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

Brown, Spotted, or Patch Grass on Lawn

Rust Disease

Rust disease first appears as small, yellowish-orange to reddish-brown flecks on grass blades and eventually grows into raised pustules on blades and stems.

Spotting on Leaf

Shot Hole Disease

Shot hole is a leaf disease that produces brown spots on plant foliage that eventually dry out, fall and leave multiple holes in the leaf.

Mold or Fungus

Split Gill Fungus

Split gill fungus can be found in almost every corner of the world. The fruiting bodies look like small saucers or fans and can be found on living or dead trees.

Substance on Leaf or Oozing

Spotted Lanternfly

The spotted lanternfly is an invasive insect species native to Asia. This insect’s eggs are laid in masses about 1” long and may look like patches of crusted mud. Hatched nymphs are black with white dots. Adults are about 1” long with gray forewings that have black spots.

Brown, Spotted, or Patch Grass on Lawn

Spring Dead Spot In Bermudagrass

Spring Dead Spot (SDS) is a common turf disease that is caused by the fungi Ophiosphaerella herpotricha and O. korrae. The disease creates dead or dying brown patches of turf that vary in diameter depending on the severity of infection.

Leaf or Needle Discoloration

Winter Moth

The male fringe-winged winter moth is often seen in homes and around lights and holiday decorations in December and January. This invasive pest arrived in the U.S. and Canada from Europe.

Pest And Disease Chicken Of The Woods Banner 1440X500

Trunk or Bark Damage

Chicken Of The Woods Mushroom

Chicken of the woods is an edible mushroom with a texture and taste that is said to resemble chicken. The fruiting bodies tend to have many shelves, and can be found up a tree trunk or as a cluster at the base of a tree.

Pest And Disease Deadman Fingers Banner 1440X500

Mold or Fungus

Dead Man's Fingers Fungus

Dead man’s fingers is a fungal pathogen that grows in small towering groups of three to six mushrooms and resemble fingers coming out of the ground.

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