Table 2 Toxicity of the Cyt1Aa-BinA chimeric strain of Bacillus thuringiensis subsp. israelensis 4Q7/Cyt1Aa-BinA or Lysinibacillus sphaericus (Ls) wild type strain to 4th-instars of Culex quinquefasciatus at 24 versus 48 hours post treatment.

From: Highly Effective Broad Spectrum Chimeric Larvicide That Targets Vector Mosquitoes Using a Lipophilic Protein

Bacterial Strain

LC50 (Fiducial Limits)a

LC95 (Fiducial Limits)a

Slope

24 hours

 Ls 2362 (BinAB)

218.7 (158.5–308.0)

2,548.5 (1,396.8–6,667.3)

1.5 ± 0.2

 Bti 4Q7/ cyt1Aa-binA (Cyt1Aa-BinA chimera)

6.5 (3.3–13.0)

38.5 (11.0–174.6)

2.1 ± 0.5

48 hours

 Ls 2362 (BinAB)

19.5 (14.7–25.9)

90.5 (61.5–160.3)

2.5 ± 0.3

 Bti 4Q7/ cyt1Aa-binA (Cyt1Aa-BinA chimera)

5.8 (2.7–12.5)

31.0 (7.6–151.8)

2.3 ± 0.6

  1. ang/ml.
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