Progressive rust/yellow few weeks into flower

[i love herb]

10ml pbp bloom
8ml sweet leaf
1ml cal mag
no hygrozyme
10ml liquid karma

ph'd to 6.5 with RO water


im heading there tonight to flush the most severe of the plants tonight, ill flush and NOT feed.



anyone familiar with those clearing agents? i have botanicare clearex, should i use that?

http://www.americanagritech.com/product/product_detail.asp?ID=1&pro_id_pk=11

 

[inflorescence]

clearex is basically an isotonic sugar solution that acts like an organic chelator to bind up some extra nutes in the soil then the weight and force,flow of the flush wash away those bound particles.

It basically acts exactly like a soap does when removing oil.
The soap forms a complex with oil then the water rinses that complex away.

But if you do not rinse all the clearex bound complexes out when flushing then you will be left with chelated complexes in the soil that are now MORE READY to be used by the plant than before thus in essence feeding the plant more than before the flush because in essence you've just made your nutes in the soil more efficient.

 

[stinkyattic]

I think you're potbound, quite simply.
Those plants are pretty big for those bags, and the wild fluctuations in soil/runoff pH are indicative- the medium of a root-bound plant gets twitchy and soil chemistry is hard to stabilize.
Also, is that ProMix, or any other peat-based medium, and if so, has the plant been in it for more than a couple months? It's entirely likely that the buffering capacity of the lime initially used to stabilize the soil is used up.

 

[i love herb]

I think you're potbound, quite simply.
Those plants are pretty big for those bags, and the wild fluctuations in soil/runoff pH are indicative- the medium of a root-bound plant gets twitchy and soil chemistry is hard to stabilize.
Also, is that ProMix, or any other peat-based medium, and if so, has the plant been in it for more than a couple months? It's entirely likely that the buffering capacity of the lime initially used to stabilize the soil is used up.

they are 5 gallons pots and the oldest has been in it since flowering,a bout 3-4 weeks


it is impossible for it to be pot bound

 

[stinkyattic]

What size pots were they in before?
A month is plenty of time for a plant to fill a 5 gallon grow bag with roots, especially if the previous home was fairly spacious.

 

[i love herb]

1.5 gallon pot


it was put into 5 gal bag and immediately into 12/12

 

[Guest]

...in the past 7 days...(first 7 days of flower)...I've had roots plow through atleast "5-"6 of soil. Needless to say, if you've got better rooting conditions than I, your plant COULD grow to be potbound in a matter of 2-3 weeks.

I can only tell you what I've experienced.

(the only reason I know this is because I decided to pot up to something bigger and had to transplant a week into flower!...No, I'm not using transparent grow bags!)

 

[i love herb]

i tried a combination of things as you guys suggested.

the purple kush i flushed with 15 gallons of water then gave a light feeding
the white rhino i flushed with 15 gallons
the church (oldest of the bunch) i flushed with clearex

the church and white rhino are really starting to yellow. im guessing its from the lack of nutes. the purple kush is looking great!


yellowing oldest plant, church
(sorry for HPS ill take a better pic of it when its dry enough to water)



i fed one of them last night that was dry (the purple kush) and had some left over bloom water (1 gallons or so) so i poured a half a gallon each down the stem of both the yellowing plants... they werent dry yet for a full watering but i figured they need the nutes since they are yellowing like crazy....

is this to be expected or do i have a bigger problem? was giving a little bit of nute water the best option? what to do from here?

purple kush:






I have some babies growing up nicely but seems i have a bit of classic mg def... can anyone confirm?









thanks!

 

[10k]

yup, the ones in the bottom picture look like they'd enjoy bumping up the calmag a bit.
hell alot of the first set of pics look like they could use some too....

I'd reduce the pbp to @ 15ml, and raise it gradually after you're seeing results.

 

[10k]

how are you judging how to water btw ?
I hope you're not sticking a finger in the soil, because that just does NOT work well at all, especially in their newfound larger containers (bags). click my link "lift the pot"

 

[i love herb]

i judge water by lifting/fingers/and a moisture meter

LOL ive got watering down, ive harvested a few nice crops


having a hard time with this due to switching nutes and new environment

 

[i love herb]

i fed the babies last night:

2-2.5 ml cal mag
10ml pbp grow
6ml hygrozyme
10ml liquid karma


the new feeding plan for the flowering girls is:

10ml pbp bloom
10ml liquid karma
8ml sweet leaf
6ml hygrozyme
1-2ml cal mag

also gave them some superthrive

 

[payn4school]

what is your medium?

 

[i love herb]

fox farm happy frog

 

[i love herb]

This pic is 4 days after they were fed the 2ml of cal mag... they dont look any better. maybe that wasnt enough cal mag? or maybe they havent had enough time to show progress?








im also having difficulty sexing these girls... the light schedule is 18/6 and they are over a month old.


i did notice since its getting cool the temps are in the high 60's to low 70's with the light on... also the humidity was really high, 70% ish.

i made adjustments to try and lower the humidity and raise the temp... could that have something to do with it?


here are the pix of the nodes... tell me what you think they are.














the flowering girls still arent really dry enough for me to pull out and take good pics of... ill be watering/taking pics of them tomorrow.

 

[MynameStitch]

The only thing high humidity could cause is mold mildew and other unwanted issues. Good thing you are getting that down; you will pat yourself on your back now then waiting till later in flowering and you got bud rot or PM.
I can't see them sexed as for now, how many sets of leaves does she have? I have noticed that on the 3rd or 4th sets of leaves look in the middle of the branch where the buldges are, you will see the sex there first. You can get a 20x microscope or a 30x and put it on the area where the branches come from the stalk. If you see a tear drop shape you have a female.
It almost looks like a pear.
A male will have a ball, but the ball will look like

\
()

Like that.. it will have a little curl from the ball like a finger sticking out of your hand. Think of your hand closed use your first finger and curl it as if you were about to close it... that is what it would look like.
Hard to explain. I never did get a chance to get a close up pic of early male and female pre flowers... I know it woulda been helpful.

For one your plants are showing alternating nodes which means they are getting mature; so the sex should be showing soon if it has not already. Some strains it takes them to flower before they show sex; it all depends. A bigger numbers shows sex before going into flowering than flowering from what I have seen.

But remember look on the main stalk count 3 to 4 sets of leaves up and look where the branches come out of the main stalk.

 

[i love herb]

k just not showing sex yet, got it.


i have 2 rooms, the flowering room is perfect 75 and 35% humidty


the veg box is in another room and is mostly sealed, i had to crack the door a bit to raise the temp and lower the humidty.


what you think of the mag def, too early to show improvement or not enough cal mag?


any thoughts on my previous post with the yellowing flowering plant

 

[MynameStitch]

It will take a little longer to show improvement; magnesium deficiencies do show IMPROVEMENTS if caught soon enough.

you use 2 ml of cal mag per gallon of water?

You using RO water?
I do not see a previous post about a yellowing flowering plant

 

[i love herb]

i tried a combination of things as you guys suggested.

the purple kush i flushed with 15 gallons of water then gave a light feeding
the white rhino i flushed with 15 gallons
the church (oldest of the bunch) i flushed with clearex

the church and white rhino are really starting to yellow. im guessing its from the lack of nutes. the purple kush is looking great!


yellowing oldest plant, church
(sorry for HPS ill take a better pic of it when its dry enough to water)



i fed one of them last night that was dry (the purple kush) and had some left over bloom water (1 gallons or so) so i poured a half a gallon each down the stem of both the yellowing plants... they werent dry yet for a full watering but i figured they need the nutes since they are yellowing like crazy....

is this to be expected or do i have a bigger problem? was giving a little bit of nute water the best option? what to do from here?

purple kush:






I have some babies growing up nicely but seems i have a bit of classic mg def... can anyone confirm?









thanks!

bump for stitch


yes 2ml of cal mag per gallon
and yes i use RO water

 

[MynameStitch]

ok I would use 1 tsp per gallon of cal mag if it does not fix in a few more days.
Always good to start out small.

AS for the yellowing, your in flowering; would not worry about it now cause you do not have long to harvest. Now, if yellowing happens before 3 weeks; give some nitrogen to fix up the issue; otherwise you will not have enough fan leaves to finish off flowering; they will drop them by the time flowering ends.
That is if that happens to you. Right now do not do anything with the yellowing leaves.... totally normal for this late into flowering.