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  • Tips for Choosing Trees and Shrubs

    … This southern magnolia's blossoms and glossy foliage make it a wonderful specimen plant. But … area. Updated: March 7, 2023 Select an appropriate tree or shrub for the site Overgrown dwarf Alberta spruce blocking …

  • Fertilizing Trees and Shrubs and Nutrient Deficiency Symptoms

    … most landscapes, healthy trees and shrubs do not require fertilizers, especially when they reach their mature size. It … Never fertilize a drought-stressed plant. Fertilizer types Fertilizers are identified by a guaranteed analysis (product … fertilizers and compost These can be substituted for chemical fertilizers. Using shredded leaves (run collected …

  • FAQs: Plant and Insect Identification

    … Cost Share Assistance page . How do I distinguish one tree from another? Identifying trees is one of the greatest … . How can you distinguish a walnut tree from a tree-of-heaven? Tree-of-heaven ( Ailanthus … the United States. Its leaves are very similar to those of black walnut but have a disagreeable odor when crushed. …

  • Boxwood: Identify and Manage Common Problems

    … are typically used as foundation plantings and backdrops for planting beds, topiaries, and formal gardens. Many … location with some afternoon shade. Sites exposed to full winter sun can cause foliage to “burn” and turn orange. … or twine at the base of the plant and spiral the twine up and down the plant to hold it together and gently brush …

  • Growing Flowering Dogwood Trees

    … Flowering dogwood (Cornus florida) is a small Maryland  native tree with white or pink bracts (specialized leaves … are other native and non-native trees or multi-stemmed shrubs in the same genus as dogwood, but less commonly seen … placing mulch directly against the trunk of the tree. Pruning Routine pruning of a dogwood tree is not necessary. …

  • Pollinator Friendly Plant Production 2: Controlling Insect Pests (FS-1095)

    … Updated: June 14, 2024 By Dr. Sara Tangren , and Stanton Gill FS-1095  |  February 2020 Pollinator … hand. Neem pesticides are derived from seeds of the neem tree ( Melia azedarach –a relative of the mahogany tree). … of Massachusetts Extension. Tawny Simisky. 2018. Tree and Shrub Insecticide Active Ingredients: Alternatives to …

  • Losing Your Trees to the Sea? (FS-2022-0645)

    … be at risk from flooding and saltwater intrusion as sea levels rise (Fig. 1). Saltwater intrusion occurs when tides … Properties which contain forests of significant ecological value will be prioritized for funding. Program … Maryland Program Open Space Land is evaluated using an ecological score (based on designated “Targeted Ecological

  • Azaleas and Rhododendrons: Identify and Manage Problems

    … a deciduous shrub, is one of several azaleas native to the Mid-Atlantic area. Pinxter flower is very … and mature size Disease and insect resistant plants Pruning Watering Fertilizing Site Rhododendrons and azaleas … drier conditions than rhododendrons. Avoid planting these shrubs in poorly drained compacted soils, low areas that …

  • Conifer Bark Beetles on Trees and Shrubs

    … usually less than 8mm. They are brown to black in color and cylindrical in shape. The beetles generally attack trees … pheromone, which attracts more bark beetles to the tree under attack. Beetles often carry pathogenic fungi such … stain that are deposited in the vascular system of the tree. These fungi quickly multiply and clog the water …

  • Tree and Shrub Galls

    … The chemicals cause the affected plant cells to swell. Aphids, midges, wasps, psyllids, beetles, and eriophyid mites … not recommended. If a plant appears unhealthy, search for additional causes such as cultural problems or diseases. … of leaves for beneficial insects such as ladybird (ladybugs) beetles and their larvae, flower fly larvae, …