Hey guys,
Brought home a clone from a dispensary the other day, was in a hurry so didn’t give it the best once over. Once I arrived home I noticed what appeared to be a small patch of PM on one of the leaves. Cut the leaf off to be safe, and put her in the tent. Noticed another small PM patch a few days later. Is there something I can spray on this to save her, or is it better to cut my losses and start over? Usually I’d toss her, but it’s been a cut I’ve had my eye on for a while and it has been somewhat hard to come by (Vanilla Frosting).
Thanks for the help!
Happy extra hour of sleep day.
1st thing I would do is to get it away from any other plants if possible. Secondly, I would get some wettable sulfur and mix it at 2 tablespoons per gallon, then dunk the entire clone in it, to treat for pm. I forgot to mention, to ph the sulfur solution to around 8.0. The higher PH will also help with taking care of the pm. I would do this treatment again after 2 weeks. If the plant is too big to do a dunk, you can spray it well with a pump sprayer or something.
Another option that I have heard of people using is Plant Therapy by Lost Coast. That can be mixed at 2 tbs/gallon and sprayed on your plant also. I would do one, or the other, not both, because it is advised to NOT use sulfur if you have used an oil based spray for at least 2 weeks. #growerslove
Good information! Thanks my man, if I decide to keep it (unlikely given comment below) I will definitely give one of your methods a try. Thanks again!
People and their dirty cuts man😖. Either the person who made it knew and sold it anyhow or the dispensary stuck it in with some that had it. Either way you can try all the stuff to save it and spray this and that but from what I have seen nothing kills it and it will keep coming back. All you can do is control it somewhat but it will come back in flower when you can’t spray and be everywhere. not to mention it will infect other plants if you have any and can stay in your grow room for a long time after. I would take it back to them and get my money back. If they give you any shit spread the word about them selling sick clones.
Definitely going to take it up with them. I have no doubt it was on there when I got home. Meaning it came from their garden. Woof.
Jms stylet oil and tweetmint absolutely kill it. These, along with consideration of your environment, will help keep it away.
Check the bottoms of the leaves, make sure those aren’t the signs of mites. Where I live, over half of the clones I see dispensaries trying to sell, have mites. For this reason, I only grow from seed or clones from my own plants.
Good point. I know the spots you’re talking about! Double checked just to be safe. Def PM, unreal though. It was a somewhat reputable dispensary, or so I thought.
Ah, that sucks! I would hit it with some
Neem oil!
The sad truth about buying clones from strangers usually means you paid for someone else’s problems. This seems to be very very common. I would trash those clones, scrub down everything and start fresh after you fix your environment. PM can only take hold under certain conditions.
Check out an ag product called JMS Stylet Oil. It kills both active infections and spores too on both PM and botrytis plus a million other things. PM is pervasive in this area, and this is the product that works. Also it turns into water within a few hours of lights on so it isn’t nasty too. Designed for use on food crops etc. OMRI too.
Yup! This will kill the invincible mycelium network running across the leaf and will kill pm down to the roots. So will tweetmint. Pm, like any plant pathogen, is to be taken seriously, but it is absolutely manageable. As Spartan and Mystro pointed out, it’s always around. There is no real way to eliminate it from our environment. The only thing you can do is create an environment that is not hospitable to it.
One thing to remember, PM is basically always around us, and like Jmystro said, if you have the right environment for it, it will show up. If you keep your environment in check, you should be fine. So first thing I would do, is figure out when/how your environment is getting out of wack. The most common time is when lights go out, if you don’t have a good dehumidifier, you will get a temp drop and a humidity spike. You can solve this with dehumidifiers and maybe even think about putting a heater in your room to make sure the temps don’t drop too low when the lights kick off.
Try to keep humidity under 55% to keep PM from coming back. Important to keep both day and night humidity under control.
Thank you. I really appreciate that advice
Thank you for the good information. Right now I am currently battling p.m. on one plant. It is in my bedroom where the humidity does tend to run a little higher. I currently have them on a 24-hour schedule so there is no lights off time at the moment. Is there anything you would recommend given these conditions? I have a good humidifier. I guess my question would be what would ideal bedroom settings be to prevent p.m.?
Veg room* not bedroom
Don’t listen to the people fear mongering about it being unkillable. PM on clones is an easy problem to treat. I wouldn’t toss it out. Just make sure to keep it isolated until you can be sure that you have completely treated it. Otherwise you will be treating an entire garden of plants.
Anyway, PM is treatable in veg and even more treatable in clones because they can be dunked. If it’s a strain you care about and your only clone, I wouldn’t chuck it. Unless you don’t want any risk at all. But if it’s your only one. I’d hit it a sulfur dunk first, and then a week later do a neem spray, and a week after that if it is back do another sulfur dunk and neem spray.
Ditching the dirty clone and starting over is definitely the best solution here in my opinion.
In my experience, PM is treatable but almost always ends up coming back at some point if you hang on to the cut long enough. Treatment will make it go away, but it’s probably just a matter of time before it pops back up again.
I only really recommend battling PM if you are close to harvest and you are just trying to make it to the end. Pretty much any other situation you are better off cutting your losses and starting over with healthy plants.
Also… vanilla frosting is sorta new to the scene but I suspect it will become quite popular and stick around for a bit. You’ll have other opportunities to pick up a clean clone if it’s something you really want to grow.
Also the seeds are widely available through a lot of places so you could go that route too. Seeds here now is currently sold out of them, but Id be willing to bet they get restocked pretty soon.
Anyhoo… yes you could try to do battle with PM, but it’s not worth the effort when you could just source a clean clone or pick up some seeds. Especially when it’s not something super rare or hard to find.
Will a foliar spray of 3% H2O2 with Transport help with this? Or cinnamon spray? I’ve sprayed both (without Transport) on comfrey plants with some success.
Thank you everyone for the information! Holy cow, I can’t begin to believe the responses and great knowledge. Long story short, I trashed the clone and sprayed down everything in the garden with some of the recommended optic foliar (ATAK) from the podcast. I believe I was able to save the girls from my own destruction, but I will continue to keep a close eye! And, now I definitely know better for the future, and knowing is half of growing! Thank you all again for the help and great knowledge. I love this community!