Roses::Care Of
Roses
Care Of
Roses
Care of
roses will require you to understand rose diseases.
Black spot, ash leaf rust and powdery mildew are some of the
rose diseases to be aware of when you have roses in your
garden.
Roses are subject to several diseases
such as black spot, ash leaf rust and powdery mildew. The most
serious is rose rust, a species of rust fungus, which can
defoliate the plant. More common, though less debilitating, are
the rose black spot caused by the fungus Diplococarpon rosae,
which makes black spots on the leaves in summer, and powdery
mildew. Fungal diseases are best solved by a preventative
fungicidal spray program rather than by trying to cure an
infection after it is visible. After the
disease is visible, its spread can be minimized through pruning
and use of fungicides although actual infection cannot be
reversed. Some rose varieties are considerably less susceptible
than others to fungal disease.
To make sure that
your prized roses remain in the best of health, simply follow
these tips for care of roses.
1. Black Spots on
Leaves
This disease is
commonly known as black spot. Black spots appear as circular
with fringed edges on leaves. They cause the leaves to yellow.
Remove the infected foliage and pick up any fallen leaves
around the rose. Artificial sprays may be used to prevent or
treat this kind of rose disease.
2. Stunted or
malformed young canes
Known as powdery
mildew, this is a fungal disease that covers leaves, stems and
buds with wind spread white powder. It makes the leaves curl
and turn purple. Spray with Funginex or Benomyl to treat this
fungal disease.
3. Blistered
underside of leaves
Known as rust,
this disease is characterized by orange-red blisters that turn
black in fall. It can survive the winter and will then attack
new sprouts in the spring. Collect and discard leaves that are
infected in fall. a Benomyl or Funginex spray every 7-10 days
may help.
4. Malformed or
stunted leaves and flowers
This is caused by spider mites. They
are tiny yellow, red or green spiders found on the underside of
leaves where they suck juices. The application of Orthene or
Isotox may help in treating this infestation.
5. Weak and
mottled leaves with tiny white webs under them
This is caused by
aphids. They are small soft-bodied insects that usually brown,
green or red. Often clustered under leaves and flower buds,
they suck plant juices from tender buds. Malathion or diazinon
spray may help roses to survive these bugs.
6. Flowers that
don't open or are deformed when they open.
Thrips could be
the reason behind this problem. They are slender, brown-yellow
bugs with fringed wings that also suck juices from flower buds.
Cut and discard the infested flowers. Orthene and Malathion may
also treat this problem.
Care of
roses is to remember roses are hungry feeders that
require much fertilizer to become healthy bushes.
The main insect pest affecting roses
is the aphid (greenfly), which sucks the sap and weakens
the plant. LadyBugs are a predator of aphids and should be
encouraged in the rose garden. Spraying with insecticide
is often recommended but should be done with care to
minimize loss of beneficial insects. Roses are also used
as food plants by the larvae of some Lepidopters species.
A totally safe and natural product
can be used to solve insect problems. This will control a
variety of insects including aphids, mealy bugs, spider
mites, soft brown scale, psyllids, rore slugs and earwigs.
One type is Safer’s Insecticidal Soap Spray. This product
can be used on roses, flowers, vegtables, fruits, shrubs,
trees, houseplants and greenhouse plantings. When sprayed on
insects, the insecticidal soap breaks down the insect’s
protective coating and causes it to dehydrate and die. Spray
the soap directly on the insects when they are first
sighted. Apply weekly for 2 to 3 weeks.
Care of roses
is best looked after before diseases
start rather than after.
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