Field persistence of certain new insecticides and their efficacy against black cutworm, Agrotis ipsilon (Hufnagel)

Bulletin of the National Research Centre

Table 6 Residual toxicity of tested formulations against 3rd-instar A. ipsilon larvae under field conditions

Compounds	Residual effect						Mean of residual effect (%)	Lt₅₀ (days)
Compounds	Z*	3 days	6 days	9 days	12 days	14 days	Mean of residual effect (%)	Lt₅₀ (days)
Emamectin benzoate	100	86.55	64.56	25.50	19.44	–	49.013	5.59
Indoxacarb	60.0	44.59	27.45	12.50	5.41	–	22.488	1.40
Chlorantraniliprole	79.3	76.72	50.70	30.68	10.38	–	42.12	5.56