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  • Flowering Dogwood

    … Additional resources Flowering Dogwood | Maryland Biodiversity Project gallery and distribution map Compiled …

  • Growing Dwarf Citrus

    … and subtropical regions of the world where they thrive with warm temperatures, high humidity, and sandy, slightly … nitrogen. Look for a fertilizer that has nitrogen in a 2-1-1 or 3-1-1 nitrogen-phosphorus-potassium (N-P-K) ratio. You … vein. Photo: Ria Malloy, University of Maryland Extension Brown soft scale insects along the midvein on the underside …

  • 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

    … oak, hackberry, poplar, dogwood, linden, and flowering fruits. Twig pruners are also native longhorned beetles. They …

  • Branching Out - Winter 2024

    … and learn about upcoming webinars. Our new feature, "Native Trees of Maryland," looks at the state tree: the white oak.  "Invasives in Your Woodlands" looks at the non-native (but some say delicious) wineberry. And don't forget … their natural areas, how to identify and control invasive plants and insects, and about news and regional online and …

  • Landscape Management Basics

    … at a maximum depth of 3" and never against the trunk of a tree. Maintain even soil moisture.  Prevent weed growth and … root zone can extend out 2 to 3 times the height of the tree, well beyond the dripline. Check the depth of soil … dead plants. Rake up and dispose of diseased leaves and fruits. Clean up and compost garden debris in the fall. …

  • 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 …

  • Invasives in Your Woodland

    … maple (Vol. 24, no. 3 - Fall 2016 - updated 2025) Golden bamboo (Vol. 24, no. 4 - Winter 2016) …

  • 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

    … The Brown Marmorated stinkbug is a newly introduced pest to the Mid-Atlantic area and can be distinguished from … been demonstrated. Spined soldier bugs are sold for the control of Mexican bean beetle (MBB), but as pointed out … have large bristles on tip of abdomen. Found at: http://mint.ippc.orst.edu/tachparadult_lg.htm …