mandalaman
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this was their response.
"You are absolutely fine my friend. Even more of a brain twister is the pH… she comes in around a 4.0. ;) No need to adjust either. The FOLIAR is loaded with carbohydrates and pre processed plant photosynthates, can be intimidating on a “numbers” scale persay, though It will not burn your canopy. There is no photosensitivity to it, as long as your not adding any 3rd party products or surfactants. HEAVY 16 is all on an organic acid scale, utilizing organic mineral acids which don’t read accurately until the mineralization process starts, hence why we advise monitoring pH when using HEAVY 16 rather than the traditional PPM scale."
I am going to use 1/2 strength next time to see.
Very interesting post! I notice the pH being way low when using Heavy 16 Foliar, and I always pH up to 5.5-6.0 before applying. Should I not be doing this?