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Table 1 Physiochemical properties of water

From: Influence of some environmental conditions on stability and activity of Bacillus thuringiensis formulations against the cotton leaf worm, Spodoptera littoralis (Boisd.) (Lepidoptera: Noctuidae)

Parameter (s)

Nile water

Ground water

Drain water

pH*

7.17

7.33

7.41

Conductivity Ms*

463

775

787

Salinity %*

0.2

0.4

0.4

Total dissolved solids (TDS) mg/l*

219

370

378

Elements (ppb)**

 Cr

N.D

N.D

N.D

 Co

N.D

25

37

 Cu

N.D

N.D

N.D

 Fe

N.D

N.D

N.D

 Mn

41

49

48

 Ni

33

40

45

 Zn

N.D

35

N.D

 Sn

29

33

42

 Cd

N.D

N.D

N.D

 Pb

N.D

N.D

N.D

 Sb

0.9

0.88

0.97

 As

N.D

N.D

N.D

  1. *Determination was conducting according to Lico et al. (1982)
  2. **Elements determination were carried out by using method of Rice et al. (2012)