I have waited 7 years to see signs of fruit on my two pear trees, blossoms for the first time this year. Guess what? No bees, not a one.
Last year I had numerous bumble bees working what blossoms we had, dry hot spring, late frosts took them 'all' off. So no fruit last year, this year lots of blossoms, no bees, no fruit again.
I think last years drought did a number on the bumbles, plus the neonicitinoids are just going to finish them off.
I'll just have to use the gardeners mantra, "There is always next year". Bummer!