Twisted leaves help!!

[WeedSmokerEire]

The new growth on some of my plants are twisted :s i was pretty sure it was heat stress but im not so sure now because it has only started recently.

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[Heavily Medicated]

It looks like heat stress to me. The canoeing of the leaf margins is almost always too much heat.

 

[Oldbie]

Hi WSE,
yes I agree with HM, probably heatstroke. have you got a hot light source (MH or HPS) and how far away from the tops is it?
is there are a chance its only happening recently because it has grown into the hot zone?

 

[Grim Reefer]

This is heat stress for sure. Make sure to move your light source back a couple of inches. A good way to know if its too hot under your light source is to play your hand under neath the light canopy and if your hand feel warm it is too hot fro your plants.

 

[WeedSmokerEire]

It looks like heat stress to me. The canoeing of the leaf margins is almost always too much heat.

Hi WSE,
yes I agree with HM, probably heatstroke. have you got a hot light source (MH or HPS) and how far away from the tops is it?
is there are a chance its only happening recently because it has grown into the hot zone?

This is heat stress for sure. Make sure to move your light source back a couple of inches. A good way to know if its too hot under your light source is to play your hand under neath the light canopy and if your hand feel warm it is too hot fro your plants.

^^ To all the guys above ^^
Thanks for all your advice, i think ive got on top of the problem now... Ive re-routed my intake fan so it sucks cool air straight from the window into the grow space and thats helped a bit, i also raised my 600w HPS another few inches and started to pull the main tops out of the direct heat. Im due a res change today so imma rotate the plants so that the light gets dispersed equally to all 4

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