Management of Mango Hopper, Idioscopus clypealis, Using Chemical Insecticides and Neem Oil

Table 2

Percentage of efficacy of three insecticides against mango hopper.

Treatment	Percentage of population reduction
	24 h	72 h	168 h	Mean
1st spray
Imidacloprid	83.63 ± 8.91^a	89.97 ± 10.06^a	85.05 ± 10.94^a	86.22 ± 9.13^a
Endosulfan	75.79 ± 9.06^ab	72.48 ± 9.42^ab	67.47 ± 11.71^ab	71.91 ± 9.49^b
Cypermethrin	64.40 ± 10.98^b	68.23 ± 11.72^b	57.95 ± 10.20^b	63.53 ± 10.53^bc
Neem oil	48.35 ± 7.91^c	60.15 ± 10.84^b	56.54 ± 10.65^b	55.01 ± 9.89^c
2nd spray
Imidacloprid	88.79 ± 1015^a	92.50 ± 9.02^a	90.12 ± 9.85^a	90.47 ± 8.54^a
Endosulfan	80.61 ± 10.48^ab	72.48 ± 9.42^ab	69.25 ± 9.11^b	75.04 ± 9.84^b
Cypermethrin	66.77 ± 9.26^bc	70.85 ± 9.81^bc	66.30 ± 9.13^b	67.97 ± 8.43^b
Neem oil	49.54 ± 9.42^c	58.88 ± 11.81^c	57.07 ± 11.93^b	55.16 ± 10.54^c
3rd spray
Imidacloprid	88.42 ± 10.04^a	90.18 ± 9.87^a	88.65 ± 1.06^a	89.08 ± 8.69^a
Endosulfan	75.62 ± 11.17^ab	72.97 ± 10.08^ab	70.44 ± 11.84^b	73.01 ± 9.83^b
Cypermethrin	62.59 ± 11.89^bc	66.45 ± 9.19^b	60.25 ± 9.20^b	63.10 ± 9.22^bc
Neem oil	52.31 ± 10.30^c	62.12 ± 11.81^b	58.23 ± 12.90^b	57.55 ± 10.41^c
Overall percentage of efficacy
Imidacloprid	88.59 ± 8.64^a
Endosulfan	73.32 ± 9.43^b
Cypermethrin	64.87 ± 9.33^c
Neem oil	55.91 ± 9.95^d

Values sharing the same letter(s) in a column are not significantly different at 𝑃=0.05.