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Aphids - small green or black,
may have wings, about 1/8"
long, usually in the spring and
fall.
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Sticky honeydew, will make
foliage unsightly, and the mass
of aphids is unsightly. Usually
on the new growth.
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Wash the plant to knock off
the insect, most insecticides
will work, or lady bugs,
lacewing larvae and parasitic
aphid wasps.
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Leaf Cutting Bees - about the
size of a honey bee.
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Rarely seen, but they cut
sections (circular in shape) out
of the rose foliage.
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Unable to control this pest.
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Grasshoppers - Longhorned or
katydids, green color.
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Large irregular sections of leaf
edges removed.
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Hand picking, birds, and
animals rather than spraying.
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Leafhoppers - tiny hopping,
1/4" long
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Small white or brown stippled
areas show on top of leaf,
from sucking on the
underneath side of leaf.
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Systemic insecticide, spray
under leaves.
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Cane Borers - small wasps
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A hole in the center of a cut
cane. May be a few inches
deep or down to the base of
cane.
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Spay insecticides for aphids
(source of food) and after
cutting a cane cover the cut
with elmer's glue or shellac.
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Flower Thrips - tiny, slender
brownish yellow winged
insects, hide inside the buds of
roses
|
|
Damage to the petals, caused
by the thrips as they suck sap
from the petals.
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|
Diazinon, Orthene sprayed
directly on the blooms. The
buds and top foliage should be
sprayed.
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Spider Mites - two spotted
spider, prefer dry hot weather.
Shake leaf over white paper to
find.
|
|
Suck sap from the leaves,
completely defoliate the rose.
Webbing and eggs will be seen
on the underside of leaves.
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Japanese Beetles - medium
sized beautiful insect, usually
seen in clusters all over the
rose.
|
|
Dead spots in the lawn is the
beetle grubs and found during
day on flowers and leaves
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|
Diazinon, Doom, Sevin
insecticides used to spray the
soil and complete coverage of
plant.
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Rose Slugs - larvae of
sawflies. Look like caterpillars
about 1/2" long usually seen in
the spring.
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Leaves look see through due to
stripping of the green tissue.
|
|
Contact insecticides sprayed
heavily on foliage, top and
underside.
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|
Rose Chafer's - brownish gray
winged beetle, 1'2" long.
|
|
Suck on flowers, especially the
lighter colored roses.
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Malathion, Sevin, Avid,
sprayed every 2 days.
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Scale - round, hard dirty
white, gray or brown
shell-covered insects.
|
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Suck on stems and foliage
causing discoloration, wilting
of foliage, and weakening of
the rose bush.
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Prune out and destroy all
infested stems and leaves.
Apply Malathion, Sevin or
Orthene.
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