Auto - Bottom Leaves Yellowing & Rough

Looks like you need calcium to me but I'm not a pro. As far as I'm aware, that doesn't start at the bottom specifically though.

Mites usually leave tiny white spots on the leaves.

I had thrips before that looked like that look with a jewelers loupe to see them

To me that looks like its hungery and has been sprayed with water. Coulb be one of a hundred things honestly tho lol

Have you started feedings? Do u mist ur plant? What soil are u using and if u can post a pic of the while plant that would also help!

Cal/mag deficiency looks like, what are you going in? What is your PH?

Yup looks like Cal/Mag like stripulus said, check your Ph and feed them a little "Grow" with Cal/Mag. Doesn't really look bad at all. As far as hours of light your going to hear it all. IMO something like 20 to 24 hours should work fine. How old are they?

Autos do need feed .... Just less of it.

What light sched ... 18/6 ... 20/4 ?
How old ?

Looks a little lanky. Leaves look like ph issue.

Autos definitely need feeding...most certainly need part a and b nutes and calmag....what you are seeing here is chlorosis, basically the plant cannibalising itself out of a lack of nutrient...the photo below is one of my two heavy bud autos from Advanced seeds...I started giving her veg nutrients at 1/4 strength and then gradually strengthened it up to 3/4.....basically until it stopped stretching and started to really develop flowers. Then I did the same with flooring nutrients...also gave her some big bud booster, cal mag every water and silika(to improve branch structure) and molasses...Now she is a beast! Also I find that once you give your plant 3 doses of nutrients you should flush her down to under 100 ppm and let the medium dry right out....then pound with around 1200ppm of flower nutrients at a ph of 6.1...I do this because 6.1 is the best range for your plant to take up Phosphorus and potassium and they go freaked mental!!! Nutrients is one thing, but if you don't have a good light you are screwed from the get go...and your plants look leggy as all hell.

Feed them. Run veg nutes til the end. It will extend veg time for a bigger plant. Switching to a bloom feed early can induce flowering in autos.

Feed autos at 1/4 strength and work up.

hey guys! you guys rock!
Stip and white thanks!
just went to store. got botanicare cal/mag plus.
they say its the best because it has alot of other minerals as well.
guys at store say they use calmag every feed from beging.
they are budding now. just started a week ago.
so doing flora bloom general hydroponics.
will do what u say. 1/4 strength and work up.
give 10 days for flush before harvest.
also might use molases like you said. heard it works well. sugar.
im good on light. 1,000 watt. good temp finally. 78-84. put in cooled hood.
thanks again everybody!! will post pics in a week or 2.

White???

Feed them. Run veg nutes til the end. It will extend veg time for a bigger plant. Switching to a bloom feed early can induce flowering in autos.
Feed autos at 1/4 strength and work up.

so are you saying to use NO BLOOM?

Smoke Signal said:

hey guys! you guys rock!
Stip and white thanks!
just went to store. got botanicare cal/mag plus.
they say its the best because it has alot of other minerals as well.
guys at store say they use calmag every feed from beging.
they are budding now. just started a week ago.
so doing flora bloom general hydroponics.
will do what u say. 1/4 strength and work up.
give 10 days for flush before harvest.
also might use molases like you said. heard it works well. sugar.
im good on light. 1,000 watt. good temp finally. 78-84. put in cooled hood.
thanks again everybody!! will post pics in a week or 2.

Click to expand...

If its still growing taller feed her veg nutes until she stops stretching, then when she has stopped flush her until the ppm is below 100...then give her a half strength does of flowering nutes and watch her take off....also every watering don't forget to ph test your water, ppm test and make the temperature Luke warm..oh all don't forget your cal mag and silika and every 3rd water give her some molasses...You will have some happy plants, please post on your progress!

Smoke Signal said:

White???

Feed them. Run veg nutes til the end. It will extend veg time for a bigger plant. Switching to a bloom feed early can induce flowering in autos.
Feed autos at 1/4 strength and work up.

so are you saying to use NO BLOOM?

Click to expand...

Oh and flushing helps get rid of excess salt build up and helps stabilise the ph...and the plants friggin love it!! Flush your plants at the start of flowering, the middle and the end....everytime you flush bring the ppm down as low as you can...and the final flush go right to town..you want the ppm at zero if you can. Then give the last does of water some molasses and it will make the buds taste sweet.

Stip thanks. Im doing another batch and am going to follow your instruction. but whats going on now with the yellow budding ones. .
the cal mag did nothing. they are dry planet material stretched and yellow.
this usually dosnt happen.
The new ones are still short and green. not stretching.
what i think maybe is wrong with bud batch is i left the lights on 24 for 2 months.
they stretched and got stressed. maybe?? but i am running HPS straight thru. DO YOU
SWITCH from MH to HPS when bud time?

and as far as flushing. how do you do that? ive been bringing bags to kitchen sink and give them alot alot of water. or room will be flooded. or do i water regular for a week or two?

thanks.

Smoke Signal said:

Stip thanks. Im doing another batch and am going to follow your instruction. but whats going on now with the yellow budding ones. .
the cal mag did nothing. they are dry planet material stretched and yellow.
this usually dosnt happen.
The new ones are still short and green. not stretching.
what i think maybe is wrong with bud batch is i left the lights on 24 for 2 months.
they stretched and got stressed. maybe?? but i am running HPS straight thru. DO YOU
SWITCH from MH to HPS when bud time?

and as far as flushing. how do you do that? ive been bringing bags to kitchen sink and give them alot alot of water. or room will be flooded. or do i water regular for a week or two?

thanks.

Click to expand...

I do not run a tap into my medium, I fill a jug and gently tip water onto the medium. Sounds like if your plants are stretched and yellow that it could be a few different things...If its the bottom leaves it could be a lack of nitrogen. But it could also be nutrient lock out from your ph being too high. Certain nutrients are locked out if the ph is too high. Sounds like to me that you should start again...and even before you start again work out a proper nutrient schedule, part a and b grow and part a and b for bloom...they are your base nutrients, calmag, silica and also boosters...Buy a calendar and map out what you are doing to your plants, this way its much easier to work out what you are doing wrong. Get some normal seeds and not autos...there is much more room for mistakes with these and they are much more tolerant of nutrients. Remember all plants need three things- Water, food and light. Light is the most important factor, then water and wood. So plant your seeds, grow them until you see signs of sex(pistols hopefully, you should always buy feminised seeds) and when you see the hairs its time to flip her to 12/12. But make sure you always have NO light leaks and do NOT overwater your plants.

Try this-

Medium- coco coir, this is the shit...its ph neutral, has awesome draining abilities and is reusable. It also is very easy to adjust your ppm and ph, very easy.


Lights- You cannot have enough and it doesn't matter too much about spectrum at your stage.

Watering system- Do it by hand to start off with, at least for a grow or two. This way you can understand the tendencies of the behaviour of coco.

Nutrients and feeding- Start with a grow pack from brands that specialise in marijuana growing, like Advanced nutrients for instance. Go to your local hydro shop and ask them what you should feed and when and get the brands then order them online as grow shops are a complete rip off!

I feed everytime I water, but flush between veg and flower....when they are in heavy bloom and then 2 weeks before harvest.

Keep everything simple to start with until you get some nice healthy plants...You will not get good buds from unhealthy plants. I hope this helps, sorry to tell you to start again..but those plants look fucked and you have no room for failure with autos....

I have one Tran Siberian Auto that has markings similar and identical towards the bottom and middle without using Calmag when entering flowering or a bit earlier, I am in DWC though and use RO water...but whoever said autos don't need much or anything is wrong. While they do need less, they still need it in proportion to the size of the plants and strain's genetics.