Not only pruners, spades and fertilizer belong in a gardener's equipment. Pesticides are just as important. Do you have a bottle of neem oil (also known as neem oil) in your kit? No, then you should definitely get the liquid, because neem oil puts many pests to flight. Among other things, the stubborn powdery mildew.

Does neem oil have side effects
Neem oil is an extract obtained from the fruit of the neem tree. It is a natural product and is therefore completely harmless and environmentally friendly. Animals that feed on sprayed leaves are not endangered. Only plant pests do not tolerate the natural fungicide. In addition, neem oil even has an immune-enhancing effect and can therefore also be used as a preventive measure.
What you absolutely have to consider
- it is best to spray the affected plant with the neem oil solution in the morning hours
- repeat the application and be patient if the mildew takes a few days to disappear
- when spraying the plant, it should not rain, since precipitation will wash the solution from the leaves
- in strong sunlight, the leaves threaten to burn. Choose an overcast day for the application
Mixing tips
- to prepare the fungicide, mix 5 ml of neem oil with 1 ml of rimulgan and 1 liter of water
- the Rimulgan serves as an emulsifier
- fill the solution in a spray bottle and spray the powdery mildew with the mixture
- dose the neem oil sparingly
- In the trade you will find both ready-made neem oil fungicides and pure neem oil
- Neem oil only becomes liquid at room temperature. If necessary, you must first heat the bottle before the fungicide production. You can use your hands for this
- if the infestation is very severe, you can also apply the neem oil undiluted to the leaves
- Enrich your irrigation water with the neem oil mixture, prevent the development of mildew