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
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Brown, Spotted, or Patch Grass on Lawn
Thatch
Thatch is a dense buildup of grass stems, roots and blades that accumulates between the leaf blade base and the surface of the soil.
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Tick Control
Ticks are small, wingless, bloodsucking arthropods. They burrow their heads into their host and can change drastically in shape, color and size when they become engorged with blood. Ticks have extremely small mouths that usually go unnoticed when they bite.
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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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Brown, Spotted, or Patch Grass on Lawn
Turf Grubs
Grubs are larvae of insects such as Japanese beetles, June beetles and other species that feed on grass roots in soil.
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Mold or Fungus
Turkey Tails
Turkey tail is a polypore mushroom that gets its name from the variety of colors and shape that resemble the tail feathers of wild turkeys.
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Dieback or Thinning Canopy
Twig Girdler & Twig Pruner
Twig girdlers and twig pruners are beetles that attack the twigs of trees. They lay eggs at the ends of branches and cut off the tips of the branch, allowing the larvae to feed on and pupate inside the twigs.
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Mold or Fungus
Vascular Wilt Diseases
Vascular wilt diseases are caused by different fungi that attack the vascular (water-conducting) system of trees. A tree responds by blocking its vascular system to contain the disease. In doing so, the water supply to the leaves is cut off.
Pest And Disease Verticillium Wilt Banner 1440X500
Leaf or Needle Discoloration
Verticillium Wilt
Verticillium wilt is a fungal disease that causes serious injury and often death to its host. It is caused by the fungus Verticillium dahliae and can live in the soil for long periods of time without showing any signs.
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