Scale Scale Description of Pest Description of Damage Scale may be white, yellow, brown gray or black. It looks like a hard-shelled lump on stems and leaves. It is so tightly attached that it sometimes appears to be a part of the plant. Foliage will turn yellow and leaves will drop.
Manual removal works well for small populations.
Rubbing them with a Q-tip soaked in alcohol will kill them. Insecticidal soaps kills scale in a day or two. Spray at five to ten day intervals.