Best Management Practices for Native Plant Nurseries<\/h2>\n<\/header>\n\n![\"Cans\"](\"https:\/\/wpcdn.web.wsu.edu\/wp-puyallup\/uploads\/sites\/687\/2015\/03\/cans-396x297.jpg\")
<\/a>Many of the plants that are grown in the PNW forest and native plant nurseries are hosts for P. ramorum.<\/em> In addition to the economic impact that nurseries would suffer if P. ramorum<\/em> was to be detected, the movement of infected plant material from these nurseries would likely result in the introduction of the pathogen into forest or natural sites. This may have significant economic and\/or ecological impacts.<\/p>\nThere are a number of phytosanitary measures that native plant nurseries can take to minimize the risk of inadvertently introducing P. ramorum<\/em> or other Phytophthoras<\/em> into a nursery site. Given the continued spread of P. ramorum<\/em> inoculum from ornamental nurseries into nearby waterways, one of the keys is to treat any water that is used from streams or lakes for irrigation.<\/p>\nAnother key is to be very careful about the plant material that is brought into the nursery and inspect new shipments closely for symptoms, especially if they are coming from an area where P. ramorum<\/em> is established.<\/p>\nNative plants used in restoration sites are at risk for spreading P. ramorum<\/em> into forests if they are infected. It is important to be aware of the source of irrigation water for these plantings.<\/p>\nPhytophthora and other diseases can spread in residual soil and plant material in pots that are re-used. Pots can be treated with disinfectants or heat to kill these organisms.<\/p>\n
California Society for Ecological Restoration Quarterly Newsletter Summer Volume 26, Issue 2<\/a> has these two articles:<\/p>\n“Nursery Plants as a Pathway for Plant Pathogen Invasion” by Susan J. Frankel, Kathy Kosta, and Karen Suslow<\/p>\n
“Solarization: A Simple and Low-Cost Method for Disinfesting Horticultural Containers” by Karen Suslow and Kathy Kosta<\/p>\n
A <\/strong>Phytophthora tentaculata Pest Alert<\/a><\/strong><\/em> is now available.<\/strong> P. tentaculata<\/em> is an emerging pathogen in California native plant nurseries and restoration plantings.<\/p>\nSo far, P. ramorum<\/em> has not escaped into the natural environment in the PNW except for in streams associated with positive nurseries and landscapes. Research on the amount of inoculum needed in water for infection, susceptibility and sporulation potential of plant hosts, and other topics will help us determine the level of risk to our forests. In the meantime, it pays to be cautious when working with host plants.<\/p>\nPhotos of native plant nursery best (and worst) management practices<\/p>\n
There are a number of phytosanitary measures that native plant nurseries can take to minimize the risk of inadvertently introducing P. ramorum<\/em> or other Phytophthoras<\/em> into a nursery site. Given the continued spread of P. ramorum<\/em> inoculum from ornamental nurseries into nearby waterways, one of the keys is to treat any water that is used from streams or lakes for irrigation.<\/p>\n Another key is to be very careful about the plant material that is brought into the nursery and inspect new shipments closely for symptoms, especially if they are coming from an area where P. ramorum<\/em> is established.<\/p>\n Native plants used in restoration sites are at risk for spreading P. ramorum<\/em> into forests if they are infected. It is important to be aware of the source of irrigation water for these plantings.<\/p>\n Phytophthora and other diseases can spread in residual soil and plant material in pots that are re-used. Pots can be treated with disinfectants or heat to kill these organisms.<\/p>\n California Society for Ecological Restoration Quarterly Newsletter Summer Volume 26, Issue 2<\/a> has these two articles:<\/p>\n “Nursery Plants as a Pathway for Plant Pathogen Invasion” by Susan J. Frankel, Kathy Kosta, and Karen Suslow<\/p>\n “Solarization: A Simple and Low-Cost Method for Disinfesting Horticultural Containers” by Karen Suslow and Kathy Kosta<\/p>\n A <\/strong>Phytophthora tentaculata Pest Alert<\/a><\/strong><\/em> is now available.<\/strong> P. tentaculata<\/em> is an emerging pathogen in California native plant nurseries and restoration plantings.<\/p>\n So far, P. ramorum<\/em> has not escaped into the natural environment in the PNW except for in streams associated with positive nurseries and landscapes. Research on the amount of inoculum needed in water for infection, susceptibility and sporulation potential of plant hosts, and other topics will help us determine the level of risk to our forests. In the meantime, it pays to be cautious when working with host plants.<\/p>\n Photos of native plant nursery best (and worst) management practices<\/p>\n![\"Cans\"](\"https:\/\/wpcdn.web.wsu.edu\/wp-puyallup\/uploads\/sites\/687\/2015\/03\/cans.jpg\")
<\/a>Many of the plants that are grown in the PNW forest and native plant nurseries are hosts for P. ramorum.<\/em> In addition to the economic impact that nurseries would suffer if P. ramorum<\/em> was to be detected, the movement of infected plant material from these nurseries would likely result in the introduction of the pathogen into forest or natural sites. This may have significant economic and\/or ecological impacts.<\/p>\n