Table 1.

LC₅₀ and LC₁₀ values (with corresponding 95 % confidence intervals) for Bemisia tabaci adults after 24 h of exposure to insecticide-contaminated cotton leaves. Mortality in all control groups was always below 5 %. The results are presented as LC₅₀ and LC₁₀ with corresponding 95 % confidence intervals (CI), chi-square results, degree of freedom (df) and regression equations.

	Imidacloprid	Bifenthrin	Chlorpyrifos	Carbosulfan
Regression equations	y=2.660+1.464x	y=1.932+1785x	y=0.878+1.631x	y=-0.184+1.861x
χ² (df)	1.8617(4)	0.8544 (3)	0.8944 (3)	0.6225 (3)
LC50 (ppm) 95% CI	39.60	52.35	337.04	632.22
	33.19-48.11	45.68-62.40	280.59-420.81	537.25-765.53
LC10 (ppm) 95% CI	5.28	10.02	55.18	128.37
	3.63-7.01	7.14-12.89	38.69-71.52	95.81-160.23