Aphids are the bane of my existence. Lately, I've been battling them on my dragonfruit plants almost every day. But I have to admit, I haven't been as thorough in getting rid of them lately because I've noticed a lot more ladybugs around the plants, they love to feast on those aphids.
Just out of curiosity, have you noticed any ants around your cannabis plants? If you have, they might be farming the aphids and moving them onto your plants themselves.
Yeah, I know about the connection of ants and aphids.
I use greasy cloth around the trunk sometimes, so the ants can't climb up my fruit-trees.
On the balcony here, in the 3l pots, 2 stories up, there are no ants.
Ladybugs help. I hear good things about lacewings and their larvae, too.