Hawaii Coffee Association

Coffee Leaf Rust in Hawaii

Aloha HCA Members and Friends,

This week USDA has officially confirmed the identification of Coffee Leaf Rust (CLR) on leaf samples discovered on Maui. There is a tentative finding of CLR at a residence in Hilo on the Island of Hawai'i, which awaits official confirmation by USDA.

The HCA board hosted an emergency multi-agency meeting on Wednesday with a broad spectrum of researchers, regulators, congressional staff and industry stakeholders. The group has identified short and long term strategies and work continues on a broad spectrum of action items. Numerous working groups have been formed and those professionals and volunteers will continue to meet, plan and take action to preserve and build resiliency into Hawaii’s coffee industry.

Hawaii Coffee Association Webinar 

Coffee Leaf Rust in Hawaii

An HCA team is developing a webinar to share information about Coffee Leaf Rust. Please stay tuned or check our website for details as they become available.

In the light of the current events, we encourage all Coffee Growers to carry USDA crop insurance. Coffee Leaf Rust is a covered cause of loss. Here is a flyer that summarizes the program and provides cost and coverage examples with Coffee Tree specific information highlighted.

It is easy to apply for coverage for both coffee trees and cherry production. For help with the application process or any other crop insurance related questions, reach out to Bonnie at Lind Insurance Services at, 888-276-7728 toll-free or 559-285-8973 cell phone (call or text).

Coffee Leaf Rust has been officially confirmed by USDA to be on Maui and has tentatively been found on Hawaii Island. Please see the HDOA press release for more information.

Growers, please scout your farms for any symptoms of coffee leaf rust. Here is my website and a poster that provides information and images of the disease on coffee trees.

If you suspect coffee leaf rust on any island, you can call HDOA's Plant Pest Control Branch at (808) 973-9525.

If you have questions about rust, the control of rust, or preventative treatments for this disease, you are welcome to contact me at You can also text me at (415) 604-1511.

Coffee Leaf Rust Sanitation Protocol 
(Adopted from Rapid Ohia Death Protocol and provided by USDA-ARS)

As a precaution, please adopt the following decontamination protocols regardless of where you are
surveying/gathering materials.

Decontaminate before AND after you survey/collect samples. Never go from a suspected affected site to another site without cleaning your shoes, tools, and vehicle (when possible).

Tools and shoes should be cleaned with 70% rubbing alcohol solution after removal of any surface debris. Correctly label a spray bottle with a Sharpie pen as “70% isopropyl alcohol - Flammable”. Fill the spray bottle with isopropyl alcohol. Always take this bottle with you in any field vehicle for use after all field activities. Store in the vehicle in such a manner that it does not spill.

A freshly prepared 10% solution of chlorine bleach and water can be used as long as tools are oiled afterward, as chlorine bleach will corrode metal tools.

Clothing should be machine washed with detergent in hot water. Heat dry in a dryer as well, if possible.

Vehicles used in infected areas should be thoroughly cleaned; power washing is recommended.

Please be careful of the alcohol and bleach, and follow all label precautions to prevent damage to your eyes, skin, respiratory system, clothing, and equipment.

- Andrea Kawabata
We will keep you informed on the most important news surrounding this situation via email. If you wish to see more updates, please check the News section of our website.

Stay well,

Christopher A. Manfredi
Hawaii Coffee Association
Copyright © 2020 Hawaii Coffee Association, All rights reserved.

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