The package says 200mg/colony.
The drug is administered in 3 applications
Does that mean 200mg three times or 200mg divided over three treatments?
It seems like a stupid question but I just don't know.
Do you have brood deseases? Brood area like shot gun had gone bye?
Terramysin is better to give for brood 3 time every week. The sence is, that larva + pupa take 3 weeks to develope. With 3 treatment all larvas and capped ones get antibiot.
Now it is autumn and it is rihgt time to give medicin if they need. It take 3 months to terramycin to go away from honey.
If you have much dead brood, take those frames away and burn them.