Thrip problem indoor

Any1 got a good efficient way to get rid of thrip’s. Some how i got them in my indoor garden, in my 4x4 tent. Not sure how they got there in first place, i do not believe they came with the ffof, thouggt only gnats and mites do. But i cannot seem to get rid of them, i tried capt jacks neem oil but they literally will walk right through it? Thought neem oil was the go to…really dont want to powder de all over my indoor plants but if i must? Please, help needed

What about captain jacks dead bug. Heard good things about that.

Unfortunately i do not have that. The neem oil is a capt jacks brand but maybe takes multiple doses.?