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

Egyptian Journal of Biological Pest Control

Table 6 Efficacy of emamectin benzoate, lambda-cyhalothrin and indoxacarb at LC₂₅ and LC₅₀ values against P. rapae 4rd instar larvae after different time intervals

Treatments	% Mortality of 4th 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 b	16.00 bc	40.00 c	60.00 bc	92.00 ab
Emamectin benzoate	4.00 b	12.00 bc	28.00 d	56.00 c	84.00 bc
Indoxacarb	4.00 b	8.00 c	20.00 d	44.00 d	68.00 d
	LC₅₀
Lambda-cyhalothrin	16.00 a	36.00 a	80.00 a	100.00 a	100.00 a
Emamectin benzoate	4.00 b	20.00 b	56.00 b	68.00 b	88.00 bc
Indoxacarb	4.00 b	16.00 bc	48.00 bc	68.00 b	80.00 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
\({\text{Mortality}}\;{ }\left( \% \right) = \frac{{{\text{Number }}\;{\text{of }}\;{\text{dead }}\;{\text{larvae }}}}{{{\text{Total }}\;{\text{number }}\;{\text{of }}\;{\text{larvae}}}} \times {100}\)