The 'shite powder' (I love when typos make new words that make sense in context!!!) is Diatomaceous Earth, I'm just going to call it D.E. for shortness.

It keeps my thrip problem in check. It gets out of hand fast when I stop powdering and neeming.

Mostly I just use DE on the soil surface and neem on the leaves, but the DE gets EVERYWHERE, and I use it on the leaves in late flower too when neem is out of the question.

Sometimes it gets on the lower buds but I don't care because whatever, those are the ones I pollinate and after taking seeds out they just get binned with the hash stash.