02045nas a2200157 4500008004100000245004200041210004000083260007500123520150500198100001501703700001501718700001701733700002101750700001701771856009901788 2015 eng d00aPest Alert: Phytophthora tentaculata.0 aPest Alert Phytophthora tentaculata aAlbany, CA . bPacific Southwest Research Station, USDA Forest Service3 a

Phytophthora tentaculata has been detected in several California native plant nurseries and restoration sites. These are the first detections of P. tentaculata in the USA. Phytophthora tentaculata was initially noticed in a native plant nursery causing a severe root and crown rot in sticky monkey flower, Diplacus aurantiacus subsp. aurantiacus (Scrophulariaceae) in 2012 (figure 1). Since then it has been detected in four additional nurseries in three counties in CA in addition to three restoration sites where outplanted stock was found to be infected.

1 aFrankel, S1 aSwiecki, T1 aBernhardt, E1 aRooney-Latham, S1 aBlomquist, C uhttp://www.suddenoakdeath.org/wp-content/uploads/2015/02/P.tentaculata.Pest_.Alert_.022315.pdf