Official Pest Report

Official Pest Reports are provided by National Plant Protection Organizations within the NAPPO region. These Pest Reports are intended to comply with the International Plant Protection Convention's Standard on Pest Reporting, endorsed by the Interim Commission on Phytosanitary Measures in March 2002.

Ralstonia solanacearum race 3 biovar 2: Eradicated from U.S. Greenhouses

Country: United States


Ralstonia solanacearum race 3 biovar 2: Eradicated from U.S. Greenhouses

Erin Otto, National Policy Manager,, or 301-851-3881.


The United States Department of Agriculture’s Animal and Plant Health Inspection Service (APHIS) and its State partners have successfully completed actions to eliminate Ralstonia solanacearum race 3 biovar 2 from U.S. greenhouses. This announcement comes just two months after the pathogen was first detected in a Michigan greenhouse in April (NAPPO PAS OPR). In total, the response involved more than 650 facilities in 44 States.

R. solanacearum race 3 biovar 2 can cause a wilt disease in several important agricultural crops such as potatoes, tomatoes, peppers and eggplant. This was the first confirmed case of this pathogen in U.S. greenhouses since 2004.

APHIS continues to strengthen overseas safeguards, improve diagnostics, increase treatment options, and continually assess pathways to better protect American agriculture from this and other high-consequence plant pests and diseases.

Under IPPC standards, Ralstonia solanacearum race 3 biovar 2 is a pest that is absent and eradicated from the United States.

Posted Date: June 23, 2020, 8:01 a.m.