Trevor,
Many thanks for the Barrier description.

Must take alot of organisation and willpower to set up and maintain such
a system.

Several resulting points arise from the info supplied.
1. What has been the consequence on AFB occurrence in areas that have
applied this method of containment?

2. If AFB is chronic, is it worth setting up a control such as this,
when the relaxation of antibiotic use would usually allow AFB to raise
its ugly head in a widespread and chaotic manner?

It appears to me that many areas are so far down the systematic use of
oxytet. just to control the apparition of AFB that it would be a huge
risk to attempt to start such a procedure.

Once on the antibiotic treadmill - it would be leg breaking to step
sideways without a complete equipment change. Then in addition - if the
rest of the surrounding beekeepers are continuing as usual, what is the
point!

Peter.

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