Leaves curling up weird at end of flower

[Blazed227]

Ok so this happened at the end of the last grow an it is driving me insane... There should be about 2 weeks left an the leaves are curling up an getting crispy.. could this be from the heater being a little to close? Or the humidity dropping to low sucking the moisture out of the leaves... The humidity is between 25%-35% usually but maybe the heater I don't know.. it's only happening to the one plant.. that's the closest to the heater.. but was never. Aproblem in veg.. idk what do U guys think? The rest are fine..an there all the same strain.. critical sensi star

 

[DoctorJohnson]

Yeah, I'll bet heat. I had a plant do the same thing at the end of flower--low humidity and bright lights and warmish on older leaves just crisped 'em.

 

[starramus]

Logic says to move the heater. But then there is the Uncertainty Principle.

 

[Blazed227]

Well yea.. I did i turned the heater and moved the plant farther away

 

[Grinder]

That doesn't look like a plant problem but an environment problem. Heat, wind burn, etc.

 

[Blazed227]

Yea I was thinking that's what it was... I had the heater blowing parallel to the girls an a fan blowing the heat towards the back of the room towards the plants on oscillate an I guess was prolly a combination of air an heat... Because it was only on the one.. so I'm hoping that's what it was.. trimmed off the dead ends so will see

 

[oldjarhead100]

I turned my heater around and put it on a thermostat with a tower fan on low blowing it out to the plants I also move my plants around so enviro factors are not as much of a problem

 

[HydroKid]

I would say heat issue. Some of my plants do this late in flower when they start reaching for the 1000 watt HPS. Humidity would cause a small curl just around the edges. Heat cause the leaves to make a canoe shape. A fan up high would counter this blowing towards the heater.

 

[Blazed227]

Well 2 more plants started doing this.. the one that was doing it first isn't anymore.. I trimmed off the bad spots and I'd fine now.. but 2 others are.. I have a fan mounted up high blowing across an a fan down low on the opposite side.. the temps are between 72-77 humidity at about 25-30 .. my heater has been facing away and has a thermostat built in and I'd only on during Lights out.. errr driving me crazy I could scream.... Always something.. wanted to let them go another week but may start chopping... There still fattening so wanted to let them go a bit longer , but is pissing me off I can't figure out wth is going .On... There all milky with some amber... Wanted them to get a little more amber an swell a little more cause I flowered these clones fairly small.. might get an ounce per plant... With 7 an the one runt I thought was gonna die at first might produce a half ounce .. will see