Violet Pests

paulamayMay 6, 2006

I have read a list of the most usual violet pests, but none of the descriptions seem to fit. Each year, my violets come into full bloom in May and continue to leaf out throughout the summer. By July, however, they begin to be eaten by something. Ragged round holes the size of a pencil eraser appear on virtually every leaf. Does anyone know what is happening and how I can make it stop?

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gerdk(7 Europe)

What's about slugs?
If not, vine weevils (Otiorhynchus sulcatus) maybe the pest.
Control is possible with Methiocarb or Metaldehyde pellets (slugs) and Imidacloprid or nematodes (vine weevils).
Gerd Knoche. Germany

    Bookmark   May 10, 2006 at 1:46PM
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Mike Hardman(Cyprus, 100m altitude)

Paula,

No disrespect to my learned friend Gerd, but if it was vine weevil, I'd expect you to comment on the *edges* of the leaves being nibbled, but you don't...

ragged holes...
...hmmm...
if they were less ragged, I'd suggest leaf-cutter bees.
But I've never seen or heard of them going for violets (they go for maples in my garden).

The other holes that come to mind, re Viola, are those associated with shot-hole disease, a fungal problem where each spot starts, spreads, then the dead centre drops out. Those holes are more ragged, but not usually as large as you describe, in my experience.

If you can post a photo, that might help....

    Bookmark   May 14, 2006 at 7:53PM
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paulamay

Thank you so much! I will try all the options. I have never seen slugs in my garden, but there is always the possibility that I haven't slipped on them yet.

I will take pictures when and if they appear, but I hope they don't!

    Bookmark   May 15, 2006 at 10:50AM
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