubs

    Author(s) E. R. Hasselkus Here's sound advice on planting, watering, mulching, pruning, and maintaining flowering shrubs and other woody plants (...

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  • Birch Leafminer
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    Birch Leafminer

    Author(s) P. J. Pellitter Birch leafminers are insects that can destroy the leaves of all ornamental birch varieties grown in Wisconsin. European,...

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  • Birch Disorder: Bronze Birch Borer
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    Birch Disorder: Bronze Birch Borer

    Author(s) R. C. Williamson, P. J. Pellitteri The bronze birch borer is a serious pest of birch trees in the Midwest. It can severely injure or kil...

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  • Ash Plant Bug
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    Ash Plant Bug

    Author(s) P. J. Pellitteri, C. F. Koval A small insect called the ash plant bug attacks ash trees in June and July, causing thin, discolored, spot...

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  • Linden Borer
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    Linden Borer

    Author(s) C. A. Johnson, R. C. Williamson The linden borer (Saperda vestita Say) is a native insect found throughout northeastern North America th...

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  • Japanese Beetles
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    Japanese Beetles

    Author(s) R. Chris Williamson This fact sheet on the Japanese beetle, considered the single most important turf grass pest in the United States b...

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  • Honeysuckle Disorder: Honeysuckle Leaffolding Aphid
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    Honeysuckle Disorder: Honeysuckle Leaffolding Aphid

    Author(s) C. F. Koval, D. L. Mahr Landscapers and nursery operators in Wisconsin long considered honeysuckle a low-maintenance plant. The arrival ...

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  • Honeylocust Disorder: Plantbugs and Leafhoppers
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    Honeylocust Disorder: Plantbugs and Leafhoppers

    Author(s) K. A. Delahaut The honeylocust has become an increasingly important street and landscape tree in Wisconsin. Finer textured and less form...

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  • Gypsy Moths: Selecting a Pesticide for Gypsy Moth Control
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    Gypsy Moths: Selecting a Pesticide for Gypsy Moth Control

    Author(s) R. Chris Williamson, Andrea Diss Many insecticides are available to control gypsy moth; however, not all are created equal. Before you b...

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  • Gypsy Moths: Identifying and Managing Gypsy Moth Egg Masses
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    Gypsy Moths: Identifying and Managing Gypsy Moth Egg Masses

    Author(s) R. Chris Williamson, Andrea Diss Gypsy moth egg masses contain all the eggs a female moth produces. Each destroyed egg mass represents h...

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  • Gypsy Moth
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    Gypsy Moth

    Author(s) R. Chris Williamson This fact sheet covers the highly destructive gypsy moth, detailing its life cycle, the destruction it causes, and t...

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  • Russian Olive Disorder: Phomopsis Canker
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    Russian Olive Disorder: Phomopsis Canker

    Author(s) G. L. Worf, J. S. Stewart Russian olive (Elaeagnus angustifolia) is a small tree with beautiful, silver-gray foliage. The tree was once ...

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  • Preserving Trees During Construction
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    Preserving Trees During Construction

    Author(s) Stan Binnie Home construction can easily damage or even kill prized and valuable landscape trees. Learn the simple steps of safely prote...

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  • Oak Disorder: Twolined Chestnut Borer
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    Oak Disorder: Twolined Chestnut Borer

    Author(s) C. F. Koval, M. F. Heimann Oak trees that are dying from the top down or exhibiting drought-like symptoms may be infested with the twoli...

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  • Mountain Ash Disorder: Sunscald-Fungal Canker Complex
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    Mountain Ash Disorder: Sunscald-Fungal Canker Complex

    Author(s) M. F. Heimann, G. L. Worf Physical damage to the trunk—caused by sunscald or even lawn mower damage—opens the way for a fungal infection...

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  • Mountain Ash Disorder: Scab
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    Mountain Ash Disorder: Scab

    Author(s) M.F. Heimann, G.R. Stanosz, G.L. Worf Mountain ash scab is not always a serious problem in Wisconsin, but in wet years it can reach near...

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  • Mountain Ash Disorder: Fire Blight
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    Mountain Ash Disorder: Fire Blight

    Author(s) M.F. Heimann, G.L. Worf Fire blight sometimes causes dramatic and serious damage, blackening leaves and either the vegetative shoots or ...

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  • Maple Petiole Borer
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    Maple Petiole Borer

    Author(s) P. J. Pellitteri, D. L. Mahr The maple petiole borer is an introduced species that has extended its range from the northeastern states t...

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  • Maple Gall Mites
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    Maple Gall Mites

    Author(s) P. J. Pellitteri, C. F. Koval, D. L. Mahr Maple leaves frequently develop growths or swellings known as galls. These are caused by micro...

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  • Maple and Other Trees Disorder: Cottony Maple Scale
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    Maple and Other Trees Disorder: Cottony Maple Scale

    Author(s) C. F. Koval, D. L. Mahr, P. J. Pellitteri Cottony maple scale is an insect that can infest the twigs of maples and other shade trees wit...

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  • Tree and Shrub Fertilization
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    Tree and Shrub Fertilization

    Author(s) E. R. Hasselkus, E. E. Schulte Explains what fertilizer you should use and how you should apply it to your deciduous trees, evergreens, ...

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  • Sooty Mold
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    Sooty Mold

    Author(s) M. F. Heimann, G. L. Worf, P. J. Pellitteri Sooty mold can be found on virtually any plant in the state. Nearly all shade trees and ever...

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  • Selecting, Planting, and Caring for Your Shade Trees
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    Selecting, Planting, and Caring for Your Shade Trees

    Author(s) E. R. Hasselkus Learn about the importance of planting new trees, shrubs and cultivars. Explore variety selection, and appropriate plac...

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