Forum Shop Market
Seeds FAQ Tools
SEE OUR MARIJUANA SEED GUIDE FOR THE BEST STRAINS
Looking for Legal Marijuana look no further!
Go Back   Marijuana Growing > The Grow Room > Marijuana Plant Problems


Reply
 
LinkBack Thread Tools Display Modes
  #1    
Old 09-20-2009, 05:40 PM
Brux013's Avatar
Marijuana Toker
Marijuana Toker
Brux013 is offline
 
Join Date: Jan 2008
Posts: 130
Brux013 will become famous soon enough
Points: 2,070, Level: 6 Points: 2,070, Level: 6 Points: 2,070, Level: 6
Activity: 0% Activity: 0% Activity: 0%
Default Checked FAQ, still a little confused. Diagnosis?
Hey rollitup,

I've tried diagnosing the problem before asking the question. The problem looks anywhere from phosphorus, zinc deficiencies to ph fluctuation. However I'm not really too sure.

Here are 3 picture of 3 different plants.

1st one is the oldest, the next 2 are two of the same age, all still in vegetation.

The set up consists of 3 10w soft whites, 3 23 or 27 watt (cant remember) daylights, and 2 23 or 27 watt (can't remember again) warm whites. Two fans blowing on the plants/lights. Water frequently throughout the week, standard nutes once or twice a week. (nutes aren't really anything wowish, probably just store brand tomato nutes for now)

Appreciate the look guys. And thanks in advance for the help
Attached Images
File Type: jpg DSCF0852.jpg (57.3 KB, 21 views)
File Type: jpg DSCF0853.jpg (68.7 KB, 18 views)
File Type: jpg DSCF0854.jpg (86.7 KB, 19 views)
Reply With Quote
  #2    
Old 09-20-2009, 06:23 PM
Stranger
Stranger
ottertalkn is offline
 
Join Date: Jun 2009
Location: East Coast
Posts: 16
ottertalkn is on a distinguished road
Points: 481, Level: 3 Points: 481, Level: 3 Points: 481, Level: 3
Activity: 0% Activity: 0% Activity: 0%
A few questions. In the second pic, is that burning on the ends of the leaves? Is it prominent throughout the plant?

Are the symptoms you identified throughout the entire plant, or just at the bottom? You growing outside or indoors?

Without seeing the plant further, there could be a couple of issues, but I think it looks like you've got a nutrient buildup that is toxic for the plant. It could be something as simple as the EC of your water being way high, to the store bought tomato nutes creating a nutrient imbalance.
Reply With Quote
  #3    
Old 09-20-2009, 08:03 PM
Brux013's Avatar
Marijuana Toker
Marijuana Toker
Brux013 is offline
 
Join Date: Jan 2008
Posts: 130
Brux013 will become famous soon enough
Points: 2,070, Level: 6 Points: 2,070, Level: 6 Points: 2,070, Level: 6
Activity: 0% Activity: 0% Activity: 0%
Quote:
Originally Posted by ottertalkn View Post
A few questions. In the second pic, is that burning on the ends of the leaves? Is it prominent throughout the plant?

Are the symptoms you identified throughout the entire plant, or just at the bottom? You growing outside or indoors?

Without seeing the plant further, there could be a couple of issues, but I think it looks like you've got a nutrient buildup that is toxic for the plant. It could be something as simple as the EC of your water being way high, to the store bought tomato nutes creating a nutrient imbalance.
Thanks for the reply. In regards to the second picture, it is more abundant on the older leaves, the newer ones not so much. The leaves are somewhat crispy. It might be due to the lights, but I'm not sure. The temperature is 80-84F. and Humidity is around 40%. (Also grown indoors.)

The first picture has spots on the older leaves. None on the newer ones. Hope that helps to better explain the problem
Reply With Quote
  #4    
Old 09-21-2009, 07:44 PM
Stranger
Stranger
ottertalkn is offline
 
Join Date: Jun 2009
Location: East Coast
Posts: 16
ottertalkn is on a distinguished road
Points: 481, Level: 3 Points: 481, Level: 3 Points: 481, Level: 3
Activity: 0% Activity: 0% Activity: 0%
I think you may have a potassium deficiency. If a plant has a potassium def., usually you will see healthy dark green foliage with the younger leaves, with the leaf margins of older leaves turning rusty brown with development of rust colored spots. The tell tale sign, or at least my experience is the stems become weak and brittle.

The way this happens is fluxing pH (best to keep around 5.7 - 6.3) and the Potassium gets locked in soil by using water with high salinity. Do you have a water softener in your house? I had that issue and had to start using distilled water. It got expensive, so I bought a distiller and no problems since.

I hope this helps
 

Tags
checked, confused, diagnosis, faq

Thread Tools
Display Modes

Thread

Thread Starter

Forum

Replies

Last Post

FAQ Suggestions ~ FAQ Suggestions ~ FAQ Suggestions ~ FAQ Suggestions nongreenthumb Toke N Talk 37 11-18-2009 05:11 PM
little confused about yield and lights Nike617 General Marijuana Growing 45 09-15-2009 04:07 PM
Superdazed And Confused Need Help! keepittrucckn420 Newbie Central 3 10-10-2007 04:13 PM
Whats up with this Erniedytn Politics 17 07-22-2007 12:26 AM
So what does everyone think about... Zekedogg Spirituality & Sexuality & Philosophy 63 05-24-2007 04:49 PM

Posting Rules

You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Come Check out a new Poker Forum for the online poker community

All times are GMT -7. The time now is 03:56 PM.
Powered by vBulletin
Copyright © 2000-2009 Jelsoft Enterprises Limited.

Content Relevant URLs by vBSEO 3.3.2