They tell you to carefully cut off all infected leaves of roses and bag as you go. There are sprays you find in garden center to spray all the leaf of flowers.
Here are 4 ways #1--Combine 1 tablespoon baking soda, 1 teaspoon oil and 1 teaspoon castile soap in 1 gallon of water. Spray the plants once a week to kill the mold and on new growth to prevent it from becoming infected.
#2--Dilute milk in a spray bottle using the ration of 1 part milk and 9 parts water. Spray the leaves and stems of your plants. Reapply the diluted milk weekly to help prevent re-growth. Avoid the temptation to use a stronger solution, as doing so may cause different forms of mold to form. #3--Infuse oil with garlic by adding a head of chopped garlic to equal parts oil and rubbing alcohol, enough to thoroughly cover the garlic. Let the garlic soak for a couple days then remove the garlic and soak it in 1 cup of water overnight. Remove and discard the garlic or puree it until it liquefies. Combine the infused oil, infused water and 1 tablespoon castile soap with 1 gallon of water. Spray the plants to kill the mold and spray new growth to protect it. Note that garlic also acts as an insecticide and will also eliminate both good and bad insects from the garden.
#4--Vinegar is highly acidic due to the acetic acid content, which makes it effective in killing mold. The downside is vinegar also acts as a natural herbicide and too high of a concentration can burn the plant’s leaves. Diluting the vinegar too much can also make it ineffective. Use 3 tablespoons of apple cider vinegar for 1 gallon of water and spray the plants weekly. Before spraying the mixture on large areas or covering entire plants, test a small area on the plant. If the vinegar is too concentrated, you will notice brown withered spots on the leaves you sprayed within a day.
About #4 I thought that an over acidic soil promoted fungus. How can spraying it on the leaves help? I will be putting down some lime to help with this. Last year we had more than the usual amount of rain and this contributed to the fungus. We usually get 45 inches of rain. How much rain do you get in your area? Thank you for you previous detailed answer.
Wet conditions promote Fungus-watering the plants from above not at ground level(lots of rain,sprinklers). Vinegar kills fungus but can also kill plants,sooo.....Do the baking soda one or the milk;don't use lime it is not good for soil kills all beneficial stuff soil needs- if you think you need to add something to soil use baking soda it's much gentler, just treat plants first before you do anything to soil. Make sure you remove infected plant parts and any infected leaves from the ground throw in trash do not compost or burn.; Everywhere had lots of rain & snow,now I live in AZ low desert, at one point Flagstaff)our mountains) had 40"s snow in 24hrs, we are out of a 10year drought!!! YEAH THX Mother Nature. You don't say where you are? I used to live midwest(Ohio,Ind. Kentucky area/Miami Valley) and work in the landscape/garden industry over 20yrs.;40-50"s rain yearly;heavy rains, lush land
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Call or visit your local nursery to get more information for your area and project
You can buy a spray from your garden centre that can help remove the fungus.
They tell you to carefully cut off all infected leaves of roses and bag as you go. There are sprays you find in garden center to spray all the leaf of flowers.
Here are 4 ways #1--Combine 1 tablespoon baking soda, 1 teaspoon oil and 1 teaspoon castile soap in 1 gallon of water. Spray the plants once a week to kill the mold and on new growth to prevent it from becoming infected.
#2--Dilute milk in a spray bottle using the ration of 1 part milk and 9 parts water. Spray the leaves and stems of your plants. Reapply the diluted milk weekly to help prevent re-growth. Avoid the temptation to use a stronger solution, as doing so may cause different forms of mold to form. #3--Infuse oil with garlic by adding a head of chopped garlic to equal parts oil and rubbing alcohol, enough to thoroughly cover the garlic. Let the garlic soak for a couple days then remove the garlic and soak it in 1 cup of water overnight. Remove and discard the garlic or puree it until it liquefies. Combine the infused oil, infused water and 1 tablespoon castile soap with 1 gallon of water. Spray the plants to kill the mold and spray new growth to protect it. Note that garlic also acts as an insecticide and will also eliminate both good and bad insects from the garden.
#4--Vinegar is highly acidic due to the acetic acid content, which makes it effective in killing mold. The downside is vinegar also acts as a natural herbicide and too high of a concentration can burn the plant’s leaves. Diluting the vinegar too much can also make it ineffective. Use 3 tablespoons of apple cider vinegar for 1 gallon of water and spray the plants weekly. Before spraying the mixture on large areas or covering entire plants, test a small area on the plant. If the vinegar is too concentrated, you will notice brown withered spots on the leaves you sprayed within a day.