Brittle BRown spots

I've 4 plants vegging 2superskunk and 2 AK47 on one of the superskunk ive got this little brown spots which are very brittle and if i scrunch the leafs up it crumbles and im left with little holes in the leaf, I have had a problem with Aphids but ive mostly dealt with them anyway some info I water the plants when i feel the soil is dry maybe every 5-6 days no nutes are used water is Ph-ed to between 5.5 and 6.5 the temp is constantly 30celsius(80f) i have an oscillating fan and the room ins't enclosed I'm not sure what the humidity is like I do have a lil fly problem but ive got sticky tape up to combat'em anyway 4pics, all 4 of em the problemed plant which is the superskunk also the leafs on this superskunk are rather big and bushy compared to the other one I dunno.

sumbadazzbud

looks like mag defeincy.. i could be wrong tho.. i had the same prob but nvr fixed... i wanna sex them b4 i fix them so im not saving males...

sogbunn said:

looks like mag defeincy.. i could be wrong tho.. i had the same prob but nvr fixed... i wanna sex them b4 i fix them so im not saving males...

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Hmm i'm not so sure it is a deficiency since its only showing on this 1 plant and i feed all 4 no nutes and there using the same soil also

sumbadazzbud said:

Hmm i'm not so sure it is a deficiency since its only showing on this 1 plant and i feed all 4 no nutes and there using the same soil also

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i only had it on a few myself... jus cuz its all the same soil and nutes doesnt mean that the plant isnt using it up more then the others... i too posted about it and got no answers but lookin at the defiencey guide, thats what i came up with.. all my new growth is fine so i didnt corect it cuz like i said i wanna find out the sex b4 i waste time and effort

I have Biobuzz- Biogrow I might add a small ammount to the next watering session to see if it helps if not i can always flush... altho i did transplant to a bigger pot last week only and my soil has nutrients to last the plant up to 6 weeks orso it says, but anyway adding a small ammount of nutes won't be too bad at this stage, right?

sumbadazzbud said:

I have Biobuzz- Biogrow I might add a small ammount to the next watering session to see if it helps if not i can always flush... altho i did transplant to a bigger pot last week only and my soil has nutrients to last the plant up to 6 weeks orso it says, but anyway adding a small ammount of nutes won't be too bad at this stage, right?

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when i transplant i avoid adding nutes for atleast a week, even more cuz the new soil is ur nutes, espesaily if u have nute added soil... by adding nutes u could cause more damage and then think they need more to compesate the damage u jus created... in turn creating a snow ball efect... the nute added soil could be ur problem rite there...

sogbunn said:

when i transplant i avoid adding nutes for atleast a week, even more cuz the new soil is ur nutes, espesaily if u have nute added soil... by adding nutes u could cause more damage and then think they need more to compesate the damage u jus created... in turn creating a snow ball efect... the nute added soil could be ur problem rite there...

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Ok, cheerz I guess i should just leave it for now and watch the progress? I mean it dosent look like the plant is majorly unhealthy anyway right?

sumbadazzbud said:

Ok, cheerz I guess i should just leave it for now and watch the progress? I mean it dosent look like the plant is majorly unhealthy anyway right?

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nah man.. looks good other wise.. like i said, mine was jus on older leaves but the tops look lush... if it gets worse then ask around agn... who knows sum1 else mite pop on this and help ya better then i.. good luck!!! oh.. my leaves eventually yellowed up aswell but the rest of the plant seemed healthy... not everything will go perfect, u gotta pick ur battles.. 1 mistake often made is ppl worry too much and try to beter or fix there plants creating more problems... the more u grow the better u will be and better understanding ull have of ur plants needs

How come you are not adding any nutes? I would add something that has some micronutrients in it. If you are concerned with overfertilizing them use half the dosage.

ralston420 said:

How come you are not adding any nutes? I would add something that has some micronutrients in it. If you are concerned with overfertilizing them use half the dosage.

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hmm I've transplanted 3times so far and these 4 are only about 4 1/2 into veg with soil that has enough nutes to sustain the plant for 6 weeks i didn't think it was necessary? atm i'm only using tap water PHed to between 5.5 and 6.5 but if you think even adding a little nutes will be beneficial ill add a low dosage to my next water schedule (this is my first grow still so its all a lil experimental )

Is this stress in the medium from the roots being too wet? I had the same problems when I first started trying to figure out how much/ little water to use when watering not to mention making sure they werent already wet when I watered. Sucks but still fun.

Doesn't appear to be a macro/micro def. at all. That gorgeous dark green color is a dead give-away that it is getting plenty of fert. Those lesions on the leaves look more like a disease, either fungal or bacterial. Likely to be phytopthora or rhizoctonia. Try running a de-humidifier allong with the fans for air circulation and get it drier in your room. Remove the infected leaves from the plant with sterilized shears or a knife . Wipe the blades with a mild bleach/water solution between cuts so as not to possibly spread the problem. I would wait on further fertilzation as this can sometimes accelerate a disease problem. Treat with a fungicide only as a last resort. They don't appear to be out of control so a little cultural practice may be all that is needed.

I had a small inkling it may be a humidity problem but wasen't sure i have a small de-humidifier tho its really still too big for my small closet but i managed to squeeze it in, i guess the floor stays quite damp its only a concrete base and i do have several clones in the room also which i mist regularly anyway ill keep the de-humidifier on for a few days and see if theres any changes Thanks all!