Risk Analysis for Phytophthora ramorum Werres, de ... - USDA APHIS
the importation and domestic spread of Phytophthora ramorum ... The large number of hosts in multiple plant families, differential susceptibility, ... estimates that address all of the relevant ecological components; ... shipments of host materials exported to the United States, and must sample and test plants. Télécharger Risk Analysis for Phytophthora ramorum Werres, de ... - USDA APHIS pdf
