Table 5 Effect of insecticide-treated jute bags on mortality of Rice Weevil, Sitophilus oryzae.

7 days

Malathion

67.8 ± 1.1^a

60 ± 6.6^a

68.9 ± 1.1^a

2.77

0.140

Spinetoram

53.3 ± 3.8^bA

40 ± 1.9^bB

50 ± 3.3^bA

6.847

0.028

Lambda-cyhalothrin

45.5 ± 1.1^b

41.7 ± 1.6^b

43.3 ± 5.7^b

0.155

0.860

Control

0.0 ± 0.0^c

1.1 ± 1.1^c

1.1 ± 1.1^c

0.500

0.630

F value

53.573

66.722

83.332

–

–

P value

< 0.0001

< 0.0001

< 0.0001

–

–

14 days

Malathion

76.6 ± 5.1^a

71.1 ± 1.1^a

74.4 ± 2.9^a

0.488

0.636

Spinetoram

62.2 ± 2.9^b

52.2 ± 4.8^b

61.1 ± 4.0^ab

1.872

0.233

Lambda-cyhalothrin

61.1 ± 1.1^b

52.2 ± 4.4^b

58.8 ± 4.0^b

3.701

0.090

Control

0 ± 0^c

2.2 ± 1.1^c

1.1 ± 1.1^c

1.500

0.296

F value

137.852

75.225

93.996

–

–

P value

< 0.0001

< 0.0001

< 0.0001

–

–

21 days

Malathion

60 ± 6.6^a

80 ± 6.6^a

84.4 ± 1.1^a

1.906

0.229

Spinetoram

40 ± 1.9^b

58.8 ± 2.4^b

65.5 ± 5.5^b

4.088

0.076

Lambda-cyhalothrin

41.7 ± 1.6^b

67.7 ± 5.5^ab

58.8 ± 4.0^b

3.146

0.116

Control

1.1 ± 1.1^c

2.2 ± 1.1^c

1.1 ± 1.1^c

0.333

0.729

F value

434.72

85.413

89.125

–

–

P value

< 0.0001

< 0.0001

< 0.0001

–

–