BUZZ!!! Thrips have a soil stage in their life cycle.
=>Then I recalled the wise words of Michael Chamberland, and tried submerging
=>a few pots of infested plants. About 4 days underwater, then I brought the
=>plants back into the air.
The thrips emerging from the soil (or eggs) drown. I'd be afraid that
the plant might be affected as well, from lack of oxygen. They aren't
able to exchange oxygen and carbon dioxide to and from water all that
well.
Malathion works good too. Make sure to get the soil wet with it as
well.
TTYL,
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Patrick (o o)
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In order for something to become clean, something else must become dirty ...
... but you can get everything dirty without getting anything clean.