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06-21-2012, 01:01 PM #1OPJunior Member
Any suggestions as to why this is happening?
Hi,
I am new to this. I am in week 2 of my cycle. I have noticed yellow spots on my leaves. Please see the attached pictures. I am using a 400 watt system wtih Miracle Gro potting soil (which I will not use again). I have currently 4 plants growing with the light about 9 inches above the plants with 1 light centered in the plants for the lower leaves. I have not added any chemicals other than today. Any advice would be appreciated.mainegrower Reviewed by mainegrower on . Any suggestions as to why this is happening? Hi, I am new to this. I am in week 2 of my cycle. I have noticed yellow spots on my leaves. Please see the attached pictures. I am using a 400 watt system wtih Miracle Gro potting soil (which I will not use again). I have currently 4 plants growing with the light about 9 inches above the plants with 1 light centered in the plants for the lower leaves. I have not added any chemicals other than today. Any advice would be appreciated. Rating: 5
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06-21-2012, 03:01 PM #2Senior Member
Any suggestions as to why this is happening?
Do you mean week 2 of 12/12 light cycle? Looks like you might have spider mites. Some times changing the light cycle will bring those little bastards on.(happened to me a couple of times)....Get you a Shell No Pest Strip or two (the active ingredient is Dichlorvose) and hang it in your grow room....Does the trick for me.
Also, you might have that 400 watt light a little too close to the plants....Notice the rolled up edges on the leaves? If nothing else, I'd say you got some heat stress going on.
What are your temps?...How about ventilation?...Got any moving air in the grow room?
The MG ain't really all that bad...You just gotta be careful how you feed.
PEACE.............J
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06-21-2012, 07:10 PM #3Senior Member
Any suggestions as to why this is happening?
Clearly a Ca/Mg issue. That will curl the leaves upward.
If those were mite problems he wouldnt be asking it would be apparent due to all the bugs and webs....at least I hope.[align=center]Keep on Keepin on, it will all come together.[/align]
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06-22-2012, 09:00 PM #4OPJunior Member
Any suggestions as to why this is happening?
Thank you for the help.
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06-22-2012, 09:01 PM #5OPJunior Member
Any suggestions as to why this is happening?
Thank you for the advice. I will look into this further. And yes it is a 12/12 cycle
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06-22-2012, 10:01 PM #6Junior Member
Any suggestions as to why this is happening?
Originally Posted by mainegrower
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07-31-2012, 05:08 PM #7Member
Any suggestions as to why this is happening?
Use tap water and you won't get cal/mg issues.
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