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Table 4 Efficacy of different concentrations of the entomopathogenic nematode Heterorhabditis bacteriophora (HP88) against larval instars of Agrotis ipsilon under laboratory condition

From: Efficacy of entomopathogenic nematodes against Spodoptera littoralis (Boisd.) and Agrotis ipsilon (H.) (Lepidoptera: Noctuidae)

Nematode concentrationsMean % of larval instars at different exposure times
IJs/dish2nd instar3rd instar4th instar5th instar6th instar
 24 h48 h72 hAverage24 h48 h72 hAverage24 h48 h72 hAverage24 h48 h72 hAverage24 h48 h72 hAverage
5031.1157.7773.3354.0728.8855.5564.4449.638.8873.3384.4455.5515.5531.1148.8931.8515.940.968.1841.66
10042.2275.5597.7771.8532.5544.1886.0454.2618.1847.7290.952.276.8152.278447.6913.3335.558042.96
20055.5575.5510077.0362.2273.3310078.5228.8864.4410064.4427.2754.5410060.6017.774097.7851.85
40035.5551.1110062.2222.7265.910062.8717.7773.3310063.726.6664.4410063.724.446010061.48
80082.2295.5510092.5953.3397.7710083.715.995.4510070.4558.1381.3910079.8446.6764.4410070.37
160073.3393.3310088.8955.5591.1110082.2235.5586.6610074.0744.1810010081.3942.8590.4710077.77
F value6.515.642.027.927.37
LSD18.45219.77418.54821.27417.114