Hi Fingle, We had a bumblebee nest in our compost last year. We didn't get rid of it, just tried to work with them. My husband pushed a piece of plastic drainpipe down into our compost for the bees to get in and out and we just continued to put stuff on top. This worked very well, as we saw the bees just come and go quite safely with no harm to either of us. In the spring the bees were well gone and we removed the drainpipe and just dug our lovely well rotted compost out as usual. :D busy_lizzie