If you want to enjoy beautiful roses without using any chemicals to maintain them, you can! Roses are among the most beautiful shrubs in our landscape and can require a great degree of care. Here's a quick guide for caring for your rose bushes without any chemicals.
There are a couple ways to suppress diseases on roses without using any traditional chemicals. Organic Neem Oil work great on Roses and both help to form a protecting barrier that keeps disease from decimating roses. If you just soak compost in water, it will not have the disease suppressing effect of the Actively Aerated Compost Tea. This is because when you actively brew tea you are applying living organisms to the leaf surfaces. Those organisms attach themselves to the leaves and make it difficult for the bad guys to attack. Compost Tea can be a bit tricky to make, but it is worth the effort.
If you're looking for a simpler but very effective way to suppress black spot and other diseases on your roses, consider an organic neem oil treatment. dầu neem Oil works great to suppress powdery thrips, red spider, mildew, black spot, and other rose diseases. As an added benefit, it also repels Japanese Beetles and keeps them from decimating your roses.