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Table 4 Log probit analysis of the larvicidal activity of chloroform:methanol extract of the green berries of S. villosum on different instar larvae of S. aegypti. LC, lethal concentration; R, coefficient of regression equations.

From: Mosquito larvicidal activities of Solanum villosum berry extract against the dengue vector Stegomyia aegypti

Type of instars of mosquito larvae Period of bioassay (hours) Regression equations R 2 LC50 values (ppm) Lower and upper fiducidal limits (ppm)
First 24 Y = 29.82 + 0.820x 0.97 22.06 16.05–27.66
  48 Y = 33.16 + 0.820x 0.97 19.58 14.36–24.20
  72 Y = 31.19 + 0.923x 0.98 19.19 13.97–23.45
Third 24 Y = 29.83 + 0.820x 0.97 11.67 8.49–14.84
  48 Y = 33.16 + 0.820x 0.97 9.54 6.82–12.25
  72 Y = 31.19 + 0.923x 0.98 5.97 2.15–9.79
Fourth 24 Y = 25.98 + 0.282x 0.99 49.84 44.53–54.77
  48 Y = 31.19 + 0.256x 0.82 21.22 13.30–29.13
  72 Y = 34.53 + 0.256x 0.82 21.02 15.97–73.94