Interveinal rusty spots and necrosis spots

Thanks in advanced

Two different plants, both at day 22 in flower. The white residue is leftovers from a milk/water spray I use to preempt any PM.

Plant 1: I noticed the discoloration on the these lower leaves that looks like rust within the interveinal portion of the leaves. The burnt tips below are a result of burning from the milk spray pooling on the lin week 1.




Plant two is exhibiting some necrotic spots, not sure if that’s a burn from the lights or what.



Thoughts/Opinions on each plant?

Top pic sure looks like light burn to me. You could make a case for all the pics being light burn.
You growing inside? how's the smell from the milk/water spray. I use it outside but never had the nerve to try it inside due to the smell. It works though.

MustGro said:

Top pic sure looks like light burn to me. You could make a case for all the pics being light burn.
You growing inside? how's the smell from the milk/water spray. I use it outside but never had the nerve to try it inside due to the smell. It works though.

Click to expand...

I went and checked the PPFD right after this and holy hell, yeah that’s definitely the issue. Went a little too hard on the LED’s and was pushing 2500 ppfd on one and 3000 on the other. Yikes.

Yep in a tent. The milk/water spray was a bit funky for about 12 hours then the carbon filter wiped out the smell. Totally worth it, as the PM hasn’t been an issue since. I now spray plants twice for the first week they go in the tent.