What are these markings on leaves?

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derkaderk

New Member
Hey guys, i've been noticing abnormal markings and colourings on some of the lower leaves on my outdoor cannabis plants?

My plants are in the early flowering stage.

Can anyone out there help me identify what these marking/ colourings indicate or what they are caused from??

Also, will they harm my plants??

Appreciate any help you guys have to offer!

Peace!!!

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Re: what are these markings on leaves???

they yellow spots with rust could be a calcium deficiency. the yellowing between the veins could be a magnesium deficiency.

Dolomite lime/garden lime would provide both.

I always defer to a good plain water flush (in case it is a PH related issue) and then fertilize with something that has magnesium in it.

But otherwise she is fine.

*disclaimer

I don't grow outdoors
 
if you look in my signature below their is a link that takes you to a page that shows all the problems you might be having and tells you how the problem is solved, you should be able to narrow it down more using the links below in my sig
 
~ Have you checked your PH run off when feeding? The pictures looked more like lock out then it did from deficiency under / over feeding.
I had that problem one time and I just had to adjust the PH in the soil and add more N and Micro nutes.

however, thats a good size main stem you have on the plant...it just might very well be what Scarfinger suggest to you. Cause that plant is taking up nutes with that stem for sure... and I agree CAL/MAG solution might just do it. I will keep looking in and see how that works out for you...interested for sure...Subb'd
:goodluck:
 
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