posted 10 years ago
Eh, bees need salt and minerals just like everyone else, in very very low amounts. I guess it couldn't hurt to have a salt source around, but I would find it otherwise unnecessary. Bees have Malpighain tubules that function to control water and salt balance. They are analogous to the glomerulus, mammalian kidney. So yes, they need salt to live, there is no debate about that. Bees that don't have access to a natural salt source can suffer, but rarely. Bees can taste the differences between fructose, glucose, sucrose, and many others, in addition to salts and equivalents to our perceptions of bitter and sour. What their threshold for perception of taste of salt is? It doesn't seem all to high, according to studies, not me. So to say bees have a "taste" for salt, may be a stretch. Maybe keeping a small amount near their water may help. But I personally wouldn't take the chance of poisoning them.