Table 6 Potency of the ultraviolet protectant, UV-P for increasing the toxicity of three bioinsecticides against the 4th instar larvae of S. littoralis under field-laboratory conditions.

Dipel DF

10 g

84 ± 1.73^a

72 ± 2.31^a

42 ± 2.31^a

15 ± 2.31^a

3 ± 0.58^a

0.00 ± 0.00^a

–

55.24

Dipel DF + UV-P

10 g + 1 g

84 ± 1.73^a

81 ± 3.46^b

57 ± 1.73^b

32 ± 1.16^b

9 ± 0.58^b

0.00 ± 0.00^a

1.22

67.25

Tracer

2.5 ml

81 ± 1.16^a

66 ± 1.73^a

30 ± 1.16^c

9 ± 0.00^c

0.00 ± 0.00^c

0.00 ± 0.00^a

–

47.57

Tracer + UV-P

2.5 ml + 1 g

81 ± 1.73^a

72 ± 1.73^a

54 ± 1.73^b

30 ± 1.73^b

6 ± 1.16^d

0.00 ± 0.00^a

1.31

62.15

Diacox

3 g

100 ± 0.00^b

96 ± 2.31^c

69 ± 2.89^d

30 ± 1.16^b

9 ± 0.58^b

0.00 ± 0.00^a

–

76.98

Diacox + UV-P

3 g + 1 g

100 ± 0.00^b

96 ± 2.31^c

81 ± 1.73^e

66 ± 1.73^d

36 ± 1.73^e

12 ± 0.58^b

1.30

100