Table 1.

Attempted isolation of Ceratocystis fagacearum from 361 branch and bole samples removed from live oaks, Spanish oaks, and shin oaks with oak wilt symptoms.

Diagnostic Status	No. Sites	No. Trees	Type of sample removed
			Branch		Bole
			Pos	Neg^{^b}	Pos	Neg
Mats or mat scars found	12	..^{^a}	..	..	..	..
C. fagacearum isolated	43	54	37	86	65	63
C. fagacearum not isolated	22	84	0	58	0	41
Total	77	138	37	154	65	105

↵a Samples were not collected when fungal mats or mat scars (stained areas) were found.
b Pos = positive; Neg = negative.