South Australia Primary Industries and Regions (Australia).
European and Mediterranean Plant Protection Organization.
Colorado State University Extension.
University of Georgia. Center for Invasive Species and Ecosystem Health.
USDA. APHIS. Cooperative Agricultural Pest Survey. National Agricultural Pest Information System.
CABI. Plantwise Knowledge Bank.
New South Wales Department of Primary Industries (Australia).
Western Australia Department of Primary Industries and Regional Development. Agriculture and Food Division.
Kansas State University. Cooperative Extension Service.
University of California. Statewide Integrated Pest Management Program.
Utah State University Extension.