Discoloration of leaves (aphids maybe?)

[growingsomething]

Hi there attached are some pictures of my plant which is doing well except for a few sets of leaves which are turning brown/ black. I saw some tiny green bugs on the bottom of the leaves and I'm wondering what I should do.
Thanks

 

[Pbass]

Neem oil spray the crap out of them to start! Once I went in my room after dark on a fluke and found crickets on my buds it was gross! Get on a good regimen of preventative spray, their eggs live on after you kill the first batch. I tend to find bugs, spray for a while, get lazy, get more bugs. No bueno! If you can get a closeup of one of the critters we can help id it. CHeers mate, gl.

 

[growingsomething]

I'll try some neem spray thanks man