Following on from the thread started by Coximus. However hard you try, sometimes things work against you...I treated half my flock with Clikzin last weekend, then overnight there was heavy rain. Will this have made the treatment ineffective? What would be the effects of over-treating if I treated them again this week? They were sheared 4 weeks ago.
The plan was to treat with Cliczin now (as OH bought a huge bottle last year

), then treat with Clik in mid July to last the rest of the year. Last year neighbours had strike really late in the season, which I wish to avoid.