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  • Fall Webworm on Trees

    … Fall webworm in black cherry tree. Photo: Bruce Watt, University of Maine, Bugwood.org … which they enlarge as they grow. Look on the south side of tree crowns for the first sign of webbing.  The  webs may … rarely consume enough terminal growth to affect the tree. The first generation begins in May and is usually …

  • Serviceberry: An Early-Flowering Maryland Native Tree

    … May 14, 2024 About Serviceberry Amelanchier spp. Deciduous tree or large shrub Maryland Distribution: Native habitat … and Mountain regions and grows as a short-trunked small tree or multi-stemmed shrub with a vase-like form.   … have attractive early spring flowers, edible fruits (similar to blueberries), and brilliant orange-red …

  • Key to Common Problems of Tomatoes

    … leaves. Photo: J. Traunfeld, UME Updated: June 18, 2025 Tomatoes are the most popular plant grown in home vegetable … that can disrupt their growth, productivity, and/or eating quality. Use this picture guide (or the table below … noticeable during drought Animals ( birds , squirrels , groundhogs , deer ) Common Spots on fruit Tiny spots or …

  • What's Wrong with my Colorado Blue Spruce Tree?

    … and progressively speed up the decline of this popular tree. Rhizosphaeria needle blight on blue spruce. Needle Cast … symptoms will continue to spread upward and around the tree. Branches will decline and die after 3-4 years of … years of defoliation and symptom progression up the tree. The dark fungal fruiting bodies may be hard to find …

  • Spotted Lanternfly (SLF) II - Scouting and Management

    …   Applications targeted for grape berry moth and Japanese beetles in mid-summer will be effective in managing nymphs in …

  • Branching Out - Winter 2026

    … in Your Woodlands" looks at the Japanese Angelica Tree. And don't forget the events calendar and the Brain … University of Massachusetts Amherst: Reforestation Guide: Tree Planting to Enrich, Restore, and Adapt Northern Forests. … occidentalis Daniel Pratson The humble common hackberry tree (Celtis occidentalis) , sometimes referred to as a …

  • San Jose Scale

    … ), prune-type plums ( Prunus domestica ), and other tree fruits. Nut trees and several fruiting shrubs (those with … on Woody Plants: an IPM approach. Third Edition, revised. Tree Care Industry Association. Pest Predictive Calendar A …

  • Native Trees of Maryland: The Pawpaw, Asimina triloba

    … Maryland’s Exotic Treat Pawpaws, prized for their tasty fruits, produce the largest native fruit in North America. Their fruits, about the size of an avocado, are described as a … levels of essential amino acids. This small understory tree (10-40’ tall), might be a fun and fitting option for …

  • Root Rots on Trees and Shrubs

    … appear annually or hard shelf-like structures that grow a new layer each year as the rot progresses. As a result of … root rot and annosum root rot.  Procerum root rot  appears to be associated with trees and shrubs planted in heavy, wet, … wood become spongy and develop resin pockets that ooze sap when punctured. Resin may also ooze through the bark at the …

  • Squirrel Damage on Trees and Shrubs

    … Updated: February 28, 2023 The eastern gray squirrel is a tree-dwelling rodent that feeds on a wide variety of foods such as tree fruits, garden vegetables, seeds, nuts, buds and young …