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Fig Tree White Spindles: Granulate Ambrosia Beetle Borer Control

White Sticks = Borer Frass Tubes

1-inch white spindles on leafless branches = granulate ambrosia beetle (or similar borer). Push frass out as they tunnel.

Control Steps

  1. Remove/destroy dead branches.
  2. Spray trunk/branches with Merit or Onyx (borer insecticides).
  3. Fertilize 10-10-10 at 1 lb/inch trunk diameter—borers attack stressed trees.
  4. Do NOT use soil systemic (fruit tree).

Resource

NC State extension note on granulate ambrosia beetle.

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