Help please, I manage half a dozen colonies for honey' and fun, and some friends called who are moving into a house which has an active honey bee colony in the space between the roof and plasterboard making up the raised (cathedral) ceiling. Its a small, four room house and the bees are using both gable end louvered vents for entrance, although they favor one. This colony has been entrenched for at least three years and many bees are clustering on the louvers. The brood nest is approximately 10-15 feet from the end of the house in a space hardly larger than the 2x6 inch studding. My friends need to remove or eradicate it. As there is no access except through the ceiling (the comb is approximately midway between the roofline and gutters) they feel they will spray the clustering bees on the louvered vents on several occasions with soapy water. When those bees are sufficiently reduced they intend to close one vent and severely restrict the other. They hope to find some kind of pesticide dust to place strategically so the bees may track it into their nest as they pass through the entrance. They are still pondering whether to just allow the wax moths to clean up. Can anyone advise me of a pesticide dust effective in this situation? *Instead,* maybe someone could advise me of a beekeeper near Wilmington, Delaware who would be willing to take on this task ? Any thoughts would be appreciated. Dave Johnson [log in to unmask]