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Table 3 Effect of storage at ambient conditions for 2 years on stability of Bacillus thurigiensis formulations

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

Time

Bacillus thuringiensis

Dipel 2×

Protecto

Content a.i IU/mg

Loss %

Content a.i IU/mg

Loss %

Zero time

31,289

0

30,155

0

3 months

30,578

2.27

29,155

3.32

6 months

29,155

6.82

27,379

9.21

24 months (2 years)

26,665

14.79

23,372

22.49