Why are some of my leafs curling like this

[CrustyWires]

Soil grow using hps

It seems out of 30 plants around 9 are curling up

Two photos show the curling, one shows a plant that doesnt

I noticed the curling even occurred on two plants directly after trroomlanting with the lights at other end of the room(therefore Light doesn't appear to be causing)

 

[Hollatchaboy]

Heat.

 

[green_machine_two9er]

My eyes are melting !!!!

give us some more info. I agree it looks like heat stress. But hard to say what’s happeningwith those pictures.Take a lights off pic. Or when lamps just start to warm up.

 

[Hollatchaboy]

My eyes are melting !!!!

give us some more info. I agree it looks like heat stress. But hard to say what’s happeningwith those pictures.Take a lights off pic. Or when lamps just start to warm up.

Agreed. I was just throwing a guess out there, based on the pics, but it could be something else.

 

[BeauVida]

Nute issue. Plants like light and heat.

 

[curious2garden]

Soil grow using hps

It seems out of 30 plants around 9 are curling up

Two photos show the curling, one shows a plant that doesnt

I noticed the curling even occurred on two plants directly after trroomlanting with the lights at other end of the room(therefore Light doesn't appear to be causing)

Check the underside of your leaves for mites. Do it in natural light. Use magnification to make it easier. I don't see signs but that sort of twist can be indicative of that.

 

[CrustyWires]

Confirmed no mites, will get more pics later
I think more likely nutes or just gene issues, they were seeds not clones

 

[go go kid]

sure looks like heat stress to me too

 

[Hollatchaboy]

Nute issue. Plants like light and heat.

Tell that to this plant....



I bet it disagrees.

 

[go go kid]

Tell that to this plant....

View attachment 5312763

I bet it disagrees.

is that one outside? wtf temps you got?

 

[Hollatchaboy]

is that one outside? wtf temps you got?

Not mine but a buddy from so. Cal..... dealt with some pretty hot temps.

 

[go go kid]

Not mine but a buddy from so. Cal..... dealt with some pretty hot temps.

yeah, i cant imagine being in that heat all the time, its bad enough over here, weve been having some real hot wether, then we had a bad sp[ell of rain n cold for the past two weeks, not great for anyone growing outside over here, mould wether