Table 4 Efficacy of different biopesticides against nymphs of Bemisia tabaci on cucumber under net house conditions during autumn cropping season (2017)

Beauveria bassiana (1 × 10⁹ CFU/ml)

10

48.6 ± 2.9^c

72.1 ± 2.6^de

88.9 ± 2.2^cd

69.9 ± 11.7^a

15

50.2 ± 2.4^c

76.4 ± 2.7^cd

91.2 ± 2.6^bcd

72.6 ± 12.0^a

Lecanicillium lecanii (1 × 10⁹ CFU/ml)

10

49.7 ± 1.6^c

74.1 ± 2.9^de

90.1 ± 2.0^bcd

71.3 ± 11.7^a

15

51.6 ± 1.1^c

77.5 ± 1.8^bcd

91.5 ± 2.2^bcd

73.5 ± 11.7^a

Metarhizium anisopliae (1 × 10⁸ CFU/ml)

10

46.1 ± 1.7^c

68.2 ± 2.8^e

82.5 ± 3.3^e

65.6 ± 10.6^a

15

48.6 ± 4.0^c

71.4 ± 1.9^de

85.0 ± 2.0^de

68.3 ± 10.6^a

Neem Baan (1% W/W)

10

60.5 ± 5.4^b

81.9 ± 3.2^bc

93.3 ± 1.5^abc

78.6 ± 9.6^a

15

65.5 ± 1.7^b

84.2 ± 0.9^b

96.3 ± 0.7^ab

82.0 ± 9.0^a

Malathion 50 EC

4.0

75.6 ± 0.4^a

91.2 ± 0.9^a

99.0 ± 0.5^a

88.6 ± 6.9^a

F values

13.0

9.7

6.2

0.5

P

< 0.001

< 0.001

0.001

0.9