Table 3.

Cornus cultivars that showed different levels of susceptibility to spot anthracnose and Septoria leaf spot under field conditions 2001–2002.

Cornus species	Cultivar	Mean disease severity^z
		Spot anthracnose		Septoria leaf spot
		2001	2002	2001	2002
C. sericea	Cardinal	0.0 o^y	0.0 o	4.8 a	5.0 a
C. sericea	Isante	0.0 o	0.0 o	4.9 a	4.6 a
C. kousa	Lustgarten Weeping	1.5 fghij	3.7 b	0.0 o	0.0 o
C. kousa	Satomi	2.8 b	2.5 c	0.0 o	0.0 o
C. mas	Golden Glory	2.8 bc	2.2 cd	0.0 o	0.0 o
C. kousa	Wolf Eyes	2.8 b	2.3 c	0.0 o	0.0 o
C. florida	Cherokee Sunset	2.5 bcd	2.3 c	0.0 o	0.0 o
C. florida	Little Princess	2.3 bcde	1.3 def	0.0 o	0.0 o
C. kousa	Dwarf Pink	1.0 hijklm	3.3 b	0.0 o	0.0 o
C. florida	Cherokee Chief	1.4 fghijk	2.0 cd	0.0 o	0.0 o
C. florida	Rainbow	2.6 bc	1.3 def	0.0 o	0.0 o
C. florida	Pink Beauty	2.0 bcde	1.3 def	0.0 o	0.0 o
C. kousa	Spring Grove	1.8 defgh	2.0 cd	0.0 o	0.0 o
C. mas	Redstone	1.4 fghijk	2.2 cd	0.0 o	0.0 o
C. florida	Cherokee Brave	1.3ghijkl	1.3 def	0.0 o	0.0 o
C. florida	Rubra	1.9 cdefg	0.7 efg	0.0 o	0.0 o
C. florida	Purple Glory	1.8 defgh	1.0 efg	0.0 o	0.0 o
C. kousa	Emerald Star	1.0 hijklm	1.1 def	0.0 o	0.0 o
C. florida	Sterling Silver	1.6 efghi	0.3 gh	0.0 o	0.0 o
C. florida	Red Beauty	1.4 fghijk	0.3 gh	0.0 o	0.0 o
C. kousa	Agate	0.0 o	1.5 cde	0.0 o	0.0 o
C. kousa	China Girl	0.4 mno	1.3 def	0.0 o	0.0 o
LSD_(0.05)		0.8	0.8	0.8	0.8

↵^z Disease severity readings 1 = 1% to 10%, 2 = 11% to 25%, 3 = 26% to 50%, 4 = 51% to 75%, and 5 = 76% to 100% plant infection with spot anthracnose (Elsinoe corni) and Septoria leaf spot (Septoria cornicola).
↵^y Numbers followed by same letters in the same year are statistically similar at P = 0.05 according to t-tests between pairs of means calculated by Statistical Analysis Systems (SAS). Similar data were obtained in 1999–2000; data were not taken in 1998.