Leaves curling down and turning black, are my plants dead?
- Thread starter tutran4
- Start date
Jloi
Well-Known Member
I'd check the P.H. the leaves are droopy and curling in ward.
Jloi
Well-Known Member
No changing the from red to blue back to red spectrum wont do that. If it's the only 2 plants that are doing it I wouldnt weight it on heat. If the P.H is off your fan leaves will twist and droop.
grobofotwanky
Well-Known Member
I'm no guru but I'm gonna say heat stress is your prob. Going from flouro to hid could be the problem. They could be in a hotspot under your bulb as well. Keep your temp under control and your plants rotated and you'll be fine. Nice lookin garden by the way.
hillydirtfarmer
Member
turning black??? my friend..Ive been in the green house/nursery trade all my life..sorry to say,but im leaning toward a viral infection,grab your good ones and get some clorox quik!
secretweapon
Active Member
Curling down too much of something
Curling up looking for something
Curling up looking for something
The Yorkshireman
Well-Known Member
I'm growing in coco myself at the moment and i've got this covered for you.
The downwards droop is caused by overwatering,the closed up taco leaves are caused by a Magnesium deficiency (and possibly heat stress due to the 1000 watter) and the spots on the serrated edges of your leaves are a Calcium deficiency. Look at the big taco leaf in the middle/right of the second picture,I can see the brown spots from here.
You have these problems because coco is inert and if you use filtered/RO water aswell then you will see it faster,when growing in coco you need to add the Calcium and Magnesium that is normally present in soil/water yourself.
You need to get hold of some liquid Cal-Mag or add Epsom salts (Magnesium Sulphate) to your water for the Mg and some Calcium Nitrate for the Cal.
Both can be bought on Ebay.
The downwards droop is caused by overwatering,the closed up taco leaves are caused by a Magnesium deficiency (and possibly heat stress due to the 1000 watter) and the spots on the serrated edges of your leaves are a Calcium deficiency. Look at the big taco leaf in the middle/right of the second picture,I can see the brown spots from here.
You have these problems because coco is inert and if you use filtered/RO water aswell then you will see it faster,when growing in coco you need to add the Calcium and Magnesium that is normally present in soil/water yourself.
You need to get hold of some liquid Cal-Mag or add Epsom salts (Magnesium Sulphate) to your water for the Mg and some Calcium Nitrate for the Cal.
Both can be bought on Ebay.
The Yorkshireman
Well-Known Member
And you also talk a lot of shit (27 posts a lot of them today,all bullshit!) don't give guys bad advice based on your limited knowledge.
If you have been in the trade all your life please tell me how the hell you come to the conclusion that this is a viral infection? Also what use would a bleach based product like Clorox be (other than cleaning tools/pots) as viruses dwell inside the cells and cannot be treated with chemicals so affected plants must be destroyed (special microculture techniques may overcome the infection by taking cells from the growing tip, but this is restricted to the laboratory). There are no antibiotics for plants, so bacterial attacks, eg. fireblight, are untreatable as well. Fungi can be killed with chemicals without damaging the host because their growth habit is different, ie. they tend to grow on the plant and not in it, using root-like structures to extract nurishment.