My plant leaf problem

[copter]

First, my english is bad, for reason I'm to sorry

My plant is white widow and it is 3 week old. I'm growing it in soil under the 400W HPS. This week, it was ill. Some of brown/grey points become to create on the leaf. And now points are converting to green point.
How can i fix that problem?
Thanks,

 

[Hank Hemp]

http://www.icmag.com/ic/forumdisplay.php?f=83 check this out. Sometimes lower leaves will yellow like that. http://www.icmag.com/ic/showthread.php?t=11688 this is a good site.

 

[outlier]

Hey copter. I'm new to growing myself. However this looks alot like a problem I just had and fixed. What is you humidity? If that is within a correct range then it is very likely a magnesium deficiency. If your ph is too low then you'll lock out mag. You might also want to look into a cal/mag supplement. The second like Hank Hemp posted has been a GREAT resource for me!

 

[grapeman]

I wouldn't jump to any drastic remedies just yet. Looks like the new growth is just fine and the brown spots could very well be water spilled on the leaf when you last watered the pots, leaving a spot or 2. If you think it is a mg deficiency (doesn't look like that to me) then you can spray a mist of water and epsom salts on the leaves in the morning at a rate of 1/2 teaspoon to 1 quart of water. That rate cannot hurt anything and you don't have to mess with what's going on in your soil until you are sure what's wrong.... if anything.

 

[Reverend Mojo]

then it is very likely a magnesium deficiency.

Yep.. Or your pot is too small for the plant and it is root bound. Either way, I would repot to a 5 gallon with new and compost rich soil.

 

[Spl1fftast1ck]

listen to this guy

listen to this guy

I wouldn't jump to any drastic remedies just yet. Looks like the new growth is just fine and the brown spots could very well be water spilled on the leaf when you last watered the pots, leaving a spot or 2. If you think it is a mg deficiency (doesn't look like that to me) then you can spray a mist of water and epsom salts on the leaves in the morning at a rate of 1/2 teaspoon to 1 quart of water. That rate cannot hurt anything and you don't have to mess with what's going on in your soil until you are sure what's wrong.... if anything.

Yeah (what grapeman said) don't jump to remedy just yet. You say your new, better recheck all your environmental factors first, like ph, heat, humidity, etc.. maybe tell us what your "soil" consist of.

good luck
Spliff

 

[MONKIE_304]

When ever I had those on my plants I would just cut the dieing parts off and then they will just grow just fine... But that's me I wouldn't worry about that since it's still a little one.

 

[baan]

Check all of your basics. How much water? Get some ph supplies and check the acidity of your soil. Is the soil that you are using good? How is root development? Are you using any supplemental nutrients (are you fertilizing), and if so what is being used? What are the temperatures, and how is the ventilation?

Sometimes you can figure out what the problem is by reviewing your basics. I just had some plants in soil that was overwatered and their root development was slow as a result, and they then showed symptoms of nutrient deficiency. By understanding all of the basics, you can solve the problem itself instead of just treating its symptoms.

Judging from the pictures alone I'd say that your plant will be fine, but let us know how it goes.