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Table 1 Toxicity of spiromesifen and spirotetramat on second instar larvae of cotton leaf worm, S. littoralis

From: Biochemical characterization of spiromesifen and spirotetramat as lipid synthesis inhibitors on cotton leaf worm, Spodoptera littoralis

Concentrations Percent of mortalities Slope values± SE LC50 and fiducial limits
Insecticides C1 C2 C3
Spiromesifen 51.7 ± 2.9a 38.3 ± 2.9a 21.7 ± 2.9a 1.35 ± 0.3 170.1 (81.3–184.1)
Spirotetramat 60 ± 8.7a 41.7 ± 2.9a 28.3 ± 2.9b 1.39 ± 0.3 53.7 (42.2–77.3)
F values 2.5ns 2.2ns 8.1*
LSD 14.6 6.5 6.5
  1. C1: first concentration (recommended field rate), C2: second concentration (1/2 recommended field rate), C3: third concentration (1/4 recommended field rate)
  2. Means under each variety sharing the same letter in are not significantly different at P < 0.05