Maybe I am jumping the gun. We've had several lovely sunny days, weeds, early flowers and my plum trees are blooming and I have seen NO honeybees. In five minutes observation of one semi dwarf plum today, I saw one wasp, one carpenter bee, three at most of those little bitty waspish things and a fly. This tree is covered in fully open plum blossoms. Am I panicking too soon? Did the hives up the road all die or something? But ... I usually see some insects on the blooming weeds. I only used one round of organic horticultural oil four weeks ago. Still wouldn't explain no bees in other parts of the garden.