Leafs curling downwards

[Jason0121do1]

Hi i have a good few leafs curling downwards any idea what this is? Theres also a couple that are curling up at the sides.

Im feeding with canna a and b. Growing in coco also using ph down.

Thanks guys

 

[Tyleb173rd]

When did you water last?

 

[Jason0121do1]

When did you water last?

Theres two sets of plants in there ones that have been in veg 3 weeks and ones that have been in veg a while longer.

I watered the smaller ones today and the bigger (just been repotted) ones i watered 2 days ago.

Both sets have leafs that are curling under

 

[Jason0121do1]

Btw smaller plants need watereing daily as there in smaller pots atm

 

[Tyleb173rd]

Btw smaller plants need watereing daily as there in smaller pots atm

I disagree. I have plants in 1 gallon containers that I water every 5 days. Let the plants dry out for 2-3days, at least.

 

[Jason0121do1]

I disagree. I have plants in 1 gallon containers that I water every 5 days. Let the plants dry out for 2-3days, at least.

There drying out the same day im watering them. There in 2 litre pots

 

[Tyleb173rd]

I overlooked the growing in coco. Sorry....

 

[Tyleb173rd]

If all else fails move them to a bigger pot?

 

[Jason0121do1]

Anyone think i should flush these? And if so should i add ph down as my water is 7.5 ph. Thanks or should i just flush without ph for a few days?

 

[Jason0121do1]

If all else fails move them to a bigger pot?

Its not the pot size thats the problem though mate. Ive repotted some into bigger pots

 

[*BUDS]

Could be heat/light stress. Raise the light and cool the room down.

 

[legalcanada]

growing in coco you can always keep watering/flushing until the runoff equals what your putting in the top without worrying about over watering. curling up at the edges / tacoing sounds like heat stress or light toxicity, whats the temps of the leaf surface and what type of lighting/distance?

 

[legalcanada]

yeah from looking at your pics it looks like heat/light stress or pests IMO

 

[Roger A. Shrubber]

the tips curling down is from overfeeding N. nothing else does that that i'm aware of
the leaf tacoing is from high heat, low humidity stress. whats the temperature at canopy height and whats the rh in your room? bet the first is high and the second is low

 

[legalcanada]

leafs clawing down can be from nitrogen tox but will also happen with russet / broad mites

 

[Jason0121do1]

yeah from looking at your pics it looks like heat/light stress or pests IMO

ive moved light further away from plants and im feeding with just water. See if i notice a difference within a couple of days. Ive also added a 4 inch intake "today" which i had lying around (The intake is coming from the same room the tent is in).

 

[Jason0121do1]

the tips curling down is from overfeeding N. nothing else does that that i'm aware of
the leaf tacoing is from high heat, low humidity stress. whats the temperature at canopy height and whats the rh in your room? bet the first is high and the second is low

ambient temp was 27.7 celcius and temp in direct light was 26.7

mad huh lol

 

[Jason0121do1]

growing in coco you can always keep watering/flushing until the runoff equals what your putting in the top without worrying about over watering. curling up at the edges / tacoing sounds like heat stress or light toxicity, whats the temps of the leaf surface and what type of lighting/distance?

never heard of light toxicity before.

also i cant seem to see any bugs with the naked eye

 

[Roger A. Shrubber]

what the relative humidity in your grow room? you want it to be at least 50% during veg, a little lower during flower. they not only can take a lot more humidity, they like it, unfortunately, so do pm and botrytus

 

[Jason0121do1]

what the relative humidity in your grow room? you want it to be at least 50% during veg, a little lower during flower. they not only can take a lot more humidity, they like it, unfortunately, so do pm and botrytus

its usually around 30% some say thats fine. Maybe i need to get a humidifier then.

Thanks