List of Exotic Nematode Plant Pests (Updated August 19, 2003)  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 Table 2.  Nematodes with limited distribution in the USA
No.	Nematode	Available Information Sources				Proposed Working Group Ranking* (*see note)
		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	Radopholus similis	X	X	X	-	M
7	Zygotylenchus guevarai	-	X	X	-	L