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 Botanic Garden >> Gardening >  >> Question and Answer >> Plant Diseases

Old Mulberry with Borers: Systemic Insecticide and Fertilizer

Situation

30-year-old mulberry, half dead, bark loosening, borer holes. Stress invited borers.

Rescue

  • Bayer Advanced Tree & Shrub Insect Control (soil drench) – kills borers inside.
  • Fertilize with 10-10-10 (1 lb per inch trunk diameter) to boost vigor.
  • Remove dead wood; monitor living half.

Systemic treatment is best for large trees.

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