Northen Light Problem

[Davano]

Hello All,


I have some Northen Light autoflowers.
Now some leafs sow some dis forming.
Any one no what is wrong with my plants?
I use Canna Bio Vega plant food. Uploaded some pic to show the probblem.



Greet Davano

 

[Heavily Medicated]

From what I can tell, I would say that you have the beginnings of a Ca def. Plant looks good other than those little white spots and the leaf margin on one leaf. The bottom leaf margin looks like it got some nute/soil contact to me, nothing to be concerned abolut no worse than is and that's the only leaf effected. If the spots are a Ca def, the spots will probably turn brown. The effected parts of the leaves will never get better, but you can stop the spread to uneffected leafs. Don't know if it's a def caused by lack of the nute in the medium, or plenty in the medium, but pH locked so the plant can not take it up. Best to check pH of the medium, then progress with a treatment program. Do you pH your feed/water? What is your medium composed of, and how much have you been feeding? How old is your girl? A couple more pics of the whole plant and any more effected leafs would be helpful also. What is your lighting, LED munches tons of Ca and Mg. I've grown alot of NL, very vigorous strain that can take alot of stress and still produce well. Give me some more pics and the above info, I will be better able to help.

 

[Davano]

From what I can tell, I would say that you have the beginnings of a Ca def. Plant looks good other than those little white spots and the leaf margin on one leaf. The bottom leaf margin looks like it got some nute/soil contact to me, nothing to be concerned abolut no worse than is and that's the only leaf effected. If the spots are a Ca def, the spots will probably turn brown. The effected parts of the leaves will never get better, but you can stop the spread to uneffected leafs. Don't know if it's a def caused by lack of the nute in the medium, or plenty in the medium, but pH locked so the plant can not take it up. Best to check pH of the medium, then progress with a treatment program. Do you pH your feed/water? What is your medium composed of, and how much have you been feeding? How old is your girl? A couple more pics of the whole plant and any more effected leafs would be helpful also. What is your lighting, LED munches tons of Ca and Mg. I've grown alot of NL, very vigorous strain that can take alot of stress and still produce well. Give me some more pics and the above info, I will be better able to help.

Thanks for the reply,

I use soil for medium.
As i understand, when you use Bio feed you don't have to change the PH of the medium or water. Is this correct?
I just checked the PH of my soil, it is PH 7.0
I have been feeding 3ml of food on 1.7 liter of water. According to Canna i have to feed 3ml on 1.5 liter of water, so u use just a little less the Canna suggest.
I started from seed on 1st of august.
The plans are outside, so i use sunlight.
Hope the pics are clear enough.



Greet Davano

 

[Cat]

I've just finished Northern Lights auto and they are very hardy. I would agree with heavily Medicated, yours look like they're needing calmag. However, if Canna say 3ml per 1.5litres, it's best to start off at about 1ml per 1litre as they always over estimate to encourage us to use more nutrients. I've been growing in coco, so I don't have a clue about feeding nutrients in soil, but I'm sure some others will be able to help.

 

[Davano]

Thanks for the repy,

Then from now on i will give the plans less food.
I also thought is was calmag problem, but i am a total noob when it comes to growing, so i would like to be sure, before i add calmag.

Greet Davano

 

[Heavily Medicated]

If your medium pH is 7.0, then yes you need to add some type of Cal/Mg supplement. I know there are some organic sources of Ca and Mg, but I am just starting my first organic grow too. I've been hydro for years, and wanted to try the organic grow. @Eyes on Fire is really great organic grower, he will probably chime in soon.

 

[Eyes on Fire]

been a long time since Ive grown a NL cross or anything LOL but aside from a bit of calmag GO cal mag+ and/or equilibrium ( best used in combo esp through flower with EQ ) looks like you have a few small issues popping up potentially from what I see in the pics. small pest nips and lacking of the foods in the soil if this is organic.but organics in a bottle I cant really help you that much to be honest. PH'ing and bottle feeds I havent done in years LOL but as a precaution get a SNS-209 product or similar system or systemic protection. OD grows ALWAYS need a hand if the soils not full on BANG with life with pests n such. and a tea or similar would be good,pale green with splotchy patches means lack of foods and possibly swaying of PH. But Im for the foods personally. yet waira is the guy to ask if he sees a small PH issue creeping up,thats not my field. PH and true organics dont mix usually. and remember,OD sunlight grows coupled with heat will yank them foods right out of the plant and soil if its hot too. so. hope that helps.

 

[Waira]

good calls mates! :smoking:
>> Dav' -- I see nothing significant for defc.'s, however in pic 11, that white speckling needs a closer pic taken please,.. it looks like a little thrip damage maybe? How did you take your soil pH? At 7.0, it's a bit too high, and Fe/Zn defc. can start rapidly in soil grows at this pH; they are the first things to lock-out at that pH range.... light/camera can play tricks, but the tops do seem a bit light in color, signs of potential mentioned lockouts...
.. you feed dosage will depend partly on how rich you soil is to begin with, and how conc. your nute's are,.. staying weak consistently is not always a good policy, so you can ease the conc. up gradually over several feeding, and watch carefully how they respond.. look for yellowing at the very tips, that's a sign you near the limit they can take,.. ease back some when you do so as to not push your luck until your skills and familiarity with plant and products gets better!

 

[Davano]

been a long time since Ive grown a NL cross or anything LOL but aside from a bit of calmag GO cal mag+ and/or equilibrium ( best used in combo esp through flower with EQ ) looks like you have a few small issues popping up potentially from what I see in the pics. small pest nips and lacking of the foods in the soil if this is organic.but organics in a bottle I cant really help you that much to be honest. PH'ing and bottle feeds I havent done in years LOL but as a precaution get a SNS-209 product or similar system or systemic protection. OD grows ALWAYS need a hand if the soils not full on BANG with life with pests n such. and a tea or similar would be good,pale green with splotchy patches means lack of foods and possibly swaying of PH. But Im for the foods personally. yet waira is the guy to ask if he sees a small PH issue creeping up,thats not my field. PH and true organics dont mix usually. and remember,OD sunlight grows coupled with heat will yank them foods right out of the plant and soil if its hot too. so. hope that helps.

Thanks for the reply,

Then i think it has been the weather, it was 25C+ for 10 days and only feeded ones, so that is my mistake!

good calls mates! :smoking:
>> Dav' -- I see nothing significant for defc.'s, however in pic 11, that white speckling needs a closer pic taken please,.. it looks like a little thrip damage maybe? How did you take your soil pH? At 7.0, it's a bit too high, and Fe/Zn defc. can start rapidly in soil grows at this pH; they are the first things to lock-out at that pH range.... light/camera can play tricks, but the tops do seem a bit light in color, signs of potential mentioned lockouts...
.. you feed dosage will depend partly on how rich you soil is to begin with, and how conc. your nute's are,.. staying weak consistently is not always a good policy, so you can ease the conc. up gradually over several feeding, and watch carefully how they respond.. look for yellowing at the very tips, that's a sign you near the limit they can take,.. ease back some when you do so as to not push your luck until your skills and familiarity with plant and products gets better!

Thanks for the reply,
I used a: Nature Ph-Meter Digitaal
https://www.google.nl/search?q=Nature+Ph-Meter+Digitaal&rlz=1C1PRFB_enNL456NL465&espv=2&biw=1600&bih=770&source=lnms&tbm=isch&sa=X&ved=0ahUKEwiA0uTcop7PAhVEAsAKHRfEAwwQ_AUIBigB#imgrc=WmUFPR1pWYoauM:
You are completely right that the tops are a bit lighter then the rest of the plant.
The pic are all of one plant.

Greet Davano

 

[Waira]

...Hmm, that's not bug damage,.. looks like some older physical damage, so no worries there,... did you test the run-off then, to get soil pH?