Ross - You only match those in the Marin data group with 15 years experience TF using the same breed of bees and who raise the same bloodline(s), except that you're in Texas, they are in Kaliphornya. Maybe there's a difference?
Some TF beeks also tell me they DO NOT FEED bees (), and I wonder if they have higher or lower survival rates...also against those who feed cane sugar + Mega-Bee or Ultra-Bee vs. beet sugar vs. HFCS?
I would have to enlist as at least 2 people - half Treatment-Free but artificially fed, half IPM managed, with multiple bloodlines, 6 years experience but with close mentors of 41 years, 32 years, 30 years, 18 years, and 12 years, plus 2 local clubs, and a great uncle who did it for a long time. Not your average newbie (wearing out my second bee jacket), but not a seasoned veteran. I'd skew the curve for the inexperienced guys.
JWC - I really appreciate the post. Good to see what an active club can do. I just met the first commercial beek to come to our local club, now in it's 3rd year. San Diego also has a great club. Your conclusions aren't too far off the data. Thank you.
Bison - Thank you for chiming in. I'll PM you for the rest of the data. Great post!
Shinbone - maybe we need to say Tbeek7/25 for a 7-year Treatment beekeeper with 25 hives, or IPMbeek10/450 for an IPM 10-year beekeeper with 450 hives, or TF beek1/2 for a Treatment-Free beekeeper with a year under his belt and 2 hives? Or perhaps (average # of hives) x years? Variable definitions of imprecise words like "beekeeper" is like trying to hit a good knuckleball.