Viburnum Leaf Beetle
Pyrrhaltaviburni
Order
Family
Genus
Species
Regional
This bug has been reportedly found in the following regions:
Alfred, Maine
Roslindale, Massachusetts
Ridgewood, New Jersey
Keuka Park, New York
Rochester, New York
St John's, Newfoundland and Labrador
Macedonia, Ohio
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Gardener's Notes:
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c
coriaceous
ROSLINDALE, MA |
December 2014 |
Negative
A tremendous and growing problem for those trying to grow viburnums in northeastern N. America. It's an introduced pest here whose range is expanding.
Pruning out twigs bearing egg deposits in winter is the most effective single control measure you can take.
I'm also going to apply Tanglefoot to the bark near the base early next summer, as the larvae climb down before pupating in the soil.
Insecticidal soap sprayed directly on the larvae can also be effective. I'm not eager to try systemic insecticides.
Here's a link to a lot of good information about this destructive pest and its control: http://www.hort.cornell.edu/vlb/
Pruning out twigs bearing egg deposits in winter is the most effective single control measure you can take.
I'm also going to apply Tanglefoot to the bark near the base early next summer, as the larvae climb down before pupating in the soil.
Insecticidal soap sprayed directly on the larvae can also be effective. I'm not eager to try systemic insecticides.
Here's a link to a lot of good information about this destructive pest and its control: http://www.hort.cornell.edu/vlb/
t
tricialafleur
Macedonia, OH |
May 2012 |
Negative
This viburnum beetle and larvae have been decimating 2 of the 3 types of viburnum that I have planted in my yard for the past 3 years. The plants are about an acre apart from each other so that goes to show you how aggressive they are. I have somewhat controled them with a systemic insecticide applied very early in the spring. I hate using such poisons but it seems to be the only effective measure. Today, I noticed the same larvae eating my grape vine leaves. I obviously wont use a systemic on edibles! Please advise...
R
RosemaryK
Lexington, MA (Zone 6a) |
March 2012 |
Negative
A published list of viburnum species that are highly susceptible: V. dentatum, V. nudum, V. opulus, V. propinquum, V. rafinesquianum, V. trilobum according to Weston 2004, Cornell University. Without intervention, Dirr says the highly susceptible species are generally destroyed within two to three years of the infestation. Most species reportedly show more susceptibility to feeding damage when grown in the shade. Problem in upstate NY, and New England.