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OfflineSatya
Stranger

Registered: 11/13/19
Posts: 1
Last seen: 2 months, 10 days
Leaves yellowing rapidly, and spots? Help!
    #842585 - 01/24/20 04:28 AM (2 months, 13 days ago)

I have 12 plants half of the tent is ak48 the other is
Gorilla glue, And cookies. The ak48 were the first
and now the rest have started to Do the same.

Is it normal nitrogen pulling? 
They are 4 weeks into flower

1. Are you growing from seed or clones?
Seed (singleseedcenter)

2. How old are your plants?
3 months  ( 4 weeks into flower)

3. How tall are your plants?
About 2 feet

4. What size containers are they planted in?
5 gallon

5.What is your soil mix? 

Happy frog

6. How often do you water and what type of water do you use and how much you give per watering?
Now that they’re flowering hard about 1/2 gallon every 3 days or so R/O water

7. What is the pH of your water?
6.5

8. What kind of fertilizer do you use and what is its NPK ratio?
Using general organics line. Been 1/2 strength now at 3/4 strength.

9. Do you foliar feed or spray your plants with anything?
Sprayed them with mercenary natural pesticide once,
Right before this started happening

10. What kind of lights do you use and how many watts combined? (HPS, MH, fluorescent, halogen, incandescent "plant lights") 2 1000w hps dimmed down to 600-750 depending on temps

11. How close are your lights to the plants?
2 ft from top cola

12. What size is your grow space in square feet?
4x8

13. What is the temperature and humidity in your grow space?
Around 75 degrees 35% ( goes up a little when lights are off going to start using denim )

14. What is the pH of the soil?
Not sure
15. What is the pH of your run off?
Not sure

16. Have you noticed any insect activity in your grow space?
Roommate had mites on a plant in the house so I got hella lady bugs and sprayed mercenaries about a week ago.




Edited by Satya (01/24/20 05:36 PM)


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OfflineTheDudeness
Stranger
Registered: 02/23/20
Posts: 10
Last seen: 10 hours, 16 minutes
Re: Leaves yellowing rapidly, and spots? Help! [Re: Satya]
    #843284 - 02/25/20 09:36 PM (1 month, 11 days ago)

Looks like nitrogen deficiency. At 4 weeks you should be at full strength nutes and start backing them off at week 6 and by week 8 or 9 (strain depending) should be just straight water or nutrient flush.  But the black spots with the yellowing could be mites as well since you mentioned it, as well as nute deficiency. Check the leave super close with a magnifying glass and see if your have your pests under control. And up your nutes to full strength for a few waterings and see if that don't help the issue. Again this is just in my experience. Your experience may vary. But it'd be a good starting point.


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OfflineCannabrainz
Grower
I'm a teapot

Registered: 12/25/19
Posts: 53
Last seen: 11 hours, 29 minutes
Re: Leaves yellowing rapidly, and spots? Help! [Re: TheDudeness]
    #843289 - 02/25/20 11:31 PM (1 month, 11 days ago)

Give it a CalMag dose Or Epsom salt. That's Mg deficiency. Mild dose calmag and up the PK's to combat the nitrogen climb. The best part is more pk absorption with more Mg.


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OfflineTheDudeness
Stranger
Registered: 02/23/20
Posts: 10
Last seen: 10 hours, 16 minutes
Re: Leaves yellowing rapidly, and spots? Help! [Re: Cannabrainz]
    #843291 - 02/25/20 11:52 PM (1 month, 11 days ago)

Yeah definitely a mg deficiency. It's been so long since I've had to differentiate different deficiencies just by glance I went for nitrogen.  Good call Cannabrainz!


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OfflineCannabrainz
Grower
I'm a teapot

Registered: 12/25/19
Posts: 53
Last seen: 11 hours, 29 minutes
Re: Leaves yellowing rapidly, and spots? Help! [Re: TheDudeness]
    #843351 - 02/27/20 11:52 PM (1 month, 9 days ago)

Thanks, Been growing for a while. Kinda is habit.


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Cannabis, Marijuana, Ganja & Greens >> Cannabis Cultivation

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