The bumps can be easily lifted or scraped off. Scale insects suck plant juices. Whiteflies Little moth-like insects that fly in small clouds, when the plant is disturbed. Mostly found on undersides of the leaves. A black mold can develop.
Whiteflies suck plant juices.
Earthworms Surface soil is disturbed and lumpy. Tunnels are evident in root ball when plant is removed from pot. Earthworms in the root ball may damage potted plants by disturbing roots and grinding the soil into too fine a condition for healthy growth. Spider Mites Grayish or yellowish pepper-and salt speckling of leaves. Fine webbing may be present on undersides of leaves.