Nitrogen Toxicity I think. Help!

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zaybe

Active Member
What's up fam! I believe my plant has nitrogen toxicity can ya confirm? Its the middle of the 6th week and no bud/trich production since week 4ish. Everything just slowed and maybe even stopped growing. I did a small flush with FF sledge hammer so far. What should I do? I know not to feed anymore nitrogen. I was following FF schedule and went half dose. Is there still life in this plant or is it done? Would it still continue to grow after the nitrogen has "leveled out" ?

Also I have another plant (last picture)with this strange curl on one of the leaves. Any idea? Trying to knock out 2 birds with one stone.. Thanks RIU!
 

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Bugeye

Bugeye

Well-Known Member
I would just water her only for a bit and she will be fine. Last pic looks like broad mite damage. You will need a microscope to see them. Google "broad mite damage on cannabis" to see what I am talking about.
 
Z

zaybe

Active Member
Bugeye said:
I would just water her only for a bit and she will be fine. Last pic looks like broad mite damage. You will need a microscope to see them. Google "broad mite damage on cannabis" to see what I am talking about.
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So you think it'll start growing again? Normal feeding without nitrogen? I'll check out those mite pics thanks!
 
rob333

rob333

Well-Known Member
zaybe said:
What's up fam! I believe my plant has nitrogen toxicity can ya confirm? Its the middle of the 6th week and no bud/trich production since week 4ish. Everything just slowed and maybe even stopped growing. I did a small flush with FF sledge hammer so far. What should I do? I know not to feed anymore nitrogen. I was following FF schedule and went half dose. Is there still life in this plant or is it done? Would it still continue to grow after the nitrogen has "leveled out" ?

Also I have another plant (last picture)with this strange curl on one of the leaves. Any idea? Trying to knock out 2 birds with one stone.. Thanks RIU!
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is it in soil and do u water feed water ?? or feed feed feed ?
 
Z

zaybe

Active Member
Diabolical666 said:
what are your grow conditions : temps? soil? lights? Why do you thing its N toxicity?
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I think its nitrogen toxicity because I compared it to pictures and read about it. See how the smaller bud leaves are curling a bit and the leaves are super dark and even looks glossy. Grow tent, +-83 degrees, 1000 watt HPS dimmed to 750 air cool hood. Plants are about 15 inches from light.. Soil and good air circulation.
 
Diabolical666

Diabolical666

Well-Known Member
zaybe said:
I think its nitrogen toxicity because I compared it to pictures and read about it. See how the smaller bud leaves are curling a bit and the leaves are super dark and even looks glossy. Grow tent, +-83 degrees, 1000 watt HPS dimmed to 750 air cool hood. Plants are about 15 inches from light.. Soil and good air circulation.
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but you didnt say you gave it any N....have you given ti any N? 85 is on the hot side, will cause heat stress (which is what I thought of originally)
 
Z

zaybe

Active Member
rob333 said:
how many days into flower are u well weeks ?
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This is the middle of 6 weeks. I scrogged this plant b4 and it took the nutes perfectly. This current one i mainlined this time around and its acting weird and not producing buds like it should.
 
ficklejester

ficklejester

Well-Known Member
I vote for Nitrogen toxicity. Leaves seem very dark in relation to stem and bud color. +1 on mites as well, though this far into flowering I wouldn't use any insecticides. I would run clean ph'd water for 2-3 days and see how she reacts.
 
Z

zaybe

Active Member
Diabolical666 said:
but you didnt say you gave it any N....have you given ti any N? 85 is on the hot side, will cause heat stress (which is what I thought of originally)
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Yes I have, I was following FF schedule and N is in there until mid flowering and it tapers off. The way I grew the plant this time around is through mainlining.. I read somewhere that I would need to use less nutes for this method..but I still might of went too much? I grew it in this temp last time without any issues with heat stress.
 
rob333

rob333

Well-Known Member
sixs weeks into flower thats fine sativa im guessing ? just a little deform from the nutes man and the yellowing is normal im happy that more of ya plant isent yellow so u must be on track with ur nutes just give em a run of plain water wait a few days and back on normal feeds minus the N
 
rob333

rob333

Well-Known Member
rob333 said:
sixs weeks into flower thats fine sativa im guessing ? just a little deform from the nutes man and the yellowing is normal im happy that more of ya plant isent yellow so u must be on track with ur nutes just give em a run of plain water wait a few days and back on normal feeds minus the N
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if it has N as a base in ur flower nutes dont worry then just leave as is
 
Z

zaybe

Active Member
ficklejester said:
I vote for Nitrogen toxicity. Leaves seem very dark in relation to stem and bud color. +1 on mites as well, though this far into flowering I wouldn't use any insecticides. I would run clean ph'd water for 2-3 days and see how she reacts.
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The leaf with the suspected mites is only a week and half into flowering.. You think neem oil would work for those mites if I have them? I might try spraying it with green cure. It actually killed some root aphids I had before.
 
rob333

rob333

Well-Known Member
zaybe said:
The leaf with the suspected mites is only a week and half into flowering.. You think neem oil would work for those mites if I have them? I might try spraying it with green cure. It actually killed some root aphids I had before.
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i jsut use normal fly spray but neem could work i just spray the ground with flyspray and let it mist up with lights off ofc and a oderless one aswell
 
Diabolical666

Diabolical666

Well-Known Member
zaybe said:
Yes I have, I was following FF schedule and N is in there until mid flowering and it tapers off. The way I grew the plant this time around is through mainlining.. I read somewhere that I would need to use less nutes for this method..but I still might of went too much? I grew it in this temp last time without any issues with heat stress.
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Mainline shouldnt require less nutes. I use FF soil and nute/soluable line and follow the schedule to the T. I have no problems. You have NO signs of N toxicity. Your leaves arnt clawing they are drooping from heat stress. Not all strains act alike, some hate wind or high temps, some can handle it. One mozaic leaf doesnt signify broad mites....
 
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