Table 1. Analysis of mortality difference among different generations of B. tabaci nymph against I. fumosorosea.

B. tabaci	4d			8d			14d
	0	4	7	0	4	7	0	4	7
F1	6.4 ± 1.1 a	22.8 ± 1.9 a	48.8 ± 1.8 a	15.6 ± 0.5 a	43.8 ± 1.2 a	74.3 ± 0.3 a	21.1 ± 1.2 a	50.5 ± 0.9 a	82.1 ± 0.9 a
F3	8.4 ± 0.7 a	19.8 ± 1.6 a	40.5 ± 2.0 a	17.6 ± 0.6 a	40.9 ± 1.0 a	73.8 ± 0.5 a	22.1 ± 1.1 a	49.1 ± 1.7 a	80.1 ± 0.8 a
F5	5.4 ± 1.7 a	19.1 ± 4.2 a	43.3 ± 1.9 a	14.7 ± 2.4 a	41.4 ± 1.1 a	72.3 ± 1.1 a	19.7 ± 1.9 a	50.5 ± 1.5 a	78.7 ± 0.9 a
F, df, P	1.549, 2, 0.287	1.370, 2, 0.324	4.811. 2, 0.057	0.994, 2, 0.424	2.319, 2, 0.179	2.240, 2, 0.188	0.694, 2, 0.536	0.398, 2, 0.688	4.046, 2, 0.077

Note: Means ± SE in the same column followed by different letters are significant different (Tukey’s, a = 0.05). 0, 4, 7 mean the concentration of fungal conidia with 0, 1 × 10⁴, 1 × 10⁷ conidia/ml, respectively. F1, F3 and F5 mean the No. 1, 3 and 5 generation of B. tabaci nymph, respectively.