Rose Midge
On Friday, August 23, 1996 I visited a rose nursery in Petaluma, Sonoma County, California that was heavily infested with the rose midge, Dasineura rhodophaga (Coquillett) [Diptera...
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GRASSHOPPERS AND RELATED INSECTS ON ROSES
GRASSHOPPERS AND RELATED INSECTS ON ROSES
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SCALE INSECTS
SCALE INSECTS ON ROSE PLANT
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ROSE ROSETTE
ROSE ROSETTE ON ROSE PLANT
CAUSAL ORGANISM:
This "disease" appears to be vectored by a blister mite but the causal agent has not been identified. Some plant pathologists think that it is a ...
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ROSE SPRING DWARF DISEASE
ROSE SPRING DWARF DISEASE
CAUSAL ORGANISM:
A virus is suspected in causing this disease.
SYMPTOMS:
Rose mosaic usually appears in spring as a distortion of growing tips or expanding leav...
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ROSE MOSAIC
ROSE MOSAIC ON ROSE PLANT
CAUSAL ORGANISM:
Prunus Necrotic Ringspot Virus: Mosaic is probably the most commonly found virus on roses but many other virus diseases also exist. While mosaic is
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BACTERIAL CROWN GALL
BACTERIAL CROWN GALL ON ROSE PLANT
CAUSAL ORGANISM:
Agrobacterium spp: This is really the only serious bacterial disease of Rose. The bacteria is found world wide wherever roses are grown a...
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