Pollination Pets for the Garden. The UK bee population has almost halved in the last 10 years due mainly to the spread of a mite called Varroa from Asia. The loss of such a large proportion of the bee population has implications for agriculture, horticulture and nature, bees pollinate the majority of plants with no intervention from man, there isn't a more reliable fertilisation method. However an Oxford company has come up with a simple kit to attract Mason bees to nest in your garden requiring no effort and no protective clothing, they're pretty docile too, so it's unlikely you'll get stung. BTW, the US is affected too.