Diseases- Weeds- Insects & Other Problems-C100
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$0.00Colorado Blue Spruce and Other Conifers Disorder: Rhizosphaera Needle Cast
Author(s) M. F. Heimann, G. R. Stanosz Rhizosphaera needle cast occurs throughout the state of Wisconsin but infects only certain conifer species....
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$0.00Pine Disorder: Dothistroma Needle Blight
Author(s) M. F. Heimann, G. L. Worf, R. F. Patton. Dothistroma needle blight causes needle spots, discoloration, and substantial needle loss in he...
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$0.00Evergreens Condition: Seasonal Needle Drop
Author(s) M. F. Heimann, P. J. Pellitteri. Despite their name, evergreen needles do not stay green forever. Older, inner needles discolor and drop...
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$0.00Conifers Disorders: Sphaeropsis Shoot Blight and Canker
Author(s) M. F. Heimann, G. R. Stanosz Sphaeropsis shoot blight and canker, formerly known as Diplodia, is a serious disease of many pine species ...
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$0.00Colorado Blue Spruce and Other Conifers Disorder: Cytospora Canker
Author(s) M.F. Heimann, G.R. Stanosz In Wisconsin, Cytospora canker is especially damaging to Colorado blue spruce, but it also affects Norway spr...
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$0.00Pine Disorder: European Pine Sawfly
Author(s) P. J. Pellitteri, D. L. Mahr, D. J. Hall. Early season defoliation of pines in southern Wisconsin may be attributed to European pine saw...
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$0.00Spruce Disorder: Spruce Gall Adelgids
Author(s) R. C. Williamson, P. J. Pellitteri. Tiny aphid-like insects frequently cause unusual swellings called galls at or near the ends of spruc...
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$0.00Pine Needle Diseases: Brown Spot and Lophodermium Needlecast
Author(s) M. F. Heimann, G. R. Stanosz, G. L. Worf. These two, needle diseases can make Christmas trees unmarketable and can ruin the beauty of Sc...
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