**DRAFT LIST FOR DISCUSSION** SON PEST LIST OF PLANT NEMATODES OF REGULATORY CONCERN  TO THE UNITED STATES (Updated April 29, 2002)  With suggested priority ratings for complete risk assessments (PRAs) by APHIS -- H =High; M = Moderate; L = Low Priority; [*] = currently on the APHIS  Regulated Pest List (http://www.aphis.usda.gov/ppq/regpestlist/) Table 2.  Nematodes with limited distribution in the USA
No.	Nematode	Available Information Sources				Proposed Working Group Rating
		DPI Cir	CIH Data	CAB CPC	Other
1	Globodera rostochiensis	X	X	X	-	[*]
2	Heterodera carotae	X	X	-	-	M
3	Heterodera goettingiana	X	X	X	-	M
4	Heterodera zeae	X	-	X	-	M
5	Meloidogyne mayaguensis	-	-	X	-	M
6	Meloidogyne naasi	-	--	-X	--	L
7	Nacobbus aberrans	X	-	X	-	H
8	Radopholus similis	X	X	X	-	M
9	Zygotylenchus guevarai	-	X	X	-	L