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  • Tree Problems Caused by Excess Water

    … Flooded tree that was planted too deeply. Photo: William Fountain, … with similar water requirements together. View Planting a Tree or Shrub to ensure proper planting height. Conduct a test to …

  • Key to Common Problems of Dogwoods

    … dogwood (Cornus florida) is a relatively small flowering tree that is popular in Maryland home landscapes. Although it … uptake by the roots.  Leaf scorch alone rarely kills a tree but it can weaken the tree or can make it more … an occasional pest of dogwoods. They are  mostly seen on shrub dogwoods  - e.g., silky dogwood  ( Cornus amomum) 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 …

  • Invasive Tree Control

    … WW, G, C&P/S, C&G - see key below Empress or princess tree (Paulownia tomentosa) Highly valued in Asia, here its … typical of maples, are horizontal rather than hanging. Leaves turn yellow in late fall. Its shade-tolerant seedlings … with desirable native trees. Long compound leaves resemble walnut, but walnut bark is coarse and fissured. Its smooth …

  • Identifying Common Household Insect Pests

    … in identifying household insects Proper identification is the first step prior to managing any pest. Submit photos and … firewood storage, using a dehumidifier are some examples of management techniques to help reduce or eliminate an … are not exposed to degradation by temperature changes, wind, rain, soil microorganisms, etc. Identification key for …

  • Valuable Resources for "The Woods in Your Backyard"

    … Maps Brush Piles Buy Seedlings from State Nurseries Chosen Tree Release Aerial Photos and Topographic Maps For Maryland … invasive plants of southern forests: a field guide for identification and control  (Southern Research Station USDA … Alex X., Virginia Tech Pub. 426-702, 2009.  Tree and Shrub Planting Guidelines .  Appleton, B.L., and S. …

  • Japanese Beetles on Trees, Shrubs, and Flowers

    … Park, MD. 1992. Rev. 2/2011, 5/2020 Related information Identification of Grubs in Lawns White Grub Management on …

  • Azaleas and Rhododendrons: Identify and Manage Problems

    … rhododendrons Rhododendrons and azaleas offer a wide range of flower colors in the spring and are one of the most popular landscape plants … such as burlap or plastic, can also lessen winter wind damage by reducing wind velocity. Diseases of azaleas …

  • Rose: Identify and Manage Problems

    … are prone to numerous diseases and pests, most commonly black spot , Cercospora leaf spot, aphids , and sawflies . … usually caused by high soil pH.  Iron Diseases of roses Black spot Cercospora leaf spot Downy mildew Powdery mildew … Rose Rust Rose mosaic disease Gray mold (Botrytis blight) Black spot   Black spot symptoms appear as dark lesions that …

  • Powdery Mildew Disease on Trees and Shrubs