To ensure that your precious roses follow to remain in good health, just these tips.
1. Black spots on leaves
This disease is commonly known as black spot. Black spots appear as circular with fringed edges on the leaves. They cause the leaves yellow. Remove the infected foliage and pick up any fallen leaves around the rose. Artificial sprays are used to prevent, or treat, got this kind of disease.
2. Stunted or defective young canes
Known like mildew, which is a fungal disease that covers leaves, stems and buds spreads with the wind, a white powder. It makes the leaves turn red and purple. Funginex or spray with Benomyl to treat this fungal disease.
3. Blisters on the underside of the leaves
Known as rust, this disease is characterized by orange-red blisters that turn black in fall. It can survive the winter and then attack new sprouts in the spring. Collect and dispose of leaves that are infected in the autumn. Help benomyl or spray every 7-10 days may Funginex.
4. Malformed or stunted leaves and flowers
This is caused by spider mites. They are tiny yellow, red or green spiders on the underside of the 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-skinned insects, which are usually brown, green or red. Often clustered under leaves and buds, they suck plant juices from tender buds. Malathion or diazinon spray may help roses to survive these bugs.
6. Flowers that do not open or are deformed when to open them.
Thrips could be the reason for 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.
Note that Rosen hungry that investors need much fertilizer to be healthy bushes.
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