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  • Invasives in Your Woodland: Callery Pear (updated 2025)

    … Callerys with Bartletts would make for a blight-resistant tree. The resulting trees were studied for thirty years at a … Forest Service   Image Gallery: Callery Pear Callery pear tree. Note the characteristic V-crotch branch structure. Many …

  • Twig Girdlers and Twig Pruners on Trees

    … beetle that attacks hickory, honeylocust, persimmon, elm, oak, hackberry, poplar, dogwood, linden, and flowering … pruners are also native longhorned beetles. They attack oak, hickory, ash, maple, honeylocust, elm, linden, sweetgum, …

  • Branching Out - Winter 2024

    … feature, "Native Trees of Maryland," looks at the state tree: the white oak.  "Invasives in Your Woodlands" looks at … Educator The white oak is, without a doubt, a remarkable tree species. The tree is truly an impressive specimen where older examples are …

  • Landscape Management Basics

    … help interpreting the results. Fertilize, only as needed, to maintain vigor. Avoid over-fertilizing plants, as it can … Use drip irrigation and soaker hoses where practical.  Remove or mow weeds  Weeds rob plants of moisture and … pruning through hoeing and tilling. Don’t work with plants when foliage or soil is wet. Use  row covers  to prevent pest …

  • Cucumber Beetles: Spotted or Striped on Vegetables

    … pumpkin, muskmelon) legumes, tomato, ornamentals, and fruits, plus many other weeds and cultivated plants. Striped: … apple, pear, green beans, okra, eggplant, and potato, plus tree and shrub blossoms. Signs/symptoms Larvae eat roots and … seedlings for larvae. Inspect chewed leaves, petals, and fruits for adults (especially leaf and fruit undersides …

  • Brown Marmorated Stink Bug (BMSB) Part 1

    … In Asia, BMSB is known to attack high-value crops, such as tree fruit.   BMSB has spread and become a pest of homes and more recently fruits and vegetables in New Jersey, Maryland, Delaware, West …   BMSB is a “polyphagous” pest whose host range includes tree fruit, ornamentals, hardwood trees, and cultivated crops …

  • Common Stink Bugs of the Mid-Atlantic - Hemiptera: Pentatomidae

    … October 23, 2024 By Gerald (Jerry) Brust Common Stink Bugs of the Mid-Atlantic Hemiptera: Pentatomidae   Plant feeding (phytophagous) stink bugs: Green stink bug:  Acrosternum hilare Brown stink bug:  … Marmorated stink bug:  Halyomorpha halys Predatory stink bugs: Spined Soldier bug:  Podisus maculiventris Two-spotted …

  • Leaf Key to Common Trees in Maryland (Extension Bulletin #238)

  • Fireblight Updates – 2024

    … Dr. Christopher S. Walsh Fireblight Updates – 2024 Apple tree with fireblight - Photo credit: Chris Walsh This year’s …

  • Branching Out - Winter 2021

    … of the red fox in the  Woodland Wildlife Spotlight , and Tree-of-heaven in  Invasives in Your Woodland,  as well as … the health of your woodlands, and about a first for Tree Farm Inspectors in Maryland. Subscribe to Branching Out … and a Marylander has been chosen as the 2021National Tree Farm Inspector of the Year. Learn more >> Woodland …