brown spots on leaves?

J

Jdubs

Member

• Apr 11, 2010

• #1

I have a month and a half old plant that is showing brown spots on the first couple sets of big leaves. You can see the spots in the picture I posted with this thread. Any idea what it is? Remedy? THANKS

 

indipow82

Well-Known Member

• Apr 11, 2010

• #2

Looks like the start of mag def...

 

rzza

Well-Known Member

• Apr 11, 2010

• #3

out of 20 girls i just found a leaf that looks just like that. its just one leaf on one plant. i add cal mag with their feeding so i doubt thats it.

 

J

Jdubs

Member

• Apr 11, 2010

• #4

rzza said:

out of 20 girls i just found a leaf that looks just like that. its just one leaf on one plant. i add cal mag with their feeding so i doubt thats it.

Click to expand...

the spots are located on a number of leaves in my case. only on the lower leaves though.

 

stonesour

Well-Known Member

• Apr 13, 2010

• #5

Jdubs said:

the spots are located on a number of leaves in my case. only on the lower leaves though.

Click to expand...

This just happened to mine, it was caused by a build up of nutes effecting the ph. Do a good flush with ph'ed water of 6.5 and start over with half nutes after 4-5 days. thats what im doing now. good luck.

 

researchkitty

Well-Known Member

• Apr 13, 2010

• #6

With the spots where they are, either flush or magnesium generally. Seems like you wouldnt be nutrient burning your plants though at only 6 weeks old, though. Whats your ppm and grow environment like?