Physan in canada

[calvin_orchidL]

Hi everyone,

So I'm have a pretty bad case of bacterial leaf spot - I'm suspecting pseudomonas and I feel like physan spray is the best way to deal with this. I'm not sure where I can get this in Canada though, so if there are any canucks out there that know of some sources that'd be great...this is pretty much an emergency as I believe the spotting has spread to 3 plants already (an aeranthes, a latouria dend and a dend kingianum). I've tried treating with alcohol and hydrogen peroxide, but I'm not sure whether it's working, as the spots (which originally were visible from the bottom of the leaf only) have gone through the entire leaf so they are now visible on the top as well.

Any help would be appreciated! Thanks!