Advances in Agriculture

Research Article

Efficacy of Biorational Compounds against Mustard Aphid (Lipaphis erysimi Kalt.) and English Grain Aphid (Sitobion avenae Fab.) under Laboratory Conditions in Nepal

Table 3

Mortality of S. avenae in response to different biorational compounds at laboratory of Paklihawa Campus, Nepal, in 2018.


Treatments	Dosage	Percent mortality of English grain aphids
		Leaf spray bioassay				Leaf dip bioassay
		Hours after treatment (HAT)				Hours after release (HAR) of aphids
		24	48	72	96	24	48	72	96

T1-M. anisopliae	3 ml/1000 ml of water	26.67^c ± 3.60 (30.95)	43.33^d ± 2.72 (41.15)	55.84^d ± 2.10 (48.35)	63.33^e ± 1.36 (52.74)	21.67^d ± 0.96 (27.72)	40.00^c ± 1.36 (39.22)	53.33^c ± 1.36 (46.91)	62.50^e ± 0.83 (52.24)
T2-B. bassiana	3.3 ml/1000 ml of water	41.67^a ± 0.96 (40.20)	73.33^a ± 1.36 (58.93)	91.67^a ± 0.96 (73.30)	99.17^a ± 0.83 (86.94)	41.67^a ± 0.96 (40.20)	66.67^a ± 1.36 (54.75)	85.00^a ± 0.96 (67.24)	98.33^a ± 0.96 (84.45)
T3-V. lecanii	6 ml/1000 ml water	24.17^c ± 2.10 (29.38)	43.33^d ± 1.36 (41.16)	59.17^d ± 0.83 (50.28)	71.67^d ± 0.96 (57.85)	22.50^d ± 1.60 (28.27)	42.50^c ± 2.85 (40.66)	58.34^c ± 2.89 (49.82)	69.17^d ± 0.83 (56.27)
T4-Bt var. kurstaki	6 g/1000 ml water	28.34^c ± 0.96 (32.15)	52.50^c ± 2.50 (46.43)	69.17^c ± 2.50 (56.32)	79.17^c ± 0.83 (62.85)	29.17^c ± 0.83 (32.68)	54.17^b ± 1.60 (47.39)	67.50^b ± 0.83 (55.25)	78.34^c ± 0.96 (62.27)
T5-Azadirachtin	3.3 ml/1000 ml water	35.00^b ± 0.96 (36.26)	60.00^b ± 1.36 (50.77)	78.34^b ± 0.96 (62.27)	89.17^b ± 0.83 (70.82)	35.00^b ± 0.96 (36.26)	60.83^a ± 1.59 (51.26)	82.50^a ± 0.83 (65.29)	88.34^b ± 0.96 (70.07)
T6-Spinosad	0.33 ml/1000 ml of water	27.50^c ± 1.60 (31.59)	50.83^cd ± 1.59 (45.47)	70.83^c ± 1.59 (57.33)	80.83^c ± 0.83 (64.05)	28.34^c ± 0.96 (32.15)	50.83^b ± 1.59 (45.47)	69.17^b ± 2.10 (56.30)	83.33^c ± 1.36 (65.95)
T7-untreated control	Water	0.00^d ± 0.00 (0.39)	2.50^e ± 0.83 (8.02)	5.84^e ± 0.83 (13.85)	9.17^f ± 0.83 (17.56)	0.01^e ± 0.00 (0.52)	3.33^d ± 0.00 (11.63)	6.67^d ± 0.00 (15.82)	9.17^f ± 0.83 (17.56)

SEM		4.83	8.16	4.44	4.54	1.82	4.79	4.22	6.60
LSD		3.26	4.24	3.13	3.16	2.00	3.25	3.05	3.81
C.V. (%)		7.66	6.84	4.08	3.61	4.77	5.28	4.03	4.39

Mean in column with same subscript is not significant at 5% level of significance by DMRT. 0.001, 0.0, 0.05 of value, HAT = hours after treatment, HAR = hours after release.