Insect & Disease
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Signs of pests and diseases will vary from tree to tree. Search our database of pests and diseases for symptoms, damages, life cycle, management, and control information.

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Damage & Symptoms
Pest And Disease Tinder Fungus Banner 1440X500
Mold or Fungus
Tinder Fungus
Tinder fungus is a fungal species that produces large, porous fruiting bodies that often resemble a horse’s hoof. They vary in color, but are most commonly gray, black or brown. The body can be from 2-17 inches across, 1-10 inches wide and 1-10 inches tall.
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Woolly Hackberry Aphids J Douch
Substance on Leaf or Oozing
Woolly Hackberry Aphid
Woolly hackberry aphids (WHA), also called Asian woolly hackberry aphids, are an invasive species from China that are small and usually without wings. They look like fuzzy, white masses found on the underside of stems and leaves
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5369697 LGPT Japanese Maple Scale Horiz
Trunk or Bark Damage
Japanese Maple Scale
Japanese maple scale is an armored insect pest that uses piercing/sucking mouthparts to feed on plant juices.
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Pest And Disease Center Gray Snow Moldt Banner 1440X500
Mold or Fungus
Gray Snow Mold
Gray snow mold is a fungal disease that attacks turfgrass in areas where there are extended periods of snow cover. It is easier to manage if treated in a timely manner but can be fatal to turfgrass if left untreated.
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Pest And Disease Ash Whiteflies Banner 1440X500
Leaf or Needle Dropping
Ash Whitefly
Ash Whitefly is a native European and North African pest that has been harming ash, citrus and other fruit trees throughout North America (in areas such as Southern California and Florida) since the late 1980s.
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Pest And Disease Beech Leaf Disease Banner 1440X500
Wilted or Curled Leaves
Beech Leaf Disease
Beech leaf disease (BLD) is a disease that is contributing to a localized yet significant decline of beech trees.
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Pest And Disease Birch Leafminer Banner 1440X500
Leaf or Needle Discoloration
Birch Leafminer
Birch leaves develop brown, inflated blotches by mid to late spring. Leaves may be killed by small larvae inside the leaves that devour green tissues between the upper and lower surfaces.
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Pest And Disease Center Brown Patch Disease Banner 1440X500
Brown, Spotted, or Patch Grass on Lawn
Brown Patch Disease
Brown patch is a fungal disease that develops during the hot, humid conditions of summer, transforming a green lawn into one with circular brown patches a few inches to several feet in diameter. Infected grass turns a dark purplish-green before fading to light brown.
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