What is happening to my plant?? Cant find anything similar anywhere..

Plant is 5 weeks into flower, in 80% soil and 20% perlite mix, ph is 6.0 and lighting is 8 x 100w LED at 50cm from the canopy. Leaves have started to lose shape and lower leaves are yellowing and higher fan leaves are going as shown in the pictures bellow. Lights off temps range from 15-22 degrees celcius and lights on temps are 24-31 degrees celcius. I know 31 is abit hot but i know this isnt causing this strange single finger yellowing issue. I think it may be some sort of fungus issue!?

Plant is in a 18 litre plastic pot, should of been transplanted to an 11 gallon fabric pot but decided to see how the smaller one would do. Here are some more pictures. The dark green 3 finger leaf is from a clone of the same plant in the veg room just to show what colour the leaves were before it entered 12/12

Your girls look pretty good. I really wouldn't worry about a few yellowing leaves, especially being you're in week 5 of flower. You're rounding third base and headed home...it's natural for the plant to begin yellowing as it nears the end of its life. Looks like you know what you're doing; I'd just carry on.

Its just strange because only one finger will yellow more than the others and all the single fingers that do turn have like a small dark patch on one side of the vein at the stalk end of the leaf. If you bend that finger of the leaf it will snap super easy and the other fingers on the same leaf will just bend not snap. Here is another pic of a leaf that i pulled off while it had the single finger discolouration. Its strange that every leaf that does this has the dark stain at the base almost as if its apart of the stem itself but its not. Its like a fungus or somthing.

Yellowing absolutely natural, buds are taking nutrients from fan leaves photosynthesis slows so less green in the leaves. My assumption to your issue is that the damage is causing the one fan to loose its luster quicker than the others...possible bug infestation or mold? Not sure just making some guesses, hope that gives you something.

But yeah do you have any bug issues, and or mold problems? Could it be necrosis?

No bug issues other than the odd fungus gnat and springtails in the soil. Cant see any visible mold that i am aware of. Some necrotic spots on the occasional yellowing leaf. Here are some pics of the flowers with the led lights off.

honestly they just look hungry. I mean fading is natural, especially when they're underfed. I generally don't like to see fading at week 5, preferably weeks 7-9. Other than that, I think they look fine!

ShLUbY said:

honestly they just look hungry. I mean fading is natural, especially when they're underfed. I generally don't like to see fading at week 5, preferably weeks 7-9. Other than that, I think they look fine!

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Yeah shes a hungry strain this girl and i ran out of my all in 1 flower nute on week 1 so iv just been trying to estimate my feed with bat guano bloom 1-9-1 and liquid potash and epsom salts but i feel it hasnt been enough and iv probably been causing issues. Also i dont think the crappy led cobs are helping much

Chopntrvp said:

Yeah shes a hungry strain this girl and i ran out of my all in 1 flower nute on week 1 so iv just been trying to estimate my feed with bat guano bloom 1-9-1 and liquid potash and epsom salts but i feel it hasnt been enough and iv probably been causing issues. Also i dont think the crappy led cobs are helping much

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light source being "crappy" has actually saved you then. you likely would have run into this much sooner without.

Well she looks frosty id smoke her, if i smoked