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… Updated: October 17, 2024 Galls are unusual growths on tree leaves or branches. They are caused by insects. They are … are abnormal swellings of plant tissue, usually on leaves and twigs. Insects, mites, bacteria, fungi, or nematodes may … 2020 Related information Eyespot Galls on Trees … Tree and Shrub Galls …

… be removed from the planting site and composted. Remove old mulch and replace it with a fresh layer of mulch in the … in your area. Learn more about black spot disease and how to manage it. Cercospora leaf spot   Cercospora leaf spot … may be caused by different types of viruses including Apple Mosaic Virus (AMV) and Prunus Necrotic Ringspot Virus …

… Other susceptible spruces include black, Norway, Oriental, and white. Colorado blue spruce trees are no longer … than younger ones. The disease often proceeds up the tree destroying branches and the tree’s ornamental symmetry. … also spread by wind and insects to other trees. Additional problems are also often visible on stressed and diseased …

… autumn leaf colors. Visited by hummingbirds and large butterflies. Summersweet (Clethra alnifolia) Locally native …

… categorized as either armored (hard) scale or soft scale , and this distinction determines the damage they can cause and … also blocks most contact insecticides from touching the insect itself. Typical wax colors are brown, gray, or white, … in their cover are dead Photo: Lorraine Graney, Bartlett Tree Experts, Bugwood.org Chemical If you do not wish to use …

… the first step prior to managing any pest. Submit photos and questions to Ask Extension if you need assistance. In … in-ground or in a gray papery sphere attached to house, tree, or shrub. Yellowjackets : tend to be a problem late summer into …

… disease problems Pear, Asian Pyrus pyrifolia Asia Fruits 2-3 years after planting; susceptible to fireblight Pear, … at pollination than European honey bees. There are over 4,000 North American native bee species, and many are … and the crown (where stems emerge from the roots) is 1-2 inches above the soil. The diameter of the planting hole is …

… Traunfeld, UME Updated: May 16, 2024 Proactive plant care can support a fruit tree or shrub through many years of … and reduce fruit production. Watering Small fruit plants have shallow, fibrous roots that are vulnerable to drought … levels are reported as “optimum”, “high”, or “excessive,” you can fertilize with nitrogen-only fertilizers. Adding more …

… J. Traunfeld, UME Updated: February 28, 2025 Outdoor yard and garden tips Sustainable Gardening Reconsider spraying … Mulch should be applied 1-3 inches deep and kept away from tree and shrub trunks.   If you planted new trees and shrubs this …

… C. Carignan, UME Updated: December 23, 2025 Outdoor yard and garden tips Sustainable Gardening Consider dividing and … help.   Many different types of  leaf and stem galls  are present. Galls are abnormal swellings of plant … to deter mosquitoes from outdoor porches. Disease Southern blight , a significant soil-borne disease, is promoted by hot …