This rose disease is unsurprisingly known as "black spot". You'll know when it strikes because circular black spots with lacey edges appear on the plants' leaves, eventually causing them to turn yellow. The remedy: Remove and discard the infected foliage and any fallen leaves around the rose. Artificial sprays may be employed to prevent or treat this sort of rose disease.
2. Stunted or malformed young canes
This is commonly known as "powdery mildew", a fungal disease that covers leaves, stems and buds with a white powder, transferred on the wind. It causes the leaves to curl up and grow purple. The remedy: 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 autumn. However, it is hardy and is capable of surviving the winter, ready to attack new sprouts in the spring. The remedy: Carefully collect and discard leaves that are infected in autumn and consider spraying with a Benomyl or Funginex spray every 7-10 days, as this may help.
4. Malformed or stunted leaves and flowers
This disease is caused by spider mites, which are tiny yellow, red or green spiders found on the underside of leaves where they suck out the juices from the plant. The remedy: The application of Orthene or Isotox may help in treating this infestation.
5. Weak and mottled leaves with tiny white webs under them
Aphids cause this problem. They are small soft-bodied brown, green or red bugs. They often congregate under leaves and flower buds, where they suck out the plant juices from tender buds. The remedy: Malathion or diazinon spray may help roses to survive these insects.
6. Flowers that don't open or are deformed when they open.
"Thrips" could possibly be the reason behind this problem. They are slender, yellow-brown insects with fringed wings, that, like the other infestations mentioned, aim to suck out the juices from flower buds. The remedy: Remove and discard the infested flowers and consider an application or two, of Orthene or Malathion, which may help to combat this trouble.
Finally, remember that roses are hungry feeders that require a lot of fertilizer to become and remain the beautiful, healthy bushes you chose them for.
1. Malformed young canes or canes that are stunted
this is a fungal disease which is called powdery mildew. It covers stems bods and leaves with a white powder that spreads in the breeze. The leaves will turn purple and curl. To treat this, spray with Benomyl or Funginex.
2. Black spots on leaves
Aptly named, this disease is usually referred to as black spot. These spots are circular and have fringed edges causing the leaves to yellow. To treat this you want to remove infected leaves and pick up any that have fallen around the plant. You can also buy artificial sprays to treat and prevent black spot.
3. Stunted or malformed flowers and leaves
Malformed leaves and flowers can be caused by spider mites. These little tiny mites can be green red or yellow and usually hang around on the underside of the leaves where they have a good old time sucking the juices. You can try applying Isotox or Orthene to help treat these little pests.
4. Blistered leaves
If you notice the underside of your roses leaves are blistered you may have the disease known as rust. Blisters are an orange red color in turn black in the fall. This disease can live throughout the winter and in spring when new sprouts formidable attack them. To treat this get rid of any leaves that are infected both on the plants and on the ground. Spray Funginex or Benomyl every seven to 10 days for treatment.
5. Flowers which are malformed or do not open
this is another problem with roses that can be caused by bugs called Thrips. These are fain brownish yellow bugs that have fringed wings and damage your plant by sucking the juices from the flower buds. To get rid of them you'll have to cut off the infested flowers. Malathion and Orthene may also be used to treat this problem.
6. Leaves that are weak and mottled or show tiny white webs underneath
Here you may have a problem with aphids. These tiny blogs can be green and brown or red and often hang around in clusters under the leaves and flower buds where they suck juices. Try spraying with diazinon or malathion in on to get rid of them.
If your roses to not have any of these pests or diseases but are still unhealthy looking you might want to look at the way you are fertilizing them. Roses are very hungry and do require fertilization. Talk to your local gardening store to find out what's best for your area.
Both Christopher Byrnes & Lee Dobbins are contributors for EditorialToday. The above articles have been edited for relevancy and timeliness. All write-ups, reviews, tips and guides published by EditorialToday.com and its partners or affiliates are for informational purposes only. They should not be used for any legal or any other type of advice. We do not endorse any author, contributor, writer or article posted by our team.
Christopher Byrnes has sinced written about articles on various topics from Football, Affiliate Programs and Water Garden. Take your gardening to new heights with my FREE gardening report . Christopher Byrnes's top article generates over 14800 views. to your Favourites.
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