I've had a problem for a few years were Cyclamen start into growth and then slowly the top growth goes - when I have a look there are no roots. Also light patches on the underside of the corms. I first thought "vine weevil" but no sign of any grubs. Also as far as I am aware I've not had any vine weevil in the greenhouse even though I have a fair few Primula allionii (though the rest are all bulbs).
So I concluded I am messing the watering, maybe too dry then too wet, or too dry..or too wet..or fungus.
However, the other day I found a vine weevil in the pot of a C.rohlfsianumum and then found a corpse of another one. Now I'm wondering if it was vine weevil all along it's just they have long gone before the plant shows signs.
Anyone had anything similar? (Hoping the adult hadn't come from the very large C.rohlsianum tuber)
