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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