I don't advocate using oils and pledge to keep the bees in. SOmething tells me it will effect the bees pheremonal balances in the future. I do use lemon grass, however I I smash the live grass in my hands and drop it in the hive, I don't smear it around for the oils to get into the wood.
However again, I don't use the lemongrass anymore either, since it doesn't grow here in Iowa.
Scot Mc Pherson<br />McPherson Family Honey Farms<br />Davenport, IA<br />BeeWiki: <a href=\"http://beewiki.linuxfromscratch.org\" target=\"_blank\">http://beewiki.linuxfromscratch.org</a> <br /><br />Pics:<br /> <a href=\"http://linuxfromscratch.org/~scot/pics/bees/\" target=\"_blank\">http://linuxfromscratch.org/~scot/pics/bees/</a>