Table 1.

Effect of inoculation date on crown dieback, survival, and height growth following Ophiostoma inoculation, for all 14 elm clones combined.

Years after inoculation	Crown dieback (%)			Survival (%)			Height growth (cm)
	Inoculation date^z			Inoculation date			Inoculation date
	1		2	1		2	1		2
1	24	**^y	16	92		96	—		—
2	19	**	13	89	*	94	—		—
3	17	**	10	88	*	94	—		—
4	17	**	10	88	*	94	—		—
5	16	*	10	88	*	94	—		—
6	16	*	10	87	*	94	222^x	**	268^x
7	16	*	10	87	*	93	—		—
Overall	18	*	11	88	*	94

↵^z Inoculation date 1 = May 18, 1992; inoculation date 2 = May 27, 1992.
↵^y Single and double asterisks indicate significant difference at 0.05 and 0.01 levels, respectively. The absence of asterisks indicates nonsignificance.
↵^x Height growth for the 6 years following inoculation.