Table 1 Log-dose probit-mortality data for diflubenzuron tested against third-fourth instar larvae of Culex pipiens. *Number of larvae tested.

From: Striking diflubenzuron resistance in Culex pipiens, the prime vector of West Nile Virus

Mosquito population

N*

LC50 (95%CL)

RRLC50

Χ2 (df)§

Benaki 2013 (lab strain)

120

0.002 (0.001–0.003)

1

8.52 (10)

Ravenna 2015

600

0.065 (0.026–0.396)

32.5

16.838 (22)

Ravenna 2016

600

0.257 (0.146–0.619)

128.5

11.860 (10)

  1. Lethal concentration 50 in mg L−1 s± 95% Confidence Limits. Resistance Ratio (calculated over the Benaki strain). §Chi-square testing linearity of dose-mortality response with degrees of freedom.