Euonymus Scale: Identify, Then Decide Treat or Replace

White specs on euonymus leaves and branches that scrape off with a fingernail are euonymus scale—a serious pest. Heavy infestations can kill the shrub.

Decision Guide

• Light infestation: Prune heavily infested branches; apply dormant oil in late winter, then target crawlers in spring with horticultural oil or systemic (Bayer Advanced).
• Heavy coverage: Remove and replace with resistant alternatives (e.g., dwarf yaupon holly, boxwood).
• Confirm ID first via Google Images or nursery visit—many products are costly.

Timing sprays to the crawler stage is critical for control.