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 Center Oleander Caterpillar Banner 1440X500
Holes or Skeletonization in Leaves
Oleander Caterpillar
The oleander caterpillar is a bright orange, black-spotted pest that feeds on and skeletonizes leaves of the oleander plant.
Pest And Disease Pitch Canker Of Pine Banner 1440X500
Substance on Leaf or Oozing
Pitch Canker Of Pine
Pitch canker of pine is a severe fungal disease that creates numerous problems for pine trees, including yellowing and browning needles, branch death and formation of cankers.
Pest And Disease Center Scale Insects Banner 1440X500
Leaf or Needle Discoloration
Scale Insects
Scales are sap-sucking insects common on backyard trees and ornamental shrubs. These pests are mostly immobile and appear similar to shell-like bumps rather than insects.
Pest And Disease Center Spruce Spider Mites Banner 1440X500
Leaf or Needle Discoloration
Spruce Spider Mites
Ranging in color from green to orange-red, spruce spider mites are conifer-loving pests that overwinter as orange eggs at the base of needles and twigs. After hatching and molting several times, the adults mate and lay eggs. There can be six to eight generations each season, depending on temperature
Pest And Disease Tick Control Banner 1440X500
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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