Skilfully Using Oleander to Cure Black Spot Disease in Roses
The editor introduces topics related to the Oleander flower clinic, discussing how to skillfully use Oleander to cure black spot disease in roses. Let's continue with the introduction.
In the rainy season, roses often suffer from black spot disease, with black or dark brown spots appearing on the leaves and peduncles, surrounded by a yellow halo. Sometimes, several spots merge together, causing large areas of the leaves to turn yellow and fall off, not only affecting their appearance but also endangering their survival. To eliminate the disease, I tried many methods such as washing the leaves and spraying pesticides, but the results were not ideal.
One time, I noticed that several pots of roses near the Oleander in the courtyard were blooming beautifully and vividly. The leaves were also shiny and clean. Could it be related to the Oleander? With a mindset of trying it out, I immediately moved the roses with black spot disease next to the Oleander. After more than a month, the black spot disease had decreased significantly. Later, I cut some Oleander leaves, soaked them in water for 24 hours, then mashed and filtered them, and sprayed the juice on the affected rose leaves once every two days. After a month, the black spots gradually disappeared.
This shows that Oleander leaf juice is effective in treating black spot disease. In the summer and autumn seasons, I cut the flowers of the Oleander and used the same method to extract the flower juice for testing as a preventive treatment for rose black spot disease, and it had the same effect as the leaf juice.
Whether this method is effective for black spot disease in other flowers is yet to be further explored. It is also important to note that the branches, leaves, and flowers of the Oleander are somewhat toxic. Ingesting them can cause nausea, vomiting, and diarrhea, and can be fatal. Therefore, extra care must be taken when making the juice, and children should be kept away from it.
The above experience of skillfully using Oleander to cure black spot disease in roses is brought to you and is hoped to be helpful in your life!