rayp;956743 Wrote:
> Over the last 2 months I have noticed some significant holes in my 3
> year old plant. I fed it with liquid fertiliser for Azalea, Camellia and
> Rhododendron about 4 weeks ago to see if this would help. What could
> this be ? I don't think it's slugs or weevil because of the way the
> leaves look burnt.
> The plant is a half-shady spot next a fence so isn't exposed to the
> elements.
> Any ideas ? Pictures attached.
Leaves with crescent shaped holes are the handy work of the Cranberry
Rootworm, Rhadopterus picipes. It chews holes in the leaf, some of which
are crescent shaped. Cranberry Rootworm, Rhadopterus picipes, are shiny
and black with a greenish sheen, these beetles are about 3/16 inch long.
They feed at night and hide in litter or under containers during the
day. Beetles damage leaves by chewing oval-shaped holes. They are
usually associated with container nursery stock in areas with dense
shade. Remove ground litter and weeds from the area and reduce shade
where possible. Treat late in the day and repeat once or twice weekly.
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allen73
