Black spot and other things wrong.

Good evening all ,its been a bad year for Black spot with the mild wet weather,these are not solutions only suggestions
1.BLACKSPOT
(Diplocarpon rosae)
Large black or dark purple spots on the surface of the leaves or stems are the main signs of black spot. As the problem gets worse the foliage gradually turns yellow and drops prematurely, weakening the plant

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CAUSES​

Rose black spot is specific to roses and all types are susceptible.The disease causes dark spots or irregular brown or black blotches on both leaf surfaces. Leaves then turn yellow and drop prematurely, resulting in weakened plants.The disease is worse in warm, wet weather.The black spot fungus produces spores which are released under wet conditions and usually spread by rain-splash.The disease can also be passed from plant to plant on hands, clothing or tools.Spores overwinter mostly on the shoots, but can survive on fallen leaves and within the soil.Recently, rose black spot has become more common in town and city gardens due to less sulphur dioxide within atmospheric pollution.

TREATMENT
CHEMICAL
Products containing the following chemical ingredients are all effective on rose black spot:
Penconazole
Bifenthrin
Myclobutanil - alternating any of these with the protectant Mancozeb to prevent the fungus developing resistance to
fungicides.
Organic
SULPHER
Usually sold as flowers of Sulpher or Yellow Sulpher and can be obtained as a spray
Bordeaux mixture
This was discovered in 1845, but not used as a fungicide until 1885 when it was found to control downy mildew
Burgundy mixture
Substantially the same as Bordeaux mixture, but the lime is replaced by washing soda. It can be used as a prevention against mildew on roses
ALTERNATIVE TREATMENTS
One organic treatment for black spot can be found right in your refrigerator. Mix ordinary fat-free milk with water in a 1:1 ratio and apply it using a spray bottle. Spray the solution directly onto the clean leaves of your roses. The milk-and-water solution coats the leaves and leads to the growth of an invisible--and harmless--fungus. That benign fungus will prevent the formation of damaging black spot fungus.

Please Always Wash and clean your Pruning ToolsFrom Rose to rose to prevent Transferring Disease

After having removed the diseased parts from your rose bushes it is necessary to apply a preventative formula to minimize further attack. Using fungicidal soap or sulphur several times over the course of summer is one solution (especially after rain as these products tend to wash off). There are a few home remedies that have met with some success and are worth trying, especially for those that really do prefer organic garden methods. One is a solution made with baking soda: dissolve 1 teaspoon baking soda in a quart of water, add a few drops of liquid soap to the mix to help it cling better to the foliage, spray infected plants thoroughly. Another unusual remedy for fighting fungal diseases is manure tea. This formulation fights blackspot, as well as mildew and rust, while providing foliar nuttrition. Place one gallon of well-composted manure in a 5-gallon bucket and fill with water. Stir the mixture well and let sit in a warm place for three days. Strain the mixture through a cheesecloth or mesh and use the resulting tea to spray disease affected plants (the solids left behind can be applied around the base of the plants as added fertilizer).

 

Hi Loli its nothing to do with luck its all down to your knowledge ,care and attention that you give your Roses my friend

Personally I haven't used anything as I try to grow my roses without spraying any chemicals on them

Its been one of the worst years for Black spot ever and many rose help lines have been inundated this year asking for advice on this disease,in fact the calls have risen by 75% accord to my friends in the Rose world

I have heard good reports on this
Multirose Concentrate 2 containing deltamethrin and tebuconazole.

 

Hi Jenny what age are they my friend perhaps they could do with pruning and a tidy up,the time for pruning a climber is after they have finished flowering

 

This is from the Barnesdale Gardening News letter(sent by email)

Rose Blackspot
This is a terrible disease that can vary year on year in its severity and because of all the dampness this year we are seeing quite a bit already. Being organic we generally rely mostly on hygiene to keep diseases at bay and roses are no different. We collect all the fallen leaves each autumn to prevent the blackspot spores from overwintering and being ready to re-infect the roses the following year. However, even doing this job each year does not guarantee that this disease will still not strike. If it does, then a good organic way of keeping it from spreading is to use skimmed milk! Dilute equal parts of the skimmed milk with water and spray it directly onto the leaves of the roses. The solution will coat the leaves and prevent the blackspot spores from attaching themselves to the leaves, therefore preventing further spread of the disease. The method will not cure the leaves of blackspot but it will halt its progress. It is important to use skimmed milk as the higher level of fat in other types of milk actually reduce the effectiveness of the spray. If it rains heavily then the solution will need to be reapplied, otherwise spray every 10-14 days


A YEAR IN THE LIFE OF BLACK SPOT DISEASE


Blackspot disease spent the winter mostly in infected leaves that fell to the ground. Spring warmth and rain awakened the fungus to shoot spores up into the rosebush and infect young, unfolding leaves. Moisture was needed to get those spores moving, and then the leaves had to stay moist for a few hours before infection could set in. Another, lesser source of infection is infected areas wintering on young canes.
Once spores get up into the bush in spring, infection can continue through the summer as spores hopscotch from leaf to leaf. As with the initial infection from fallen leaves, spores are released and get footholds only when moisture is present for enough time
IT IS IMPERATIVE TO PICK UP ANY FALLEN CONTAMINATED LEAVES AND DISPOSE OF THEM