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Table 2 Probit analysis data on mortality time of Xylosandrus germanus females after applications of two conidial concentrations of Beauveria bassiana TR-217 isolate on hazelnut branches and beetle females

From: Efficacy of native isolates of Metarhizium anisopliae and Beauveria bassiana against the invasive ambrosia beetle, Xylosandrus germanus Blandford (Coleoptera: Curculionidae: Scolytinae)

Variables 1 × 106 conidia ml−1 1 × 108 conidia ml−1
On branch On insect On branch On insect
LT50 (95% fiducial limit) 8.38 (7.17–11.50) a* 9.57 (7.84–15.56) a 5.96 (5.32–6.85) b 6.03 (5.41–6.87) b
LT90 (95% fiducial limit) 16.78 (12.02–37.58) a 20.30 (13.37–63.78) a 11.79 (9.50–17.45) a 10.80 (8.91–15.38) a
Slope ± SE 4.24 ± 0.92 a 3.92 ± 0.95 a 4.32 ± 0.69 a 5.06 ± 0.78 a
Regression equation y = − 3.92 + 4.24x y = − 3.85 + 3.92x y = − 3.35 + 4.32x y = − 3.95 + 5.06x
χ 2 36.89 23.95 29.61 40.78
D f 38 38 38 38
Heterogeneity 0.97 0.63 0.78 1.07
  1. *Within rows, means followed by the same lower case letters do not differ significantly