How to get rid of pests with out chemicals?

Thank all of you for the input. This is the first time I have successfully grown any thing. So I have a long way to go before I even come close to knowing what I'm doing.

We do have a cat but I did just top them. So that's probably what it was. It was just on 2 plants and 2 of the leaves had small pen holes in it. I trimmed off the bad parts last night and today they seem to be doing great.

This is not aphid or spider mite damage, both of them suck sap, not eat leaves. Do you have a cat??

Use essential oils! I use products like lost coast plant therapy, mercenary, and Athena ag ipm—- these are all essential oil based ipms! You need an IpM regimen

Yeah I think BG is probably right. If you topped or fimmed it looks like damage from that. If you want some natural pest and fungus management I recommend Green Cleaner or Lost coast plant therapy.. all natural stuff like that is a great option for preventative pest management. I’d recommend something like that anyhow if you’re worried about your indoor grow area possibly having bugs or pests

Fill spray bottle with water add a tablespoon of dish soap and spray the tops and bottoms of leaves. The soap will dehydrate aphids and spider mites. You can also use Pyrethrum spray This natural insecticide is made from dried chrysanthemum flowers. Mix the powder with water and dish soap to create a spray. Pyrethrum spray paralyzes flying insects on contact.