First post, definitely a lurker - I have only been keeping bees for three years now. Mostly in it for the honey and the fermentables for mead and beer. And to save the planet.
This spring, two of my three hives were fine, but in the third hive the bees were. just. GONE. This is probably a common newbee question and common occurrence these days. There was a dedicated cadre of a couple dozen bees for awhile, but they soon succumbed to their short life span. Some bees died deep in cells as if they were dying for food when beautiful capped honey was available - so bizarre.
My first thought was CCD - but I noticed some of the frames looked "funny". There was a shotgun pattern of white cells (attached). I have heard of "chalkbrood", but I don't know what it looks like exactly, and I do know that chalkbrood is not typically enough of a pest to eliminate a hive.
So what do you think? Is this chalkbrood? Did it kill my hive? Was it CCD/Neonicotinoid/Bigfoot?