I just performed LST on my White Widow then I found two leaves with Burnt marks on the edges. Could it be that it’s to close to the heater which hardly turns on or wind burn or nutrient deficiency. Or, it could have been too close to my ES300 V3 lights bc when I checked the distance they were 28 inches from the plant. So I raised them to 30 inches. My White Widow is in its 5th week of Veg. But, the burn marks were at the middle of the plant on the edge. Help.
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The white stuff is gone
The heater was on the left of the plant so I moved it to the right as you can see in the photo. I also spun the plant around to perform LST, that’s when I found the burnt leaves. The burnt part of the leaf looks like paper. It could be the heat.
My guess is from the heater. I ran into that same issue in the past and encountered similar damage.
It's not an issue. Keep an eye out for it on any other leaves higher up the plant. It looks like something from probably 2 weeks ago. Plants don't heal from leaf damage they just make new ones.