I have the rose disease 'black spot' on my rose bushes. Can anyone tell me any home remidies to get rid of it?

Question

I would prefer non-chemical solutions if possible. I have heard bi-carbonate soda can be used. Does anyone know how to do this?

Answer 1

Remove infected leaves, plants and use a preventive fungicide program. A fungicide such as chlorothalonil or Captan should be applied, although the new Bayer Advanced Disease Control products seem to work well.
Black spot will never leave, as soon as the weather conditions change it will germinate.
oh and never spray water late in the day or evening as this will sit on the leaves all night before the sun can dry it off and black spot germinate. Water applied on the leaves in the morning will dry in the early day sun.

Answer 2

Baking soda,Mix 2 teaspoons baking soda and a few drops of liquid soapwith i gallon of water.Spray the whole bush with the mixture.Reapply the mixture every 4 to 5 days untill the spots disappear and the weather becomes drier. ( When water roses normaly water the area around the bush ,Don't water the foilage,damp leaves invite fungus diseases.) When pruning leaves dont leave on ground around plant,they harbor disease spores,or insect eggs and larvae.Hope this helps.

Answer 3

you're gonna love this one, but it comes from a foremost garden guy, jerry baker: 15 tomato leaves, 2 small onions, 1/4 cup rubbing alcohol; chop the leaves and onions into very fine pieces; steep in alcohol over night. apply to your rose bushes with a small, sponge-type paintbrush, making sure you get the top and the bottoms of all the leaves. i always spray around my plants and remove the affected leaves first and discard them away from my roses. black spot can come from the soil, too, besides the air. damp leaves are growing mediums for blackspot, so lay a soaker hose along the bed/roots so the leaves don't get wet when you water. about 5 years ago i had blackspot so bad that i just dug up all my roses saying ta hell with it! but i love 'em and now i have beautiful ones. good luck and the above does work!

Answer 4

My grandmother uses the dishwashing liquid spray that others have said work but you also have to remove the leaves with the black spots and be sure to throw them away. It's tedious. I won't do regular roses anymore. I plant knock-out roses that are disease resisant and have a prettier show, no bare legs. They are also coming out with new colors all the time.

Answer 5

Dee Dee is right, however as you remove the leaves, make sure that you do not touch uninfected leaves. I would use a pair of tweezers and keep them in a small glass of alcohol. Put the removed leaves into a plastic bag like you get at walmart.

It is really hard to get rid of since others in the neighborhood have to do the same thing.

Answer 6

I have tried all the non-chemical and none of them work,not even the bi-carb,There is a organic solution that you can buy at the garden center that is very good,Sorry cant remember the name Just ask at the garden centre.

Answer 7

I have not found an "organic" treatment that works very well, but one treatment that's chemically based that is sort of minimalist is the use of a systemic fungicide. The plant takes up the fungicide as it takes up water and nutrients, and the black-spot fungus in turn ingests it and dies.

Answer 8

Mix dish washing detergent with water in a spray bottle and spray them at least once a day.
This was a trick my Dad learned somewhere and since he was the real gardener in my family, I paid attention to what he said.
This is what I do, it is environmentally friendly and it works!
Hope this helps.

Answer 9

Mix 2 tablespoons of dishwashing liquid in warm water.Spray the bushes daily.

Answer 10

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