Table 6. Fertility life table parameters of S. frugiperda strains fed on non-Bt maize.

FAW strain	Fertility life table parameter a
	T (days)	Ro (♀/♀)	rm (♀/♀/day)	λ
RR	35.7 ± 0.2 a	503.4 ± 27.7 b	0.17 ± 0.001 b	1.19 ± 0.002 b
SR Pooled	36.6 ± 0.1 a	697.5 ± 34.8 a	0.18 ± 0.001 a	1.20 ± 0.001 a
SS	35.5 ± 0.4 a	736.7 ± 55.6 a	0.18 ± 0.002 a	1.20 ± 0.003 a

Values within a column followed by the same letter are not significantly different for two-tailed t-tests for pairwise group comparisons (P > 0.05).

^a T = mean generation time; R_o = net reproductive rate; r_m = intrinsic rate of increase and λ = finite rate of increase.