Table 3 Mean (LT₅₀) and 90 (LT₉₀) lethal time of Metarhizium anisopliae isolates on Tetranychus urticae treated at a concentration of 1 × 10⁷ conidia mL⁻¹ in the laboratory

9.7 (8.1–13.0)ab

22.2 (17.3–32.1)ab

Y =  − 0.9970 + 0.1027x

31.83

0.0000

7.7 (6.8–9.1)a

16.5 (14.0–21.0)a

Y =  − 1.1063 + 0.1441x

64.79

0.0000

7.2 (6.5–8.5)a

16.1 (13.6–20.1)a

Y =  − 1.0490 + 0.1447x

64.55

0.0000

10.0 (8.0–14.9)ab

26.0 (19.1–42.6)ab

Y =  − 0.8097 + 0.0809x

20.94

0.0000

9.9 (8.0–14.0)ab

24.1 (18.3–37.2)ab

Y =  − 0.8935 + 0.0902x

25.28

0.0000

13.2 (10.2–20.9)b

28.4 (20.7–48.3)b

Y =  − 1.1128 + 0.0842x

19.14

0.0000

11.7 (8.9–19.8)ab

29.8 (21.1–56.1)b

Y =  − 0.8226 + 0.0704x

15.52

0.0001