Table 3 Aphid percentage reduction of aphid, Macrosiphum rosae, on rose plants leaves treated with the four tested indigenous and one commercial Beauveria bassiana

0.1% v/v

(2.3 × 10⁶/ml)

Naturalis

27.32 ± 7.32^A

55.05 ± 3.97^A

68.57 ± 2.39^A

78.33 ± 3.19^A

80.24 ± 2.65^A

Isolate 1

16.07 ± 9.23^A

57.57 ± 7.57^A

64.53 ± 8.32^A

72.41 ± 6.95^A

72.14 ± 7.13^B

Isolate 2

17.50 ± 9.66^A

55.89 ± 5.05^A

61.84 ± 7.90^A

72.62 ± 6.04^A

75.68 ± 3.79^AB

Isolate 3

26.97 ± 9.65^A

53.13 ± 10.83^A

67.23 ± 9.93^A

72.31 ± 5.44^A

77.51 ± 5.27^AB

Isolate 4

25.72 ± 12.22^A

54.69 ± 11.81^A

67.34 ± 5.05^A

70.30 ± 6.34^A

77.51 ± 5.92^AB

0.2% v/v

(4.6 × 10⁶/ml)

Naturalis

60.89 ± 9.52^B

83.41 ± 2.72^B

91.81 ± 2.37^B

96.30 ± 3.39^B

98.58 ± 1.26^C

Isolate 1

58.57 ± 13.68^B

82.09 ± 3.98^B

91.58 ± 4.20^B

95.67 ± 4.28^B

97.47 ± 1.26^C

Isolate 2

53.39 ± 15.08^B

83.05 ± 4.51^B

91.14 ± 1.18^B

95.24 ± 4.36^B

98.58 ± 1.73^C

Isolate 3

58.75 ± 11.40^B

81.97 ± 6.25^B

89.45 ± 6.60^B

96.62 ± 3.33^B

97.97 ± 1.86^C

Isolate 4

62.68 ± 12.39^B

86.06 ± 4.21^B

90.01 ± 3.90^B

96.62 ± 1.80^B

98.18 ± 3.16^C

9.062

14.543

15.294

19.716

25.781

< 0.001

< 0.001

< 0.001

< 0.001

< 0.001