ElPolloDiablo said:
Bleach has no staying power. It's completely gone in less than 12 hours.
I have been using BTI-based Mosquito Bits in everything I have water that cannot be drained last year. I haven't seen a mosquito larva since. Unfortunately there's an abandoned house down the road that has become tiger mosquito central and our county government is too busy playing real estate speculator to care about it.
SoCalGardenNut said:
He turned the fountain on, so it's not standing water. I'll probably ask him to drain the water today.
ElPolloDiablo said:
There's a BTI-based product called Mosquito Dunks which you can just leave floating on the surface of the water. It lasts about a month. Tiger mosquitoes will lay their eggs everywhere there's water, standing or not: I have seen larvae in as little as half a cup of water and most conventional pesticides won't kill them. No small wonder they are so difficult to get rid of.