What's eating my tree kopsia?

Tree Kopsia (Kopsia arborea) is a low-maintenance tropical tree with few serious pest problems, but aphids, spider mites, and scale insects are the most likely visitors — typical of Apocynaceae family tropicals. Watch for yellowing leaves and sticky honeydew as early signs. Neem oil or insecticidal soap treats most outbreaks effectively.

Clusters on new shoot tips and leaf undersides; sticky honeydew residue, wilting growing points, and sooty mold. Blast off with a water jet; apply insecticidal soap or neem oil spray; repeat weekly until infestation clears.

Yellow speckling and leaf spotting, sometimes with fine webbing; most prevalent in hot, dry conditions. Spray foliage with water to raise humidity; apply neem oil or miticide to leaf undersides; keep plant well-watered.

Hard bumps on stems and branches; leaf yellowing and dieback as sap is depleted; sooty mold on honeydew. Apply horticultural oil at crawler stage; scrape off established scales; remove and dispose of heavily infested stems.