Peach Tree Amber Resin: Borer Infestation

Thick amber resin on a productive peach tree trunk and branches is a classic sign of peach tree borers. The resin is the tree’s response to larval tunneling.

Organic Control

• Insert a sewing needle into the resin holes repeatedly to kill larvae mechanically.
• Avoid systemic insecticides if maintaining organic practices.
• Monitor for new resin flows; repeat as needed.

Tree Health

The tree is still fruiting, so it’s vigorous. Keep it well-watered and mulched to reduce stress, which attracts borers.