hazeman1911
Well-Known Member
Maaannneee dry earlier in the year now in Michigan back to 90" humidity yea. Sodium bicarbonate ...... Yea .... Copper sulfate...... No. What works ......every few years!!!lol
Septoria!!!!!
- Thread starter hazeman1911
- Start date
Its hitting me hard in Oklahoma! Using a homemade sulfur solution, ( with NO copper), and that has halted its progress for now. I should have started preventative spraying in June. Looks like another year where some stuff won't go as long as I would like. Probably lose a plant or 2 as well. Gotta love outdoor growing!
SmichiganOG
Well-Known Member
thumper60
Well-Known Member
Yes sir you do.
These 2 plants won't make, I'm pretty sure.
thumper60
Well-Known Member
Boy that is tough I haven't had to battle it in 7 yrs since we went legal an no longer grow in swamps. Now I can get preventive sprays on at regular times I use a copper fungicide once a week right up to flower havent seen it in 7 yrs.
Preventative spraying is key, for sure, But I personally won't use copper. I should have started spraying in June, not July. Hopefully, lesson learned.
hazeman1911
Well-Known Member
where you located approximately. Trying to pinpoint what's bring it in weather wildfires etc
SmichiganOG
Well-Known Member
It gets in the soil I understand. I have a red oak tree that gets it most every year. I'm in southern Michigan.
thumper60
Well-Known Member
Iam in maine long bouts of wet humid rainy weather brings it on for me but with simple preventive sprays before one sees it was worked 100% for me. One other important thing is never touch another plant after working on one with black spot it spreads by spores on ya hands keep alcohol to wash hands between plants.
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OKlahoma. We had a wet July and then the heat hit. Perfect conditions for it to form. It is ambient. It is on most of the plants out here to one degree or another, there is no way to avoid it. Some of my strains have it and seem much less affected than other strains. This is the 3rd out of the last 5 summers that it has emerged. Last summer was a drought and it did not appear.
thumper60
Well-Known Member
Have you tried copper? I have never used sulfur because i found copper to work before I ever heard of sulfur. Copper has been a game changer for me as far as PM, MOLD, an black spot. But as the story goes once one can see black spot its all down hill from there gota get it early.
I will not use copper because it will accumulate in the cannabis and I do not wish to consume copper in any form. Sulfur has worked in the past if I get ahead of the problem. I have noticed that certain strains are much more resistant to septoria than others, so those are the ones I will concentrate on breeding with for outdoor growing. Some summers here are very dry, and there are few fungal issues. This one went from drought to wet very quickly and caught me off guard. I have also noticed that almost all the new growth is spot free, since I began spraying, so we will see. It is always a race against something in late flower when you grow outdoors!
thumper60
Well-Known Member
Where did you read that about copper? Its a surface spray just like sulfur both can build up in soil if over used but have never read anything about it building up inside a plant. Both are meant to be used only outdoor an only in veg. Water washs it off the surface of the plants thats why one needs to reapply after rains. Please show me iam wrong.
The Health Benefits of Copper Sulfate
Copper sulfate is an inorganic compound used primarily to kill fungi and bacteria in crops. Learn more about the health benefits.
I lose lots of vegetables and cannabis to "the nature tax"' as I call it, because I spray vey little of anything on my garden. My way isn't "right", its just where I am personally, in trying to figure this all out. I'm older, I garden more for the activity than the production.We all choose what level of potential toxins in the environment we will expose ourselves to, and while copper sulfate is approved for many agricultural uses, it also poses toxicity issues. Additionally , cannabis is a bioaccumulator, meaning it can pull up heavy metals and other toxins from the soil. I try to minimize the inputs in my plants, cannabis and vegetable, hoping it lowers the buildup of the various heavy metals, pcbs, and other toxins in my body throughout my lifetime. Of course we still get exposed to microplastics, mercury and multitudes of toxins regardless, throughout our lives. You are not wrong, everyone does their best to manage the risks they take. Here is an article on cannabis and bioaccumulation. https://purecraftcbd.com/blogs/news/what-is-hemp-bioaccumulation-and-what-does-it-mean-for-me#:~:text=Hemp is considered a bioaccumulator,various substances from the soil.&text=As a bioaccumulator, hemp can,all parts of the plant.The Health Benefits of Copper Sulfate
Copper sulfate is an inorganic compound used primarily to kill fungi and bacteria in crops. Learn more about the health benefits.www.verywellhealth.com
thumper60
Well-Known Member
Nobody is right or wrong I have done a bit of reading on copper its very safe to use in veg state it is not systemic just like sulfur, It can build up in soil just like sulfur if not used correctly I thought you might have some insight on something i didnt know, both are considered very safe if used with half a brain. By the way Iam 64 in 8 days no youngster.