- Rust - brown - on cannabis leaves - Grow basics marijuana

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• MOV004

[chr1st1an20061]

it is fungus !!!!!!!! treat with a systemic fungicide and check that humidity is not too high - pick off all rust affected leaves and discard so as not to spred the fungi - should have been dealt with at first signs of symptoms - i reccomend fongarid ! - this is not over fertilisation - when this occurs the tips of the leaves "burn" - make sure you are flushing well and measuring the parts per million of your nutrient solution - but this has nothing to do with ferts ! peace

[asamayub]

i think some people are pushing it with mold, fungus or even potash, Mg, cal..

this looks more simply like a nute burn, and nothing else at all!!

MG deficiencies, DONT Like so... Fungus Dont look like so... Potash Def, or Cal Dont like so.... check up on the GREAT CHART OF LEAF SYMPTOMS..

my guess (good few yrs of exp too_) i that u slightly went over on the feed, simply flush,. hold of all feeding a couple days and re start at quarter dose...

voila!¬

[wirikuta14]

@manymen85 I just asked the support where I bought my hydro setup, they sais its nute burn, and it happened after I added 20 liters of nuted water, then realizing I should have added 24 liters for those nutes! add water, they´ll recover fine.

[manymen85]

can anyone tell me for sure that this is? iv got same on some of my plants 2nd week of flowering any help be good thanks

[misa190184]

Hey dude, did u find a solution??? ive got the same problem and not sure what to do....what did you try? please help...i will try to flush and use just water from a week or so and lets see how it goes...

[tribeo15]

It's due to over feeding. It's nitrogen burn. Flush with luke warm water really good for about a day allowing the water to drain all the way then place em back in the room and use just water for about a week. Then use a half dose of nutrients once a week for 3-4 weeks then you will be back on track!

[mdp1991]

I think it might be the distance of the lights or the amount of water u give em, buz mine looks like they are starting to do the same

[theFR1END]

Yo my plants are looking the exact same way.. Feeding them calmag right now. If you're using RO water then it's more then likely calcium, magnesium, or iron deficiency as the RO water is low with these. Hope your ladies are good. Reply back if you found the problem I'd like to know for future reference.

[lohmoelle]

so how they doing now????

[buDDdiE420]

My girls are doing the same :( does anyone know how to get rid of it? I just flushed them & let them sit 2days before I gave them nutrients. I saw some changes as in the curled leaves turning back up but it seems there still browning! Can someone please help me, it would be a shame to see these beautiful things go to waste....

[SwampDonkey345]

no way is that a fungus that is being burn from to much nutes. slow down take a step back flush for a day or two and then go back to schedule.

[newmedgrowr]

for sure a nut burn.i had 12 in flower sensitive to the nuts so i cut back a bit and problem solved.