My Phrag. hirtzii seems to be developing some small black spots on some of the leaves. They don't appear to be spreading particularly fast or be particularly virulent, but I would like to spray the plant to prevent them from spreading and possibly prophylactically spray the neighboring plants as well (Phrag. pearcei). They are small and dry, so I assume some form of fungal spotting:
I have used copper fungicides - Phyton 27 (copper sulfate pentahydrate) and/or Bonide (copper octanoate) - on my paphs many times in the past without any adverse reactions. Generally, I really like copper since it is very effective and very broad spectrum. I am comparatively very new to phrags though and have never had to spray them. I know they have a reputation for being more sensitive. Are copper fungicides phrag safe (obviously when used as directed ), or will they burn?
If not, any suggestions on an alternative would be appreciated. Thanks!
I have used copper fungicides - Phyton 27 (copper sulfate pentahydrate) and/or Bonide (copper octanoate) - on my paphs many times in the past without any adverse reactions. Generally, I really like copper since it is very effective and very broad spectrum. I am comparatively very new to phrags though and have never had to spray them. I know they have a reputation for being more sensitive. Are copper fungicides phrag safe (obviously when used as directed ), or will they burn?
If not, any suggestions on an alternative would be appreciated. Thanks!