I've never heard of that about horses and bees. Just checked, it is certainly part of the lore about keeping bees, that they don't like horses, and will attack them, and even kill them. Recently, there has been strange bee behaviour because they became short of drinking water, and visited strange ponds and so on, so bee-keepers are advised to provide plenty of water for them, e.g. a small pond.
Yes, good news about the pesticides.
They seem to have quite small nests, up to 50 bees in it.
In other news, not many wasps around at the moment, apparently they were decimated by bad winters and summers. Bad news for gardeners, actually.
In other news, more eagles seen in Norfolk, Gordon Bennett.