Quote:
Originally Posted by Itoero
ok,
Where I live, people use sodium bicarbonate to treat rust on garlic or onions.
But with potassium bicarbonate I should have better results?
Is there any known difference between potassium and sodium bicarbonate as fungicide?
And my last question,
How much potassium bicarbonate should I dissolve in 1l water?
|
https://attra.ncat.org/attra-pub/download.php?id=126nteaspoosg
I used 4 teaspoons of potassium bicarbonate and 1 teaspoon of liquid dish soap (not detergent) per gallon for powdery mildew on squash and it was effective at killing PM. Experiment and see what works best. I don't particularly like the idea of using sodium bicarbonate because of the potential phytotoxic effects of the sodium ion which can vary between the type of plant. Besides potassium bicarbonate is just more effective.
Quote:
Originally Posted by Iva
Itoero, I use sodium bicarbonate on my tomatoes, I've never used it on garlic though. Do you know if it actually works?
Sodium bicarbonate is easily accessible here, not so sure where I could get the potassium one...
|
Potassium bicarbonate is sold by wine making suppliers, Best price I've found was $7.50/LB + shipping on ebay.