TABLE 1.

List of strains used in this study, with values for LC₅₀ and LT₁₀₀

P. larvae subsp. larvae strain	Yr of isolation	Genotype	Estimated LC50 (CFU ml−1 larval diet)	LT100 (days p.i.)a
				Min/ max	Mean ± SD
00-1163	2000	AB	200	7/10	8.3 ± 1.1
03-194	2003	AB	260	7/8	7.3 ± 0.6
03-200	2003	AB	550	6/10	8.8 ± 1.9
03-522	2003	AB	600	7/10	8.3 ± 1.5
03-525	2003	AB	620	7/10	8.0 ± 1.0
04-309	2004	AB	≪100	6/7	6.6 ± 1.1
01-440	2001	Ab	≪100	10/11	10.7 ± 0.6
02-113	2002	Ab	200	11/12	11.8 ± 0.4
02-120	2002	Ab	110	10/12	11.0 ± 1.0
03-159	2003	Ab	270	11/12	11.7 ± 0.6
03-189	2003	Ab	800	10/11	10.5 ± 0.5
00-087	2000	ab	≪100	11/12	11.3 ± 0.6
01-455	2001	ab	550	12/12	12.0 ± 0.0
02-130	2002	ab	500	11/13	12.0 ± 1.0
03-119	2003	ab	175	11/12	11.7 ± 0.6
03-125	2003	ab	330	11/12	11.3 ± 0.6
ATCC 9545b		aβ	200	10/12	11.3 ± 0.8

^ap.i., postinfection; min, minimum; max, maximum.

^bReference strain.