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  • Aronia

    … is looking at control options, but until now, few exist. Japanese Beetle ( Popillia japonica ) is present from … control in the spring means less pesticides in the summer. Japanese Maple Scale has been noted in several orchards last … (Rust Scab) – Look for aphids on fresh growth – Watch for Japanese Beetles – Watch for Brown Marmorated Stink Bug July …

  • Armored Scale - Trees and Shrubs

    … and treatment Appearance Photo: Lorraine Graney, Bartlett Tree Experts, Bugwood.org Mature female covers are rounded, … trees include peach ( Prunus persica ) and other stone fruits plus flowering cherry ( Prunus ), white mulberry ( … infestations cause premature needle drop and eventual tree death (even for mature plants). Life cycle There are 2 …

  • Spots on Honeycrisp Apples: What are They and How to Differentiate Them?

    … of physiological disorders that can develop both on the tree as well as during storage, but only some of them are … shortage of calcium, the stability and integrity of these fruits’ cell walls is greatly diminished. In addition to … practices that contribute to increased fruit size and tree vigor should be taken with caution in Honeycrisp, due to …

  • 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

    … May 14, 2024 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 …