I grow my french and runner beans in deep beds into which I have dug in lots of homemade garden compost. But my compost heaps are probably full of slugs and their eggs, so it is no coincidence that these deep beds are also full of the pesky things (but not others into which no compost has been incorporated). The problem is: how can I get the beans started without them being eaten even before they surface? I do need to improve the soil and I make all ths fine compost for this purpose. Help!