Sub-lethal effects of indigenous isolate of Spodoptera frugiperda nucleopolyhedrovirus on fall armyworm growth and reproduction in India

Egyptian Journal of Biological Pest Control

Table 3 Debilitating effect of different concentrations of SpfrNPV on fertility and fecundity and their effect were observed on the F1 generation (viz, number of eggs and number of larvae (mean ± SE) hatched

	Concentration	Percentage of infertile adults	Total number of eggs	Total number of larvae	Percentage of larvae survived
1	1.20 × 10⁷ (n = 6)	33.3	150.03 ± 10.91^c	71.11 ± 7.46^d	4
2	2.83 × 10⁶ (n = 6)	33.3	340.04 ± 15.49^b	140.33 ± 17.89^c	16
3	2.00 × 10⁶ (n = 6)	16.6	312.89 ± 20.46^b	179.11 ± 12.74b^c	23
4	1.29 × 10⁵ (n = 6)	0	297.66 ± 20.30^b	171.89 ± 3.82^bc	42
5	5.69 × 10⁴ (n = 6)	0	338.33 ± 28.59^b	227.89 ± 11.38^b	65
6	Control (n = 6)	0	474.55 ± 8.26^a	405.33 ± 18.80^a	92

Within columns, means followed by the same letter do not differ significantly [ANOVA, Tukey’s HSD; P < 0.01]