The original poster requested organic methods of ant control. Not only is it not organic in any way, kerosene is highly flammable; I hope your house is safe after your application of 10 gallons
of kerosene to the wood.
If anyone has ant woes, we've had two extended threads here at The Helpful Gardener on regular ants and fire ants:
(regular ants) https://www.helpfulgardener.com/forum/viewtopic.php?t=9095
(fire ants and regular ants) https://www.helpfulgardener.com/forum/viewtopic.php?t=12001
Sunset Zone 17, USDA Zone 9
(I see the webmaster and I posted approx. the same time)