In the efforts to prevent a quarantinable strain of Ralstonia from entering the United States, USDA-APHIS has changed importation rules for rose material for planting. This includes rose material coming from Canada.
Under the new federal order, roses (Rosa spp.) grown in Canada must now have been grown entirely within Canada or the U.S.. This includes root stock and graft material.
This is to reduce a potential pathway for Ralstonia solanacearum Race 3 biovar 2 (Rs R3bv2) into the U.S., which can devastate solanaceous crops such as potato and tomato, as well as geraniums.
Read on for more details about RS R3bv2 and the new export regulations.
Continue reading “Growing Roses? Export Rules to the U.S. Have Changed.”