Wow Tyro,
That is a great haul that is a very productive tree...a few questions..
First what tree do you use as a "Trap", do you spray it to finnish off the beetles?
Second, when picking berries as a kid in NC, we used the water technique as well, floaters meant airspace, and likely a bug in the berry...I noticed some of the floaters looked like they may have been attacked by bugs, do the beatles stay in the floaters?
Figgy sid...thank you the tip on shade cloth and nodes, this whole thread contains some good info.