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… Other susceptible spruces include black, Norway, Oriental, and white. Colorado blue spruce trees are no longer … branches and the tree’s ornamental symmetry. The most common symptoms of spruce include lower branch die back with … and eliminate breeding sites for bark beetles. Alternative plant selections for replacement of diseased spruces If you …

… Princess tree. Photo by T. Davis Sydnor, The Ohio State University, … . In the case of this issue’s feature, Princess tree was first imported from China to Europe and then to … colonize areas that have been burned or defoliated due to insects such as spongy moths. How does it spread? Princess …

… food and shelter. Most feed on free-living or wood-boring insects. Some, like the flickers, get most of their insects … trees may attract insects as well as porcupines or tree squirrels. These feeding wounds may also serve as … off. Occasionally limb and trunk girdling may kill the tree. Woodpeckers also communicate with each other by …

… Updated: October 17, 2024 Key points Armored scale are insects that have a hard, shell-like covering over their … and treatment Appearance Photo: Lorraine Graney, Bartlett Tree Experts, Bugwood.org Mature female covers are rounded, … infestations cause premature needle drop and eventual tree death (even for mature plants). Life cycle There are 2 …

… Present-day goldenrain tree at Monticello. Photo courtesy Thomas Jefferson … accuracy of historical records. The arrival of goldenrain tree, however, is better documented — at least as far as one … Bill Hubick, Maryland Biodiversity Project Goldenrain tree fruits. Photo by Rebekah D. Wallace, University of Georgia, …

… 17, 2024 Key points Considered pests, scale are sucking insects that consume sap or plant cell contents. They are … insecticides. What is scale? Scale are small soft-bodied insects that cover themselves with layers of either flexible … in their cover are dead Photo: Lorraine Graney, Bartlett Tree Experts, Bugwood.org Chemical If you do not wish to use …

… Key points to help in identifying household insects Proper identification is the first step prior to managing any pest. … in-ground or in a gray papery sphere attached to house, tree, or shrub. Yellowjackets : tend to be a problem late summer into …

… available at a uniform rate over the entire season. Many tree and shrub fertilizers are a combination of slow-release … the soil. Broadcast the fertilizer on the area under the tree, beginning near the trunk to the drip line (ends of the … and don’t fertilize within 10 to 15 feet of waterways.  Tree dripline Liquid deep root feeding This is a popular …

… Zoning announces the reopening of its “Spread Your Leaves” tree coupon program to help residents expand forested areas … at participating nurseries for a discount up to $50 per tree for up to six trees. At checkout, residents will … areas, how to identify and control invasive plants and insects, and about news and regional online and in-person …