Re: questions about swarms and swarm traps.......
At least one study I have read concluded that 40 liters was an optimum size for a swarm trap. That is approximately a 10 frame deep.
I have some TBH swarm traps. Last year I placed 5 around the property and caught 1 swarm. They didn't seem to have any problem with my bars and have turned into a fine hive.
I have all my traps out now. Here, dandelions, henbit and deadnettle are currently blooming, although its still somewhat cold.
Last year 4 of my traps were on legs, about 30" off the ground. None of those caught anything. The successful trap was sitting on a pair of homemade L-brackets ratchet strapped to a tree, about 7 ft off the ground. This year I now have 7 traps mounted to tree trunks, and 2 still on legs.
The newer traps are Lang medium bodies with a temporary 3" extension screwed on to make the trap about 40 liters. My Lang equipment is all mediums.
Here is some bedtime reading for you:
Last edited by Rader Sidetrack; 03-14-2013 at 08:11 PM.
Reason: add link to Seeley bait hive paper
USDA Zone 7A Elevation 1400 ft