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Table 3 Toxicity values of DL3 and DL4 isolates to 4th nymphal instar of S. gregaria using leaf dipping technique

From: Phylogenic and antagonistic characteristics of novel Bacillus cereus isolates against desert locust, Schistocerca gregaria Forskal (Orthoptera: Acrididae)

Isolate N Slope (SE) LC50ab χ2 (df)c 95% FL Toxicity indexd
DL3 180 2.44 (0.37) 73 × 106 b 3.07 (3) 55 × 106–92 × 106 2.7
DL4 180 1.9 (0.33) 2 × 106 a 3.6 (3) 1 × 106–3 × 106 100
  1. N refers to total number of insects in treatment
  2. aLC50’s reported in CFUs
  3. bLC50’s followed by the same letter are not significantly different based on overlap of their 95% Fiducial limits (P < 0.05)
  4. cL.R. chi-square goodness-of-fit values. Tabular values at P = 0.05 for 3 df = 7.81
  5. dToxicity index (Sun 1950) = (LC50 of the most efficient compound (as standard)/LC50 of the other tested compound) × 100