I finally gave in and bought a tube trap this year after losing all my peaches and 50% of my tomatoes. Figured its either I start reducing the squirrel population or I stop gardening.
Really wish I did this earlier because Iāve been catching them just as fast as I can reset the trap - already thinking about getting another trap next year. Im not the biggest fan of killing anything so its a great relief that almost all the squirrels caught (>15) appear to be killed instantly with minimal suffering.
If anyone goes this route I would recommend the following upgrades: adding some brightly colored vinyl tape to the trapping bar so you can see when the trap has sprung from a distance, using a small file to fine tune the spot where the release lever contacts the trigger pad. I also found that using peanut butter as bait and adding it to the ceiling of the trap works much better than applying it on the actual trigger pad.