Powdery mildew and pectin in soil grow

budrock61

Active Member
Room grow, led's, twelve 10 gal pots, Detroit Nutrient soil, scrog. Two large oscillating fans, temps 78-80 light / 75-78 dark. Humidity 40-50. Filter on air intake. Room is clean, preventive measures taken. In week 3 of flower.

Treating with Regalia and Lost Coast sprays - PM goes away but keeps returning. Searching for a more permanent solution.

I saw pectin mentioned in my search by Justkickinit420, as well as this article below (same guy?):

PM article

Apparently L-amino acids combined with calcium results in plant produced pectin, which prevents PM from taking hold. Has anyone else here tried this in soil? How is it applied?
 
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