As said, neem oil is an option to try. Additionally guy some live basil plants and put them in the pot. Basil is used as a natural deterrent against some sucking & biting insects. As well as ladybugs/ladybirds, deploying predator mites that will munch any mites that might be on the plant is another (semi-)natural method. At this point in flower, deploy ALL of them as you don't have much time to clear them before they must have been cleared for harvesting bug-free buds. As said, put it somewhere with a breeze as well as direct sunlight (bugs like still less-light conditions a lot). Good luck!