Insects in the form of psyllids; whiteflies; armored scales like Florida red scales and Oriental scales; soft scales like mealybugs, brown soft scales, and black scales; aphids, black spider mites, and slugs and snails can affect Eugenias. Fungal diseases, like rust, fungal leaf spot, and dieback also affect this plant as well.

Eugenia Topiary Pests and Disease Information. When your Eugenia tree is in good health, it can resist disease and infestation quite well. However, repeated attacks, drought conditions, and other stressors may leave your tree susceptible to the following insects and diseases: Aphids; Psyllid; Thrip; Scale