Table 3.

The LT₅₀ determination and summary of probit analysis to determine LC₅₀ and LC₉₀ concentrations of Beauveria bassiana strains against the third instar of Tuta absoluta larvae in 10 days post incubation

	LT50 (mean ± SE)
	AAUB03	AAUB29	AAUB28	AAUB76	AAUB59	AAUB39	AAUB19	AAUB90
Spores·ml-1
104	3.33± 0.58a	5.33 ± 0.58c	3.33± 0.58a	5.67 ± 0.58cd	5.00 ± 1.00c	3.67 ± 0.58ab	3.33 ± 0.58a	5.00 ± 1.00c
106	2.33± 0.58a	2.57 ± 0.51a	2.50± 0.00a	2.83 ± 0.29ab	2.93 ± 0.12ab	2.17 ± 0.29a	2.33 ± 0.29a	4.00 ± 0.00c
108	1.93± 0.12a	2.00 ± 0.00a	2.20± 0.35a	2.33 ± 0.29a	2.50 ± 0.50ab	2.00 ± 0.35a	2.00 ± 0.62a	3.17 ± 0.29c
Summary of probit analysis
LC50	5.3 × 103	6.5 × 104	1.5 × 103	9.3 × 104	1.1 × 105	1.8 × 104	1.8 × 103	2.6 × 103
95% FL	1.3 × 103 –7 × 104	2.2 × 104–1.5 × 105	8.6 × 102–4.9 × 103	9.9 × 103–1.3 × 104	2 × 104–3.3 × 105	3.9 × 103–6 × 104	1 × 103–6.1 × 104	1.2 × 103–3.1 × 104
LC90	2.8 × 105	1.7 × 106	2.9 × 105	1.6 × 106	1.8 × 107	1.6 × 107	7.6 × 105	1.2 × 107
95% FL	2.1 × 105 –6.3 × 106	6.3 × 105–1.1 × 107	1.9 × 104–2.9 × 106	1.8 × 105–2.7 × 107	4.2 × 106–2.8 × 108	2.2 × 106–3.1 × 108	7.1 × 104–2.1 × 107	1.5 × 106–7.3 × 108
Int ± SE	1.32 ± 0.91	4.33 ± 0.89	0.85 ± 0.83	1.16 ± 0.72	2.91 ± 0.66	1.54 ± 0.64	0.8 ± 0.75	1.19 ± 0.63
S ± SE	0.49 ± 0.18	0.9 ± 0.17	0.39 ± 0.16	0.39 ± 0.13	0.58 ± 0.11	0.39 ± 0.11	0.36 ± 0.14	0.35 ± 0.11
p value	< 0.001	< 0.001	< 0.012	< 0.003	< 0.001	< 0.001	< 0.001	< 0.001

Legends: FL, fiducial limit; SE, standard error; LT, lethal time taken to kill fifty of experimental organisms; LC, lethal concentration; Int, intercept; S, slope. The same letters in the columns (a, b, c, d, e, and f) showed the mean values without significant difference at p ≤ 0.05