Burned tips
- Thread starter canope
- Start date
Gorillabilly
Well-Known Member
looks to me like c combo of nutr burn and heat stress.
canope
Well-Known Member
Heat stress could really be it, I added 2 lights in the room without changing some stuff that I should've changed (dehum timer). I fixed it today. As for nutes I'm always between 900-1000 since day one, but I did tweak the recipe to lower other stuff and push more calmag. Let's see if I get more burnt tips now that the heat is fixed. Thanks for your reply
Gorillabilly
Well-Known Member
Whats your day night temps.
canope
Well-Known Member
I'm in LED so I keep my temps higher than in HPS. Leaf temp during the day is 24c-25c, thos are top fan leaves
Gorillabilly
Well-Known Member
I think your rite on the nute burn, 25c is hot but as long as your not too close to the light and you keep humidity at 65 or 70 it should be ok.
Gorillabilly
Well-Known Member
OK. At your graph your vpd is all over the place. Got to stabilize humidity I think.
canope
Well-Known Member
That's during the night, at night VPD doesnt matter so I just try to keep humidity low to prevent PM. during the day it's usually more stable but today I did a foliar treatment which spiked RH for a bit
Gorillabilly
Well-Known Member
true, but they like stability, it looks like during the day its still not stable. For best results it should look more like the temp line. Now admittedly, I dont have a graphing controller, mine may look same on a 24 hr graph. Lol. Im high.
canope
Well-Known Member
Lol yeah I was suprised when I looked at it the first time, my friend got one in his room and it fluctuates just as mine even while having 5 smaller dehus instead of 1 big one like mine. I checked some large commercial grows and their stuff fluctuates like crazy too, they're in the VPD seetspot about 50% of the time, it's hard out there for a grower
Gorillabilly
Well-Known Member
Amen brother.