Sap Oozing from Apricot Tree: Borer Insect Activity

A 40-year-old apricot tree shows amber sap on branches and brown spots/blemishes on fruit at stalk attachment.

Diagnosis

The sap is a defense response to injury, typically from boring insects like plum curculio moth. The fruit spots may be related insect damage or secondary infection.

Management

Insecticides exist but are difficult to apply effectively once borers are inside. A vigorous tree tolerates borers for years. Check if full canopy spray coverage is feasible—large trees may be too tall. Consult local garden center for options. Maintain tree health with proper watering and fertilization.