Low-Cost Scale Control on Hedge Shrubs with Horticultural Oil

Renter discovers white puffy shells covering hedge trunks/limbs. Fears spread to adjacent shrubs. Budget constrained.

Scale Identification

Immobile, shell-covered insects sucking stem juices. Shell blocks contact insecticides.

Inexpensive, Effective Solution

• Horticultural oil: SunSpray (hose-end) or biorganic oils. Smothers scale.
• Application: Pump sprayer, drench entire shrub inside and out until dripping.
• Schedule: Weekly for 3-4 weeks.
• Confirmation: Dead scale dislodge with moderate hose pressure.

Spread Prevention

Treat all three shrubs simultaneously. Oil is cheap, safe, and effective. No need for costly replacements or professional service.