what are these markings on leaves???

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!!!

Looks like some sort of nute issue and some sort of insect eating your leaves. I would say to check your ph and ppm of your growing medium to make sure it's not a ph issue causing lockout and thoroughly inspect for insects. Good luck

i am using foxfarm soil trio (https://www.icmag.com/ic/showthread.php?t=15109). With my latest feed I gave it the recommended dosage for week 6 at half-strength! I cannot follow this table exactly as my plants germinated already nearly 4 months ago! I am in my 3rd week of flowering now.

My water is at a ph of 6.7ish, however, as for the ph of my nute solution and soil i cannot give you a definite answer as my ph scale tester only does measurements in jumps of 0.5 (5.0,5.5,6.0,etc).

Thanks for your help and any other comments you may have will be greatly appreciated!

Peace!!