longball
Well-known member
Did you use these products for PM or to get Potassium?I’ve used Potassium Bicarbonate though I prefer Potassium Silicate. Citric Acid is relatively cheap on Amazon. Use 1tbsp/ 500ml.
mu
If used for PM, was it as a preventive or did you have PM before use?
If you had PM first, did it eradicate the PM completely or did you have to continue to apply it?
Lost Coast Plant Therapy
"In my limited experience, it seems to work much better if started early as a preventative rather than waiting until you are up to your asshole in alligators!" - Longball
"my experience is for early preventative .....agreed" Sb
https://mrnice.nl/forum/threads/the-other-half.17756/page-2#post-258640
2 other growers and I used Potassium Silicate religiously for 3 growing seasons. We had 100% success rate for getting Powdery Mildew on every single plant we grew every year using Potassium Silicate. Of course, this was not a randomized double blind study of thousands of plants over decades. It is simply what we experienced. Something else, perhaps a poor soil mixture, or nutrition, a different strain of PM could have affected how the plant reacted to the Potassium Silicate. Switching to Lost Coast(containing citric acid) as a preventive eliminated 99% of PM. Looking into the Powdery Mildew a little deeper as everyone has a different 'cure' for it we came up with this:
1) There are thousands of types of Powdery Mildew, depending which one you have may respond better to different treatment.
2) We grow outdoors, you grow indoors, we are exposed to more types of PM than indoor growers are.
3) You live thousands of miles away in a completely different climate. Again, you may have a different PM than we have.
4) PM is uncurable. You may bring it under control but the second you stop treatment it comes right back. We have a few members who can vouch for that.
5) Companies who sell PM products claim they cure it. Scientists claim it is uncurable(safely). Only one of those two can be right.
"Powdery mildew is generally not curable in the sense that you can't completely eradicate the fungus from the environment, but you can effectively manage and control its spread and impact on plants using cultural practices (good airflow, sunlight) and treatments like milk sprays, neem oil, sulfur, or fungicides, focusing on early intervention and prevention for healthy growth. Prevention is key.'
#2 Powdery Mildew
Wild Nights, Hot and Crazy Days Doctor: I’ve got good news and bad news. Patient: What’s the bad news? Doctor: You’ve got powdery mildew. Patient: What’s the good news? Doctor: It’s not fatal, just horribly disfiguring. The invitation has been sent and powdery mildew has arrived. Hot humid days...
Most likely you will need to try many things for PM to see what works best in your area. Or send a sap sample to a lab to check nitrate reductase and find out exactly what is needed. Outdoors, with billions or perhaps trillions of spores in the air it is a never ending battle.
Again, prevention is the key here.
"Potassium Silicate is best used before infection as it won't eradicate established mildew." (forgot the damn link)
These are just my experiences, not the World according Issac Newton!







