Table 3 Different lethal times for the different control suspensions and bead formulations according to log-rank test (MV ± SE)

BS NaCl (pos. ctrl.)

4.0 ± 0.4

5.0 ± 0.2

5.0 ± 0.2

BS PVA

4.0 ± 0.4

6.0 ± 0.0

–

Control PVA

9.0 ± 2.0

–

–

BS detached

6.0 ± 0.5

8.0 ± 0.5

9.0 ± 0.6

AK

8.0 ± 0.6

10.0 ± 0.3

10.0 ± 0.5

AK BS

5.0 ± 0.4

6.0 ± 0.2

6.0 ± 0.2

S BS

5.0 ± 0.3

5.0 ± 0.3

6.0 ± 0.1

S Coat

–

–

–

S

–

–

–

Non

–

–

–