Top 25 Pests in Oregon

Oregon is home to a variety of different landscapes, including coastal areas, forests, deserts, and farmland. This leads to a wide variety of potential pests. Here are some of the common pests you might find in Oregon:

  1. Aphids: These small insects suck the sap out of plants and can stunt their growth.
  2. Powdery Mildew: This is a common fungal disease that affects a variety of plants.
  3. Apple Maggot: A significant pest for apple crops in Oregon.
  4. Codling Moth: These moths lay their eggs in apples, pears, and other fruit, causing significant crop damage.
  5. Slugs and Snails: These pests can eat large amounts of vegetation and can be a big problem in gardens and crops.
  6. Japanese Beetle: This invasive species is a serious pest for lawns and landscapes, feeding on the leaves of a wide variety of plants.
  7. Deer and Elk: While beautiful, these animals can be a significant pest in some parts of Oregon, eating crops and damaging landscapes.
  8. Moles and Voles: These small mammals can cause significant damage to lawns and gardens through their burrowing and feeding activities.
  9. Scale Insects: These pests can severely damage plants by sucking out their sap.
  10. Spider Mites: These tiny pests can damage a wide variety of plants by sucking out their sap.
  11. Tent Caterpillars: These caterpillars can defoliate trees and shrubs.
  12. Western Spruce Budworm: This is a significant pest in the forests of Oregon, where it defoliates conifers.
  13. Gypsy Moth: This invasive moth species can defoliate large areas of forest.
  14. Douglas-fir Beetle: This beetle is a significant pest of Douglas fir trees in Oregon.
  15. Mountain Pine Beetle: This beetle attacks and kills large numbers of pine trees.
  16. Grasshoppers: These insects can cause significant damage to crops and gardens.
  17. Cutworms: These caterpillars are a common pest in gardens and crop fields, cutting down young plants.
  18. Black Vine Weevil: This is a common pest of ornamental plants, particularly rhododendrons and azaleas.
  19. Rabbits: These animals can cause significant damage to gardens and crops.
  20. Flea Beetles: These small beetles can damage many types of plants, particularly vegetables.
  21. Leaf Miners: The larvae of these insects tunnel inside leaves, causing significant damage.
  22. Root Weevils: These insects damage plants by feeding on their roots.
  23. Stink Bugs: These bugs can be a nuisance in homes, and some species also damage crops.
  24. Bed Bugs: These pests infest homes and feed on human blood.
  25. Cockroaches: These pests can infest homes and are a significant health concern due to the diseases they can carry.

It’s important to remember that some of these pests can be managed using integrated pest management (IPM) techniques, which aim to reduce pest populations while minimizing the use of chemical pesticides. For specific pest concerns, you should consult with a local extension service or pest control professional.


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