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Treating Borers in Aspen Trees: Homeowner-Applied Insecticides

No Effective Home Remedies

Non‑chemical treatments do not control borers. Purchase a borer‑specific insecticide (Onyx or Dursban) from a garden center, mix with water, and spray the trunk as high as you can reach.

Application

Thoroughly wet the bark. Repeat as label directs. This is safe and easy for homeowners to do themselves, avoiding costly commercial applications.

Pests: Cherry Tree Gummosis: Peach Tree Borer Management; Replanting Weeping Cherry After Borers: Soil Treatment and Care; Apricot Borer Cleanup: Protecting Neighboring Fruit Trees; Indoor Orange Tree White Clusters: Mealybugs or Scale Treated with Neem Oil; Plum Tree Borers: Systemic Insecticide, Nematodes, and Tree Vigor; Eucalyptus Borers, Galls & Fungus: Systemic Insecticide + Fertilizer; Borers in Eucalyptus and Valley Oak: Likely Longhorn Beetles; Managing Borers in Japanese Maples: Systemic Insecticides and Tree Health; Cytospora Canker in Quaking Aspen: Managing a Treehouse Tree; Ash Tree Borer Treatment in Idaho: Can This Tree Be Saved?

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