you use it as foliar spray, got ya, that’s the part my brain skipped 😅 I was talking about using it to ph water.

1ml of 50% sulfuric to 1l water is a 0.05% solution. I’d consider this a homeopathic dose, no offense tho I don’t have any reference points to what kind of strength those solutions usually have and when it works it works.

My ipm…

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I thought I’m answering the original author of the post and just noticed you are a different account in the comments. so the ph part wasn’t intended for you. but I’d still love to learn about the citric ipm

so a quick sanity check for my ph pen is my tap water. I know its ph and I test tap water first everytime I use the pen. It’s no calibration, just a quick check. Tap water is also the first I test after I callibrated the pen and your
water supplier should be able to give you the ph for the water they pump
into the pipes. My ph pen btw is…

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played around with citric acid lately? coz that’s pretty close to what my plants looked like when I did. what do you use to ph your water? and you’re saying it’s not your pen but it doesn’t matter how expensive it was or what brand it is, just check that it actually shows the correct ph, tho, I assume you do calibrate it regularly.

but yeah…

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