Evaluation of local isolates of entomopathogenic nematodes for the management of black cutworm, Agrotis ipsilon Hufnagel (Lepidoptera: Noctuidae)

Egyptian Journal of Biological Pest Control

Table 2 Percentage mortality (mean ± SD) of Agrotis ipsilon larvae exposed to different isolates of entomopathogenic nematodes, at three different concentrations of infective juveniles (IJs) in plastic containers at 25 ± 1 °C

EPNs^a	Mortality rates (%) (mean ± SD) of Agrotis ipsilon larvae*
	1st day			2nd day			3rd day			4th day
	25 IJs/cm²	50 IJs/cm²	100 IJs/cm²	25 IJs/cm²	50 IJs/cm²	100 IJs/cm²	25 IJs/cm²	50 IJs/cm²	100 IJs/cm²	25 IJs/cm²	50 IJs/cm²	100 IJs/cm²
FLH-4-H	8 ± 5Aa	18 ± 9Ba	20 ± 8Ba	95 ± 10Aa	100 ± 0Ba	100 ± 0Aa	100 ± 0Ba	100 ± 0Aa	100 ± 0Aa	100 ± 0Aa	100 ± 0Aa	100 ± 0Aa
216-H	3 ± 5Aa	5 ± 10Aa	8 ± 9Aa	90 ± 8Aa	100 ± 0Bb	100 ± 0Ab	100 ± 0Ba	100 ± 0Aa	100 ± 0Aa	97 ± 5Aa	100 ± 0Aa	100 ± 0Aa
E76-S	8 ± 5Aa	8 ± 5Aa	10 ± 8Aa	83 ± 9Aa	83 ± 12Aa	90 ± 11Aa	90 ± 8Aa	90 ± 11Aa	97 ± 5Aa	93 ± 5Aa	98 ± 5Aa	98 ± 5Aa

^*Mean values followed by different uppercase letters in the same column and mean values followed by different lowercase letters in the same line are statistically different according to Tukey’s test (P ≤ 0.05)
^aFLH-4-H: H. bacteriophora, E76-S: S. carpocapsae, 216-H: H. indica, MGZ-4-S: S. bicornotum