Potential of Cry1Ac from Bacillus thuringiensis against the tomato pinworm, Tuta absoluta (Meyrick) (Gelechiidae: Lepidoptera)

Egyptian Journal of Biological Pest Control

Table 1 Toxicity of Cry1Ac protein from Bacillus thuringiensis to 2nd, 3rd, and 4th larval instars of tomato pinworm, Tuta absoluta

Larval stage	Slope	SE^a	χ^2b	LC₅₀ (μg/ml)	Confidence limits (95%)		LC₉₅ (μg/ml)	Confidence limits (95%)
Larval stage	Slope	SE^a	χ^2b	LC₅₀ (μg/ml)	Lower limit	Upper limit	LC₉₅ (μg/ml)	Lower limit	Upper limit
Second instar	2.13	0.56	0.10	0.12	0.07	0.16	0.63	0.40	1.72
Third instar	3.96	1.12	0.34	0.27	0.22	0.33	0.71	0.49	2.18
Fourth instar	2.10	0.63	0.17	0.43	0.30	0.65	2.64	1.29	37.4