I use
Fritillaria imperialis as a capture plant in the spring. The Lily Beetle's love them so much that they will hardly touch my lilies at this time of the year, with the exception of my 'Lankon' lilies that also seems very attractive. It saves me a lot of time as I don't need to inspect my lilies as much at this busy time of the year. So on the one hand I'd highly recommend planting some to protect the foliage of your remaining lilies, but on the other hand I'd strongly advice not to plant them, if you want to avoid the beetle all together.
I have had little success in growing
Fritillaria meleagris in the past, so can't say how attractive these are to the lily beetles. I have however planted some this autumn and could perhaps report back later on, if I succeed with these (I suspect the bulbs were a bit too dry so may be another failure). The problem here is that even if they do emerge I have the
Fritillaria imperialis that probably will attract a majority of the beetles. Even if
Fritillaria meleagris manages to remain unharmed the result may not be representative. For what it's worth I've read reports about people having both terrible problems with beetles on
Fritillaria meleagris, while others have had less problems. My own assumption is that they probably will go for them at least if they have depleted other food sources
.
