Clawing and Downward Margin curl

[blackgolem]

Hello all RIU forum users, I started using the Hempy with a perlite substrate I run a small operation a simple 2'x2' basically not bad for my ailments. Lights used are Chinese cheap 100w COB LED 2 cw 1 ww 1 blue in veg area and 1 cw and 3 ww in flower have been alright with this set up using soil. All that said i am wondering and probably should know already, but, I want to know specifically what would cause a downward clawing and leaf marginalizing/cupping? info would be appreciated. day temps are 78-80 degrees at night around 72. But what causes this. Oh and I use DynaGro Grow in RO'd water pH'd to 6.0 along with Cal mag. (The Claw in the middle of the picture)

 

[Coloradoclear]

I don't see anything abnormal in that picture?

 

[hotrodharley]

I just see one affected leaf. I wouldn't worry about it unless you see more do that. If so cut back on nitrogen a bit.

 

[blackgolem]

I don't see anything abnormal in that picture?

okay so that's good

 

[blackgolem]

I just see one affected leaf. I wouldn't worry about it unless you see more do that. If so cut back on nitrogen a bit.

okay cool thanks

 

[CannaCountry]

That's just a blip on the overall plant's radar screen...nothing to worry about. Carry on and good luck.

 

[Nizza]

i used to use the dyna gro and found that foliage pro was alot better to use than the Grow formula. I used it throughout veg + flower with no deficiencies