Disease Index of the Rust Puccinia psidii on 'Ohi'a in Hawai'i

Abstract

This rust disease of the native Meterosideros polymorpha and some other species has become a serious threat to Hawaii's forests since its first occurrence in 2005. The publication illustrates the symptoms and provides directions for assessing its severity and recording and reporting observations of it. Symptoms not associated with the rust are shown. A form for reporting observations is included.