Re: solid vs screen bottom
I have never experimented with screened bottom boards primarily because they aren't very forklift friendly but perhaps someone with some experience can answer a basic question I have about them. What keeps the mite that has fallen through one from simply crawling back into the hive through the entrance or even the screen? Anyone who has closely observed them is aware that they are quite athletic little critters and it's been proven that they can live for at least a day or so on their own without a host. Seems to me unless the hive is situated to make reentry quite difficult that there may be little gained.
"People will generally accept facts as truth only if the facts agree with what they already believe."- Andy Rooney