You’ll probably think I’m crazy, ( @PlantShepherd too) but I left 2 horribly infected plants about 50 feet from everything I harvested this summer so I could see what was resistant. There were times I regretted that decision, but now I’m happy I did it. I found resistant plants. Much of what I gave you were resistant or immune. PM is always in the air where I live when temps allow and plants are constantly exposed. Spraying plants with compost tea will give the leaves a coating of bacteria that PM has to compete with. If the leaves are inoculated with good bacteria, there is no free space for PM to take up residence.
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Sorry, I was stupid tired last night. I loved this statement. I also really like your microscopy pictures. If you ever get the chance, I think it would be really cool to take some pictures of pm. And yeah, the literature on how pm attacks a plant/systemic or not is really crazy. Unless someone can cut open a plant and find pm dna in the sap, I wouldn’t think it would be in the systemic category.
It’s my understanding there are thousands of varieties of pm, and only a handful affect cannabis. So what affects your grass or weeds outside may, or may not have any effect on your cannabis plants.
Nope, don’t think you’re crazy. I think if you were truly doing breeding for pm resistant strains, I think you’d be doing something like that. I posted this last night, and then took it down cause it talks more about ‘pests’, but I think this definition I really like from UC Davis fits for this post.
“Integrated pest management (IPM) is an ecosystem-based strategy that focuses on long-term prevention of pests or their damage through a combination of techniques such as biological control, habitat manipulation, modification of cultural practices, and use of resistant varieties. Pesticides are used only after monitoring indicates they are needed according to established guidelines, and treatments are made with the goal of removing only the target organism. Pest control materials are selected and applied in a manner that minimizes risks to human health, beneficial organisms, and the environment.”
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Thanks @PlantShepherd. Not a breeder yet,give me a few years,right now i am just a chucker, for seeds.
In fact with all the great info and help here…maybe just give me a year , appreciate the help and input!
still outa luv, but im a catch up lol need to take a day off from here. Cant help that i like things lol, its honest
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Just received the FREE Samples from drzymes.com…TWO (2) 2oz Bottles of Eliminator, makes about 3 - 4 gallons (I use 1/2 of their Directions). TOTAL cost/$7. Going to get several friends/neighbors to order for me (I LUV Free Samples!!!). ALL, stay safe and, be well.
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in case nobody saw before, this is what a healthy mildew colony looks like.
here’s an illustration showing what all that shit is.
note… the parasite is living on the SURFACE with it’s feeding tube into the epidermis.
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ugh, I mean what universe are they still debating on if it’s systemic or not. Lookit the illustration. There is no reproductive part inside the plant the hypha is on the surface. Once you scorched-earth the plant - that fungus is toast. Due to the haustorium penetrating the leaf epidermis, you could probably get a positive dna test in there, but not beyond the epidermis layer though.
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So I moved that plant far, far away from my other plants. Around 10 acres away. I decided to do a little experiment. Since I already decided to destroy the plant I dont care if it dies. I cut a ton off it. All the lower stems and buds, left around 4 stems and the main cola. I then heavily defoliated it. It looks like an abomination, but isnt dying. None of the leaves currently have any viable PM on them. But these little sugar leaves, is that PM on them or just heavy trich build up?
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GreenCure will work, but it’ll fry every hair on your plant as well. A 50/50 solution of milk and water works also.
Giving your plants Silica will help them defend themselves against powdery mildew. I add 3-4ml per gallon in veg.
Anyone who has had pm inside/tents can burn sulphur prills to kill any spores that are caught in or on your fans/filters/light fixtures (stuff you don’t wanna spray). Just don’t burn it with plants around.
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The powdery mildew won’t be visible to the human eye for a while yet. I’ve never seen a haircut kill off the pathogen completely. You have to scan all surfaces for spores and hypha, which is an impossible task.
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isopropyl alcohol works also.
Food grade cut with water, works on m I n o r mite problems also.
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other site I used to belong to, some tried milk.
Not a cure, had better luck with whole milk.
Shits tough to get rid of without ruining your crop or toxic to your system.
Use of Sulphur on an ongoing thing.
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You gotta nuke the hypha with a good soak from some sulfur, then 2 weeks later another soak. Never apply in bloom, and you will never see it again. Fortunately the mycelium only grows on the top surface of the vegetation. If you are growing outside and there are hops around or other cannabis crops with mildew, good luck. Never track that shit into your grow area, either outside or inside.
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Those are trichomes. The pm will generally appear on the middle of leaves first in spots that look like flour or dust. Hopefully she finishes before it comes back, and rest assured it WILL come back 
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I had already destroyed half the plant, checked it today trichs were mostly cloudy, some clear. Decided to chop it a bit early. Better than nothing in my opinion
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Ya probably a good call, that’s where I’m at with my outdoor plants also. They’d be fully ripe in a week or two, but the pm is starting to show up in spots and it will take over before they finish. I guess I have some trimming to do tonight haha
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For sure that was my afternoon ha ha! I did take a precaution and hung these ones on my garden shed, not in the same building were I have other buds drying.
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Haha. I sort of did that, but was too stubborn to destroy it all.
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Pretty chunky, not a bad harv at all!
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That’s great info! I was told it was systemic. You just sold me that it isn’t. Pics don’t lie!
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