H Ludi Tyler wrote:
Apparently the breeding nest of carpenter ants needs moisture for the eggs, but they create satellite nests which do not require moisture. So to locate the queen may require finding where there is moisture or rotten wood.
More details: http://www.extension.umn.edu/distribution/housingandclothing/DK1015.html
Hire an anteater. They're sensational at what they do.
Lorinne Anderson wrote:Consider trying WD40. I get that this may not be environmentally friendly, but allowing destruction that could cause failure in a critical wooden support isn't an option.
Neither DE or Borax are harm free, in fact the first is quite dangerous if inhaled, and/or absorbed through the skin. The second is literally toxic if inhaled or ingested, for insects, mammals and humans alike and is generally what is found in most commercial baits (boric acid) combined with a liquid that is sweet - a perfect attractant to dogs etc...
Annie Collins wrote:
Borax and boric acid are not the same compounds. The formula for boric acid is H3BO3, and the formula for Borax is B4Na2O7. Borax is a salt of boric acid. They have different effects.