Compatibility of entomopathogenic nematodes with insecticides against the cabbage white butterfly, Pieris rapae L. (Lepidoptera: Pieridae)

Egyptian Journal of Biological Pest Control

Table 5 Efficacy of emamectin benzoate, lambda-cyhalothrin and indoxacarb at LC₂₅ and LC₅₀ values against P. rapae 3rd instar larvae after different time intervals

Treatments	% Mortality of 3rd instar Pieris rapae larvae at time intervals post treatments
Treatments	One day	Two days	Three days	Four days	Five days
	LC₂₅
Lambda-cyhalothrin	4.00 ab	20.00 b	48.00 bc	80.00 b	96.00 ab
Emamectin benzoate	4.00 ab	16.00 bc	36.00 cd	64.00 c	88.00 bc
Indoxacarb	0.00 b	8.00 c	24.00 d	44.00 d	64.00 d
	LC₅₀
Lambda-cyhalothrin	12.00 a	32.00 a	80.00 a	100.00 a	100.00 a
Emamectin benzoate	4.00 ab	24.00 ab	60.00 b	76.00 bc	92.00 abc
Indoxacarb	4.00 ab	20.00 b	52.00 b	68.00 bc	84.00 c

Reported numbers represent means of 5 replicates
Different letter(s) in the same column represent significant differences (P ≤ 0.05) according to Tukey`s multiple range test
\({\text{Mortality }}\;\left( \% \right) = \frac{{{\text{Number }}\;{\text{of }}\;{\text{dead}}\;{\text{larvae}}}}{{{\text{Total}}\;{\text{number }}\;{\text{of }}\;{\text{larvae}}}} \times {100}\)