This happened on my last run. Plant will start yellowing super fast and within 2 days it just dies. This is with pineapple chunk. I had to pull early last run cause about 4 plants died and one was all the way in the back and impossible to extract.
I'm thinking heat stress.? My temps are kinda high. 85 86 with co2. But above the canopy I'm sure it's hotter. This is at 36 days flower. The mountain apple OG on the left you can see the leaves starting to yellow where the hot spot is from the light. And the pineapple chunk on the right there is hardly any yellow leaves. I have a 18k mini split running now for 8k of lights .. and a 36k btu in the box waiting to go in for the next run.. So will a plant just up and die in a matter of 24 hours due to heat stress.? There is no burnt curled leaves anywhere. Idk the only thing I can think is heat stress. And when the leaves start to yellow. It's like within hours it gets all the way totally yellow. This plant was fine yesterday when lights were on.. I go in this morning at lights off and this plant was dead.. that fast it happens.. I have no pests. No RAs no mites no nothing in this room. My first time ever in all my years of growing this has happened. But this is the first time I've ever had temps this hot too.
This is the left side. Mountain Apple OG. You can see the yellowing on the hot spots.
Right side is pineapple chunk. With hardly any yellowing. Last run was all pineapple and where I had 4 plants within a week just die literally overnight.
I'm thinking heat stress.? My temps are kinda high. 85 86 with co2. But above the canopy I'm sure it's hotter. This is at 36 days flower. The mountain apple OG on the left you can see the leaves starting to yellow where the hot spot is from the light. And the pineapple chunk on the right there is hardly any yellow leaves. I have a 18k mini split running now for 8k of lights .. and a 36k btu in the box waiting to go in for the next run.. So will a plant just up and die in a matter of 24 hours due to heat stress.? There is no burnt curled leaves anywhere. Idk the only thing I can think is heat stress. And when the leaves start to yellow. It's like within hours it gets all the way totally yellow. This plant was fine yesterday when lights were on.. I go in this morning at lights off and this plant was dead.. that fast it happens.. I have no pests. No RAs no mites no nothing in this room. My first time ever in all my years of growing this has happened. But this is the first time I've ever had temps this hot too.
This is the left side. Mountain Apple OG. You can see the yellowing on the hot spots.
Right side is pineapple chunk. With hardly any yellowing. Last run was all pineapple and where I had 4 plants within a week just die literally overnight.