"David J Bockman" wrote in message
...
Check the undersides of the leaves for evidence of Lacebug poop... will
look
like black pepper.

I agree with David that what you describe sounds like the results of a
lacebug infestation, but winter is an unusual time of year for this to show
itself. Lacebugs are typically present during the growing season, but winter
stress from excessive cold (like you experienced several weeks ago) may have
amplified what was overlooked earlier in the season. Eggs overwinter on the
underside of the leaf close to the midribs. Hosing off or applying an
insectidicidal soap is your best control method. Will need to repply when
they hatch in May and again in late June or early July. Rhododendrons grown
in much sun seem to be more prone to damage from lacebugs than those grown
in a cooler, shadier position.

pam - gardengal



"Anonny Moose" wrote in message
...
A few of my rhododendrons' leaves are showing a loss of color this
winter.
They look almost white with green speckling. Anyone know what this is
and
what I can do for it?

Thanks.

Karen
portland, or