Palm Scale Misidentification: Black Lines Are Not Scale

Palm Scale Misidentification: Black Lines Are Not Scale

Scale insects are match-head-sized raised bumps that scrape off leaving goo. Black lines on stems are not scale. Your Areca’s markings are natural.

If you confirm actual scale (bumps that scrape), treat with 5:1 water:alcohol + soap spray, drenching all surfaces. Otherwise, no treatment needed.