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A slightly raised blistered on
upper leaf, later leaves
become twisted and
covered with a white
powder mass.
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Dormant pruning and
cleaning up old leaves,
sanitation is best
control.Spray Triforine or
Immunox, dust with
sulphur or spray with
baking soda and soap.
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Small black spots in
circular appearance on
leaves, later defoliation.
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Dormant pruning, removal
of attached leaves and
cleaning up old leaves, well
aerated site, do not
overhead water roses, In
winter us dormant
lime-sulphur spray, spray
with Neem oil, Daconil,
Immunox, Systemic sprays
during growing season.
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Young leaves, stems and
flowers may have purple to
red or brown irregular
spots, later lesions on
leaves become angular and
black with white powder on
underside of leaf.
|
|
Good ventilation, removal
of all dead leaves around
the bush and on the bush.
Use Daconil, Immunox,
and Systemic sprays during
growing season.
|
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|
Cut stems provide wound
sites for yellow, often have
red spots and later become
brown or black.
|
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Removal of dead canes,
make angular cuts, spray
with Immunox, Daconil,
Systemic sprays during
growing season.
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|
Occurs during cool and
moisture weather, appears
as orange to rust colored
spots on leaves, usually
close to the ground.
|
|
Removal of all leaves from
around the base of plants
and pruning out canes that
have infections, use same
spray program as black
spot.
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Overgrowths at the crown,
bud union or on the roots,
spongy feel,
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Remove the rose bush and
all the soil surrounding the
bush
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|
Leaves will appear to be
wavy and have yellow
lightening patterns, oak leaf
patterns or simply gold to
yellow veins.
|
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Remove the rose bush and
all the soil surrounding the
bush.
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