>Evaporation depends on temperature. The weak colonies are cooler and evaporation is slower. >However, I am intentionally placing the Apiguard gel within the actual brood nest cluster, in which the temperature is relatively constant. Has anyone considered how this affects the pheromones in the colony? Does the Apiguard interfere with the pheromones? Do the bees start doing weird stuff, stuff that is different and may interfere with their survival? Also, how does ventilation affect all this? At what Apiguard concentration level will pheromones be interfered with? Or is this like frequencies, where Apiguard may be at one "frequency" and various Pheromones will be at other "frequencies"? Dave M. In a message dated 10/9/2009 7:45:04 P.M. Eastern Daylight Time, [log in to unmask] writes: >Evaporation depends on temperature. The weak colonies are cooler and evaporation is slower. Interesting point, Ari, but not sure that it applies in this case. I can understand that this would be the case in which thymol crystals were placed under the cover, where the temp varies greatly. However, I am intentionally placing the Apiguard gel within the actual broodnest cluster, in which the temperature is relatively constant. The second thing to consider, is the the gel is designed to be physically carried by the bees, along with the thymol-saturated shredded paper card, out of the hive. We find the aromatic shredded paper within a day or so scattered about. In the process, the bees ostensibly move the thymol, and its fumes, throughout the colony. A larger dose of gel in the center of the broodnest of a small colony might simply overwhelm the bees' ability to circulate the fumes, and result in excessive brood kill. I'm going to have to observe more closely to see if your suggestion is valid. Thanks, Randy Oliver *********************************************** The BEE-L mailing list is powered by L-Soft's renowned LISTSERV(R) list management software. For more information, go to: http://www.lsoft.com/LISTSERV-powered.html Access BEE-L directly at: http://community.lsoft.com/scripts/wa-LSOFTDONATIONS.exe?A0=BEE-L *********************************************** The BEE-L mailing list is powered by L-Soft's renowned LISTSERV(R) list management software. For more information, go to: http://www.lsoft.com/LISTSERV-powered.html Access BEE-L directly at: http://community.lsoft.com/scripts/wa-LSOFTDONATIONS.exe?A0=BEE-L