After 8 inches of rain this week in my part of Oklahoma, yellow leaf spot is everywhere! Trying a local grow shop formulation of sulphur treatment and hoping for the sun! This problem hammered me last July during a similar wet spell, taking out 5 big plants over a torturous month and a half. The spotting is literally everywhere on the elms and mulberry trees, as well. A couple of skunks and the Royal Kush seem to be resisting the problem the most successfully. If anyone has any treatment advice for outdoor, in the ground, plants, I'm all ears. There is no way to use fans at their location and I have defoliated as best I can to open up air flow. I have also been using Biosafe's Zerotol and Oxyphos regularly.
leaf septoria
- Thread starter mandocat
- Start date
thumper60
Well-Known Member
Copper fungicide has worked for me get on it quick.
Already hit it with a sulphur based fungicide. I'll be doing that next.
CWF
Well-Known Member
Got everything but some sativas a few years ago, down in a little low place where there was lots of sun but little wind... up on the hill in the breeze a couple hundred yards away - only a few got it, all indicas. Hawaiian Snow ignored it, but didn't finish before Dec frost. Bad season for me. Hate that shit. Copper, they said, but - it was too late.
Thanks! Yes, I'm kind of leery of using copper. I'm using a non copper sulfur based treatment. The most important treatment, the sun, finally came back out!