Egyptian Journal of Biological Pest Control

Table 3 Log-rank (Mantel–Cox) test results of the second and fourth larval instars of Thaumetopoea wilkinsoni exposed to 1 × 10⁷ and 1 × 10⁸ conidia ml⁻¹ concentrations for each isolate of GOPT-301, ORP-18, and ORP-13

From: Efficacy of Beauveria bassiana and Metarhizium brunneum isolates against the pine processionary moth, Thaumetopoea wilkinsoni Tams, 1926 (Lepidoptera: Notodontidae)

Groups	Control		GOPT-331		ORP-18		ORP-13
Groups	χ²	p	χ²	p	χ²	p	χ²	p
Second instar
Control			58.912	0.000	68.071	0.000	87.650	0.000
GOPT-331	58.912	0.000			0.140	0.709	3.622	0.057
ORP-18	68.071	0.000	0.140	0.709			2.289	0.148
ORP-13	87.650	0.000	3.622	0.057	2.089	0.148
Fourth instar
Control			52.764	0.000	56.641	0.000	74.176	0.000
GOPT-331	52.764	0.000			2.494	0.114	14.467	0.000
ORP-18	56.641	0.000	2.494	0.114			4.417	0.036
ORP-13	74.176	0.000	14.467	0.000	4.417	0.036

X² Chi-square test, p significant

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