Anyone know where to order them or buy them (or a similar Thai product) in Bangkok?  I ordered from Shoppee and the seller never shipped them.  I have lots of potted plants on my balcony and I think the little <deleted> are laying eggs in the drip pans.   This would work.

 

Not cheap but might help 

 

฿743.00 -17% | Fei Biao insecticide granules to kill toilet aquatic plants  manure tanks  mosquitoes  flies  larvae  eggs  maggots  and larvae  sustained release agent | https://s.lazada.co.th/s.2rWij

A little vegetable oil or vinegar should take care of them and don't believe it would hurt the plants.