Originally Posted by MikeCT

"Boomer" asked:

Hi All….Could anyone tell me how I get rid of the little black lava that
are swimming in the water butts which then seem to turn into some sort
of native mosquito without contaminating the water I use for the plants
?
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Yes, a teaspoon full of vegetable oil or paraffin in each but should do the
trick. The surface film of either will clog the mosquito or gnats breathing
tubes, killing them.

MikeCT