We really believe in ventilation. I think it helps with the mites and moisture too. Just did 24 hour drop tests and had counts of 0-6 mites per hive in 12 colonies. Most are double queened. Haven't had to treat for varroa or tracheal this year.
Since we use piles of supers between triangle escapes with a little of Jim's Bee Quick to clear bees, we don't need the small escape holes in the inner covers. We have cut large rectangles in all of our inner covers and screened them (also very convenient for quick checks under the top). We also dado a small upper entrance on the inner cover. Only 1 hive has been bearding in all of this 90 degree+ weather, but it has 2 deeps and 6 full supers on. Also use sbbs. and 3/4 inch holes in deeps year round in Wisconsin.
Oh, and when it got hot we added large jars of water to boardman feeders outside of hives. The bees empty these sometimes daily even though they normall use the farm pond.
Hope this is helpful,
Last edited by Mabe; 07-31-2007 at 07:27 AM.
Reason: forgot something
Buy locally, buy only humanely raised animals, eat in season, keep bees!