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  • Mountain Ash Disorder: Sunscald-Fungal Canker Complex
    $1.00

    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
    $1.00

    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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  • Linden Borer
    $1.00

    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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  • Honeysuckle Disorder: Honeysuckle Leaffolding Aphid
    $1.00

    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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  • Harvesting Firewood from Your Woods
    $2.75

    Harvesting Firewood from Your Woods

    Author(s) William Klase, Kris Tiles Which trees yield the best firewood? What are the steps in properly harvesting trees? How about splitting and...

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    $2.75
  • 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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  • Euonymus Caterpillar
    $1.00

    Euonymus Caterpillar

    Author(s) K. A. Delahaut In Wisconsin, the euonymus caterpillar Yponomeuta cagnagella damages the spindletree euonymus, the winged euonymus (also ...

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  • Dutch Elm Disease in Wisconsin
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    Dutch Elm Disease in Wisconsin

    Author(s) M. F. Heimann, P. J. Pellitteri, E. B. Smalley, R. P. Guries Dutch elm disease is a fatal fungus disease attacking American elms. The fu...

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  • Deciduous Tree Disorder: Cankerworms
    $1.00

    Deciduous Tree Disorder: Cankerworms

    Author(s) P. J. Pellitteri, D. L. Mahr, D. J. Hall Severe, early season defoliation of several hardwood species may be caused by spring or fall ca...

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    $1.00
  • Birch Leafminer
    $1.00

    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
    $1.00

    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
    $1.00

    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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