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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

    … 6, 2023 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

    … develop on the lower leaves, usually when the first fruits begin to form. Septoria leaf spot is caused by a … the environment. No action needs to be taken. Symptoms on fruits - blotches or discolored areas Blossom end rot Blossom … Occasional   Wilting/stunting of plants next to a walnut tree Walnut wilt Uncommon Leaves with holes Tiny holes in the …

  • 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

    … but know they are in the area, scouting for and monitoring Tree-of-Heaven (TOH) or other hosts (Sumac, Sycamore, Black … in the fall the adults will heavily congregate on stems of Tree of Heaven and grapevines (figure G).   Sooty mold … woodlots is likely. Population Management Utilizing Tree Wraps/Banding The immature SLF does not fly, so they …

  • Soft Scales on Trees and Shrubs

    … , especially star magnolia ( Magnolia stellata ), cucumber tree ( Magnolia acuminata ), lily magnolia ( Magnolia …

  • Root Rots on Trees and Shrubs

    … eventually browning. Dying needles usually remain on the tree. The bark and wood become spongy and develop resin … Resin may also ooze through the bark at the base of the tree and exposed roots become resin soaked. Trees planted in … decayed tissue. This root decay contributes to wind thrown tree damage and leaning trees after heavy storms. Reddish …

  • Western Maryland Regional Fruit Meeting

  • 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 …

  • Thrips and Tree Pollen in Vegetables

    … September 14, 2021 By Gerald (Jerry) Brust Thrips and Tree Pollen in Vegetables At times growers may be surprised … been feeding on pollen—not pollen from the vegetables, but tree pollen such as pine. A recent study in Georgia found … they may be having thrips problems on any early season fruits or vegetables please email me at jbrust@umd.edu or …