is this phosphurus deficiency?

[medusa22]

hello, im growing a hybrid strain on soil.

the soil is lightmix, from biobizz and the fertilizer is biobloom.

i got a bug problem, spidermites i think, but i wont do anything about it cause im almost harvesting and i dont like smoking pesticides.

this is hapening majorly on the top leafs, the ph is fine (6.5) the temps are ok, the only thing missing is that it happens in the top leafs dangerously near the bud sites...and not in the lower leafs, which seems odd...(already got some leafs with trichomes burned...smokable though lol)

can it be some kind of micronute problem?or nuteburn?

they under a 250 hps.

here are the pics:

 

[medusa22]

anyone?they getting worse each day...:S

 

[moonymonkey]

wat dose,how often? not rootbound are u,im not guessing,cant tll pot size from pic,seyes arent that great...how close is light,air cooled,or just covered? are u checkin for mites with magnifing glass? with out knowin any further info. from glance looks lik to much food..

 

[medusa22]

2ml/l biobloom, last 2 times only plain water, they kept on going worse.

i water them when they get light using the lifting the pot technique.(+-every 3 days)

ph 6.0/6.5

temps 24/28cº normal reflector with 250hps, with a fan blowing directly at them, and another fan pulling air from the street.

mites were checked with magnifying glass, and also through the leafs...you can see theyr work on lower leafs...those leafs are green though.

the pots are normal i think, i had plants in this pots much bigger and never had this problem.

they got the V shaped pardon of phosphurus deficiency, is there any other problems that show the v sign?cause if its not phosphurus, its that thing for sure :S

thanks

 

[moonymonkey]

u say u used same size pots before with biger plants,were they geting the same ferts,dosge,and frequency,same regime as plants ur growin now? u alsosaid plants were biger last time,cuz of strain,and or length of growin time? not sure of v factor wat that is?

 

[medusa22]

its the burn on the leaf, it makes a V padron like in phosphurus.

the strain was different, last strain was a pure indica, grew up a lot more in the same pots, and would eat much much more...about 4mlbiobloom+4mltopmax+4mlbioheaven lol

this ones are hybrids, 60indica/40sativa i think, so i feed much less cause i have been told it could be overfert...but since iflushed them last time, and lowered nutes they got worse.

so im trying to find out what it is, cause this thing happnes mostly in the colas....and burned colas are just sad to see :S

 

[moonymonkey]

i am familar with phosp. def. on leafs,im not familiar with your type of ferts,but thoses questions need to be ask,in case thats the problem cuzing it or wat ever reason,somone can chime in an help n that area.first thing i do is check ph runoff...peace moon/

 

[moonymonkey]

since u flushed them they got worst,back off on the water and or the amont given ,keep track,you want the plant to take up water as fast as possible is the game,an stops goi down hill...i think u nailed it,after the flush got worst.imo...

 

[medusa22]

sorry i didnt understood what you said, english is not my natural language.

the ph is fine, 6.5...

so i should add nutes or keep her without food?

thanks

 

[igrohydro]

Your plants look severly overfed,also it looks like your ph has been out of range.
There is no fixing the damage done,all you can do is flush them and dont feed again untill they recover.
So keep her without food,and they should recover.
Also a fan directly on them all the time wont help,have your fan occilating so there is less chance of wind burn.
Keep and eye on your ph.
Flushing wont make it worse its the food,flush,flush,flush!
Looks like uve pushed her to far with food.
Goodluck.

 

[MynameStitch]

Your plants look burned badly, I would flush your plants out with a lot of water... 2x the amount to the size of the pot.

What size pots are they in?

How far into flowering are you?

 

[medusa22]

ok, i flushed her and the water was comming dark, should have noticed that a lot earlier :S

the ph is fine though

about 3/4 weeks from harvest

 

[igrohydro]

Glad youve sorted the problem out,all the best for a healthy harvest.

 

[medusa22]

Afterall overfert wasnt the problem...:S

i gave a couple of days for them to return to normal form, and they much much worse...only thing ive been feeding is water, and about 4 days ago gave them 2ml of bliobloom in 1liter of water...

they so burned at the tops mostly :s


any ideas, can it be a micro problem?

thanks