Patchy Dying leaves, no idea, help needed!

K

Kenny0003

New Member
Hey guys,
First time grower and I'm stumped as to what's going on with my girl.

Starting with the lower fan leaves yellowing and brown spots have been gradually spreading, tips are burnt as with nutrient burn but I flushed (3x water through potting mix) the plants last week. I then gave half strength bloom nutes. No change. It is now still getting worse and affecting areas closer to the buds. I have set up sticky traps in case it's fungus nats, no results yet. Can you tell me does this look like worsening nute burn (and now lockout) or does it look a definciency?

http://imgur.com/a/lYM9N

Using canna Flores nutes. NPKS 2-1-3-1
 
nfhiggs

nfhiggs

Well-Known Member
Kenny0003 said:
Hey guys,
First time grower and I'm stumped as to what's going on with my girl.

Starting with the lower fan leaves yellowing and brown spots have been gradually spreading, tips are burnt as with nutrient burn but I flushed (3x water through potting mix) the plants last week. I then gave half strength bloom nutes. No change. It is now still getting worse and affecting areas closer to the buds. I have set up sticky traps in case it's fungus nats, no results yet. Can you tell me does this look like worsening nute burn (and now lockout) or does it look a definciency?

http://imgur.com/a/lYM9N

Using canna Flores nutes. NPKS 2-1-3-1
Click to expand...
PH of nute solution? Soil or hydro? Runoff PH (if soil)?
 
buyyouabeer

buyyouabeer

Well-Known Member
Looks like K deficiency to me "Leaf margins and tips turn rusty brown, curl and dry, older leaves yellow and develop rust colored blotches"
 
K

Kenny0003

New Member
buyyouabeer said:
Looks like K deficiency to me "Leaf margins and tips turn rusty brown, curl and dry, older leaves yellow and develop rust colored blotches"
Click to expand...
Thanks, added trace elements
last night (including K) that I picked up from a local store, seems to be improving, waiting on calmag to be delivered.
 
buyyouabeer

buyyouabeer

Well-Known Member
If you are running soilless you should be feeding every time you water; half strength is fine until you see how they react. You look like you are in early flower so big changes are coming and they will be hungry. My gurls are Ca whores during this time as well, give it every feeding. Another cheap and easy thing to add is Epsom salt, 1g/gal or about a 1/4 tsp. for a nice Mg and S bump.:peace:
 
K

Kenny0003

New Member
buyyouabeer said:
If you are running soilless you should be feeding every time you water; half strength is fine until you see how they react. You look like you are in early flower so big changes are coming and they will be hungry. My gurls are Ca whores during this time as well, give it every feeding. Another cheap and easy thing to add is Epsom salt, 1g/gal or about a 1/4 tsp. for a nice Mg and S bump.:peace:
Click to expand...
Hmmm thanks, I have don't just that and the rusting (dead lead patches) seem to be getting slowly worse and spreading to other leaves. Any other ideas?
 
buyyouabeer

buyyouabeer

Well-Known Member
Let's see a picture of them now, and without the purple LEDs if you can. Show the whole plant and then some close up to the problem areas. The more details you share about the grow the better and more likely you are to encounter someone on here that is a master at this.
 
K

Kenny0003

New Member
buyyouabeer said:
Let's see a picture of them now, and without the purple LEDs if you can. Show the whole plant and then some close up to the problem areas. The more details you share about the grow the better and more likely you are to encounter someone on here that is a master at this.
Click to expand...
Thanks for the quick reply and right on time (4:20 here in Aus). I've linked a video, the stems are purplish which they have not been previously.

The grow room is about 30 C during the day as it's summer here.
Mars hydro ii 700 w LED is at 30 inches
Strain unknown
1 month (approx) into flower
PH 6.0
Cannaterra
Canna Flores nutes + calmag

 
sunny747

sunny747

Well-Known Member
Oh crap! I hope this can be worked out.

As mentioned, calmag is essential. I use it as a preventative measure even when I'm nt sure I need it, My friend was recently adding tap water to his RO thinking this would be enough calcium, but it wasn't. After the CalMag everything cleared up.

Best of luck.
 
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