Eucalyptus Borers, Galls & Fungus: Systemic Insecticide + Fertilizer

Multiple Pests on Stressed Tree

Holes = borers (longhorned beetles). Galls = wasps. Leaf spots = fungus. All indicate drought/stress.

Imidacloprid soil drench (Bayer Advanced) – kills borers & gall wasps season‑long.
Fertilize: 1 lb 10‑10‑10 per inch trunk diameter, watered in.
Water deeply during dry periods.
Monitor; borers can kill if unchecked.

Trees: Cherry Tree Gummosis: Peach Tree Borer Management; Gray Marshmallow Masses on Tree: Harmless Lichens; Plum Tree Borers: Systemic Insecticide, Nematodes, and Tree Vigor; Birch Bronze Borer: Systemic and Trunk Treatment; Borers in Eucalyptus and Valley Oak: Likely Longhorn Beetles; Borers in Cut Eucalyptus Firewood: Solarize or Split to Save the Wood; Eucalyptus Dieback After Cold: Pruning to Live Growth; Managing Borers in Japanese Maples: Systemic Insecticides and Tree Health; Twig Galls on Young Trees: Harmless Wasp Homes; Identifying "Austry Tree": Likely Eucalyptus

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