I've been planting up a patch of baileyii at the allotment over the past month or so, some from pots grown last year (& to varying degrees pot-bound), some of which haven't established well (in the dry weather) so I've replaced some from good plants grown this year. Today two of the newbies had collapsed, roots eaten up to the soil level. Digging them out, both had fat leatherjackets in the rootball, the obvious culprits.