Coffee Leaf Rust Found on Molokai

By Catherine Cluett Pactol
A pathogen devastating for coffee plants has been confirmed on Molokai among wild coffee plants. The Hawaii Department of Agriculture (HDOA) detected coffee leaf rust (CLR) on June 14 during a survey of feral coffee in Kaunakakai. Further surveys detected more CLR on the east side of the island. The disease is now found on all major Hawaiian Islands.
CLR is a devastating coffee pathogen first discovered in Sri Lanka in 1869. It can cause severe defoliation of coffee plants, and both the leaf and berry growth can be affected and greatly reduced. Long-term impacts of CLR includes severe dieback, with crop losses ranging from 30 to 80 percent, according to HDOA.…