Scale on Sago Palm: Comprehensive Non-Toxic Treatment Options

Scale on sago palm (Cycas revoluta) appears as tiny translucent bumps maturing to hard brown shells on stems and leaf undersides. Honeydew stickiness is the obvious sign. Treatment requires thorough, repeated coverage:

Effective Non-Toxic Sprays (Choose One)

• Brand X Foliage Cleaner (silicon-based, penetrates crevices) — Southwest Plantscape Products, 1-800-333-7977.
• Rubbing alcohol mix: 1 part alcohol : 8–10 water + dish soap.
• Horticultural oil: Sun Spray Ultra Fine, per label.
• Hot Pepper Wax: Cayenne-based, per label. www.hotpepperwax.com
• Neem oil: Dilute with water + Pine Sol (for odor), per label.

Critical Protocol

1. Spray thoroughly until dripping—all surfaces.
2. Repeat in 5–7 days for crawlers.
3. Inspect weekly.
4. Never apply in direct sun or high heat.

Soap sprays alone are less effective against armored scale. Persistence with oil/silicon/alcohol works.