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Offlinesupershroomer
Stranger
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Registered: 12/20/09
Posts: 4
Last seen: 14 years, 7 months
Crisp upturned leaves, brown and yellow spots, newbie grower NOW W/ PICS
    #334179 - 12/20/09 08:32 PM (14 years, 10 months ago)

1. Are you growing from seed or clones? SEEDS
2. How old are your plants? 2 MONTHS
3. How tall are your plants? 17 inches
4. What size containers are they planted in? 10 gallon
5. What is your soil mix? Miracle Gro Moisture Control/Miracle Gro Organic
6. How often do you water and what type of water do you use? Tap Water every other day 
7. What is the pH of your water?  Don't know
8. What kind of fertilizer do you use and what is its NPK ratio?  No idea
9. Do you foliar feed or spray your plants with anything?  Nope
10. What kind of lights do you use and how many watts combined? (HPS, MH, fluorescent, halogen, incandescent "plant lights") 400 w MH, 400 w HPS, 150 HPS, 100 MH, 70 HPS= 1120 WATTS
11. How close are your lights to the plants?  18-24 inches on 3 sides
12. What size is your grow space in square feet? 12 sq feet
13. What is the temperature and humidity in your grow space? It's probably in the mid 80's.
14. What is the pH of the soil?  No idea
15. Have you noticed any insect activity in your grow space?  No
16. How much experience do you have growing?

I received two of these plants from a friend at the end of November.  They were about 8 inches tall.  Since then I've transplanted them twice, once into a 3 gallon and then a 10 gallon. 

I started off with Miracle Grow Moisture Control.  After spending some time on this site I've recently switched to Miracle Gro Organic.  They are in a closet approximately 2x5x6.  I have a 400 w HPS, a 400 w MH, a 150 HPS, 70 HPS, and a 100 MH. 

Today I noticed that some of the leaves are turning crispy, upturned, and yellowing with brown spots.  Any idea's on what the problem could be?  My lights were about 18" above the plants.

For some reason it says this when I try to upload my pictures-

There were problems with your upload:
photo-2.jpg was not of the allowed file type (image/jpeg) and was not saved.

Any ideas would be gratefully appreciated.  Thanks!

Edited by supershroomer (12/21/09 07:15 PM)

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OfflinePilze
Funky Monk


Registered: 10/11/09
Posts: 770
Last seen: 11 years, 5 months
Re: Crisp upturned leaves, brown and yellow spots, newbie grower [Re: supershroomer]
    #334186 - 12/20/09 08:40 PM (14 years, 10 months ago)

Quote:

supershroomer said:5. What is your soil mix? Miracle Gro Moisture Control/Miracle Gro Organic
6. How often do you water and what type of water do you use? Tap Water every other day
7. What is the pH of your water?  Don't know
8. What kind of fertilizer do you use and what is its NPK ratio?  No idea




this is your problem.

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InvisibleHawksresurrection
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Registered: 12/04/08
Posts: 13,464
Trusted Cultivator
Re: Crisp upturned leaves, brown and yellow spots, newbie grower [Re: supershroomer]
    #334188 - 12/20/09 08:41 PM (14 years, 10 months ago)

So a few issues here.  You don't know what kind of fertilizer you're using??  And apparently you're not checking the pH of your water. 


If you don't get these parameters under control it's hard to pinpoint your problem.  A guess though would be that your pH is off as well as your soil is probably a bit hot in the way of nutrients.


I sounds like you've put some money into have a few HID lights, why not invest some in a pH tester.  This will help you tremendously.  Also I would recommend switching over to Fox Farm soil.  Get away from MiracleGrow all together man.


--------------------
Dude she isn't as young as she use to be.

-niteowl

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InvisibleMystery420
Guerrilla grower
Male User Gallery


Registered: 09/08/09
Posts: 39
Loc: United kingdom
Re: Crisp upturned leaves, brown and yellow spots, newbie grower [Re: Hawksresurrection]
    #334302 - 12/21/09 12:59 AM (14 years, 10 months ago)

Its hard to tell whats wrong with your plants unless we see a pic. Have you tried up loading to your gallery then placing a link in here?

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OfflinePilze
Funky Monk


Registered: 10/11/09
Posts: 770
Last seen: 11 years, 5 months
Re: Crisp upturned leaves, brown and yellow spots, newbie grower [Re: Mystery420]
    #334307 - 12/21/09 01:14 AM (14 years, 10 months ago)

with all of those lights, it could be the heat.

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Invisiblecoda


Registered: 04/20/08
Posts: 4,736
Trusted Cultivator
Re: Crisp upturned leaves, brown and yellow spots, newbie grower [Re: Pilze]
    #334596 - 12/21/09 04:58 PM (14 years, 10 months ago)

Upturned, or "taco" leaves are generally a sign of heat stress/poor ventilation.


--------------------


MFDoom666: sobriety kills my buzz every time.

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Offlinesupershroomer
Stranger
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Registered: 12/20/09
Posts: 4
Last seen: 14 years, 7 months
Re: Crisp upturned leaves, brown and yellow spots, newbie grower [Re: coda]
    #334670 - 12/21/09 07:16 PM (14 years, 10 months ago)






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OfflinePilze
Funky Monk


Registered: 10/11/09
Posts: 770
Last seen: 11 years, 5 months
Re: Crisp upturned leaves, brown and yellow spots, newbie grower [Re: supershroomer]
    #334708 - 12/21/09 08:11 PM (14 years, 10 months ago)

looks like nute burn, but im not a noob. :shrug:

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OfflineDudeTron
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Registered: 10/24/09
Posts: 407
Last seen: 10 years, 10 months
Re: Crisp upturned leaves, brown and yellow spots, newbie grower [Re: Pilze]
    #335457 - 12/23/09 08:27 AM (14 years, 10 months ago)

Looks just like my leaves did: 

PH was off... suspected cal-mag lockout due to high PH

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