Re: Hive Hemorrhaging Bees
If the bees had been robbed, there would be no brood, larva or eggs left, & the queen would be gone.
Last year I had one hive over run with varroah . I did not diagnose it, the bees were just anemic, almost would not fly at all ( I was bottle feeding them in the hive while scratching my head & looking dumb. I finally sent a sample to the bee lab in maryland )
This hive did not appear to effect my other hives.
"(Farmers spraying constantly )" -- This would be your cue to move the bees.
Good luck. CE
Started summer of 2013, just another new guy, tinkering with bees.