Age Stage Two-Sex Life Table Reveals Sublethal Effects of Some Herbal and Chemical Insecticides on Adults of Bemisia tabaci (Hem.: Aleyrodidae)

Table 3

Results of 𝑡-test analyses showing differences between the age-specific female life table and the age-stage two-sex life table in estimation of life table parameters of B. tabaci.

Treatments	The intrinsic rate of increase (r)		The finite rate of increase (λ)		The net reproductive rate (𝑅0)		The mean generation time (T)
	𝑃	𝑡	𝑃	𝑡	𝑃	𝑡	𝑃	𝑡
Control	0.661	0.449	0.655	0.457	0.492	0.707	0.774	0.293
Pymetrozin	0.670	0.434	0.633	0.486	0.048	2.126	0.317	1.040
Neemarin	0.773	−0.293	0.807	−0.249	0.353	−0.958	0.798	0.262
T. polium	0.679	0.425	0.266	1.162	0.011	3.019	0.905	0.122
C. procera	0.556	−0.602	0.590	−0.550	0.016	−2.700	0.919	0.103
Th. vulgaris	0.643	0.475	0.604	0.533	0.008	3.183	0.491	0.710
F. parviflora	0.526	0.652	0.499	0.696	0.124	1.644	0.936	0.082