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Leafcutter
Bee
Leafcutter
Bee - Causes characteristic patterns
on many types of deciduous tree and shrub leaves.
Leafcutter bee damage on leaves
Leafcutter bee feeding and gathering pollen
Photos: Colorado
State University Extension
The semicircular
sections cut out of leaves are used by the native bees to form
nesting cells in decayed wood or hollow pith of some plants. The
damage usually does not harm the plant, unless it is extensive.
The bees are important pollinators and should not
be controlled, if possible.
Links:
Colorado
State University Cooperative Extension
University
of Wyoming - Cooperative Extension Service,
publication B-1035 is particularly helpful for tree care.
This online publication contains information on: Aphids, Borers,
Cottonwood blotch leaf miners, Cytospora canker, Fireblight, Gall
makers, Aspen leaf spots, Oystershell scale, Pear slugs, Powdery
mildew, and Spider mites.
Questions?
E-Mail
Forestry Division
If
possible, take a couple of digital photos of your tree or shrub
and include them with your questions. One photo should be a close
up of the problem area. The second photo should be of the entire
tree if possible.
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