Table 1. Bursaphelenchus xylophilus and B. mucronatus strains for virulence test.

Nematodes	Nematode strains	Pine hosts	Year of collection	Sampling region
B. xylophilus	ZL1	Pinus massoniana	2004	Linhai, Zhejiang
	AmA3	P. massoniana	2004	Ma’anshan, Anhui
	HE2	P. thunbergii	2004	Enshi, Hubei
	AA3	P. taiwanensis	2004	Anqing, Anhui
B. mucronatus	CFS1	P. elliottii	2005	Fushun, Sichuan
	SD1	P. massoniana	2005	Dazhu, Sichuan
	JNL10	P. taeda	2004	Nanjing, Jiangsu
	GHB3	P. massoniana	2004	Huizhou, Guangdong