Table 7 Toxicity index and relative potency levels of the bioinsecticides used alone and combined with UV-P against S. littoralis, 4th instar larvae under field- laboratory conditions.

From: Synergistic activity of sunlight protectants on some biocontrol agents as a new approach to control the cotton leaf worm, Spodoptera littoralis (Boisduval)

Compounds used

B (Estimate)

Std. Error

Wald χ²

P-value

Predicted Mortality (%)

(Intercept)

− 0.57

0.20

8.20

0.004**

–

Dipel DF (Ref)

–

–

–

–

36

Dipel DF + UV-P

0.32

0.22

2.10

0.147

43.8

Tracer

− 0.21

0.25

0.72

0.396

31

Tracer + UV-P

0.18

0.23

0.62

0.431

40.5

Diacox

0.60

0.24

6.18

0.013*

50.7

Diacox + UV-P

1.13

0.25

20.45

0.000***

65.2

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