Wind Burn vs Heat Stress

[lilzuko]

Most of my plants have the heat stress look with the curling of the leaves. I experimented a little on one plant with a light blowing of air from a fan. The leaves were not curling but once I turn up the air circulation on that one plant the leaves started to curl a little bit. So I'm wondering does the amount of wind factor with the leaves curling to mimic like a heat stress issue? Granted that my temps are 79F - 82F when the light is on, so it's not a heat issue I believe. But... What do you RIU users think?

 

[vostok]

Curling like this is called 'curled leave margins'

and yes the plant id trying to cool itself

Those leaf capillaries pointing up create vortex over the leaf panels cooling the cells

 

[lilzuko]

Only with the RIU noobs ????

curling like this is called 'curled leave margins'

and yes the plant id trying to cool itself

playing shit like this causes serious undue stress

likely to lead to herming and seriously screwing yields

perhaps consider a promotion to Grass City

https://forum.grasscity.com/register/

their its very popular

good luck

Still doesn't answer my question....

Instead of talking your shit maybe answer the question politely since this website is all about advice and seeking knowledge from "veteran" experienced growers. (Which from I see it's a category you don't fall into)

I know the plant is trying cool down (common fucking sense) but does the wind play a factor in this? That is..."was" my question.

 

[Cyrus420]

Still doesn't answer my question....

Instead of talking your shit maybe answer the question politely since this website is all about advice and seeking knowledge from "veteran" experienced growers. (Which from I see it's a category you don't fall into)

I know the plant is trying cool down (common fucking sense) but does the wind play a factor in this? That is..."was" my question.

What is the temperature at the canopy of your plants? The curling for sure is a heat issue. I wouldn't worry about it too much though.

As for a fan you want a gentle breeze blowing around your plants, not directly on them. Line your fans so they blow across the top of your plants and this will mix the air up nice for them.

 

[lilzuko]

What is the temperature at the canopy of your plants? The curling for sure is a heat issue. I wouldn't worry about it too much though.

As for a fan you want a gentle breeze blowing around your plants, not directly on them. Line your fans so they blow across the top of your plants and this will mix the air up nice for them.

The canopy temp is 77F

Also I have 2 fans on a low setting blowing across the tops of the girls, they are swaying gently in the wind.

 

[Frajola]

Most of my plants have the heat stress look with the curling of the leaves. I experimented a little on one plant with a light blowing of air from a fan. The leaves were not curling but once I turn up the air circulation on that one plant the leaves started to curl a little bit. So I'm wondering does the amount of wind factor with the leaves curling to mimic like a heat stress issue? Granted that my temps are 79F - 82F when the light is on, so it's not a heat issue I believe. But... What do you RIU users think?
View attachment 3664314 View attachment 3664315

Nice topic, Im growing in a attic without insulation lol , crazy shit I preped a room with insulation and made my set up, but heat is a killer and it is going to get worse. I ll be into bloom on summer.
Thanks for ur post, I learned one more thing today, peace & grow..

 

[dandyrandy]

I hang a couple remote thermometers 6" or so below my lamps. I see 83 all of the time. I have my plants at around 24", now in veg at 600w. I expect my plants leaf temps are below 83. Maybe light to close heating up the plant surface?

 

[dandyrandy]

I also have an oscillating fan on 24/7. No issues.

 

[lilzuko]

I hang a couple remote thermometers 6" or so below my lamps. I see 83 all of the time. I have my plants at around 24", now in veg at 600w. I expect my plants leaf temps are below 83. Maybe light to close heating up the plant surface?

My 1000w light is about 3 1/2 - 4 feet from the top of my canopies.
My girls are going into week 5 of flower tomorrow, and the curling didn't happen until about 2 weeks into flower. I vegged my girls for about 50 days with absolutely no problems.
All my problems always happen when in flower.

 

[GhostBud420]

Did you change the output on your light perhaps?

 

[dandyrandy]

No idea. Never had that problem. I've seen it with heat nothing else. Maybe lockout?

 

[lilzuko]

Did you change the output on your light perhaps?

Output has been the same since day 1

 

[lilzuko]

No idea. Never had that problem. I've seen it with heat nothing else. Maybe lockout?

I'm just thinking that some of my strains may like it colder then normal...?

 

[highdave]

I'm pretty sure that is heat stress. Maybe they just like it a little cooler. Have you ran this plant before?

This is what I can only assume is wind burn. Only leaf on the plant that has this and it's been against the fan since flower so almost 6 weeks