Table 5 Estimates of the binomial distribution model of the bioinsecticides used alone and combined with Tinuvin 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 + Tinuvin P

0.53

0.23

5.30

0.021*

49.3

Tracer

− 0.21

0.25

0.72

0.396

31

Tracer + Tinuvin P

0.62

0.24

6.67

0.010**

53

Diacox

0.58

0.24

5.90

0.015*

50.7

Diacox + Tinuvin P

1.50

0.26

33.40

0.000***

74.7

Back to article page