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Plumeria Rust

Plumeria rust, top of leaf. Photo: Dr. W Nishijima

Plumeria rust, top side of leaf
Photo: Dr. Wayne Nishijima

Problem

The leaves on your plumeria are developing yellow-orange spots.

Description

Plumeria rust is prevalent on all islands and is recognized by the powdery yellow/orange lesions on the leaves. Plumeria rust is a fungal disease that leaves powdery spores on the undersides of the leaves. Leaves can also dry up, curl, turn brown and fall off two months after fungal infection.

Plumeria rust, underside of leaf. Photo: Dr. W Nishijima

Plumeria rust, underside of leaf
Photo: Dr. Wayne Nishijima

Some cultivars are more resistant to rust.

Information

Kendal Lyon, Hawaii Island Master Gardeners