Well you got some leaf miners. They are little bugs that tunnel. Kill any you see. If really bad you may have to treat as a easier option. 🤞 it is easy for you to get it under control. Good luck and happy growing 🌱
first use bacillus thurigiensis 3 days after 1 aplication of neem oil, 7 days later bacillus thurigiensis again and 7 days later neem, the leaves are not going to get better but you'll kill them
That right there is a leaf miner. I use rusted nails to keep them away at roots. https://www.google.com/search?q=what+bug+eats+the+photosynthesis+away+on+cannabis+plants&rlz=1CDGOYI_enUS917US917&hl=en-US&prmd=ivsxn&sxsrf=AOaemvLWSGaFdqr1J6Tpkb6mYf-kV6CHGQ:1636387816419&source=lnms&tbm=isch&sa=X&ved=2ahUKEwiM8IvUk4n0AhXZB80KHVjQAGYQ_AUoAXoECAIQAQ&biw=414&bih=622&dpr=3#imgrc=bZYycIH2SUWWVM. They don’t destroy much to worry about unless you are infested with them
Leaf miners ( moths). No need for pesticide just gently crush with nails the end of the tunnel and kill the worm. But remember this bug cannot do serious damages to plant so stay relaxed.