Growing rosemary plants is common. Although it is easy to grow, but it does comes with some faults such as fungus.
If you are also struggling with this issue, then your plant is suffering from powdery mildew on rosemary. Continue reading the article to know what causes it, the symptoms and the effective remedies.
Many different closely related fungi cause the common plant ailment known as powdery mildew on rosemary. This ailment appears as a white, fungus-like powder.
Powdery mildew is basically the most common problems with all the indoor infected plants and rosemary is of no difference.
Rosemary powdery mildew, though won’t kill the plant but reduces the strength of it. The powder is the little spores and can spread to other plants, if severe. However, this the most easiest plant disease to diagnose.
The rosemary has rarely indoor issues. It survives the summers even without proper watering. However, as soon as you expose it to outdoor conditions or place it in a humid environment, the countdown begins. Let’s discuss the factors contributing to rosemary powdery mildew.
Powdery mildew spores are primarily spread through wind and water splashes. The spores germinate on the leaf surface and penetrate the plant tissue, leading to the characteristic white, powdery spots, when the environmental conditions are favourable.
The spores can be transferred from one plant to another through direct contact or via gardening tools that have not been properly sanitized.
Rosemary powdery mildew signs can be identified by various visual symptoms that includes white or grey powdery spots on leaves, stems, and on flowers. As the disease spreads, it leads to discoloration, turning the leaves yellow or brown. The new leaves grows twisted, proving that the plant’s growth is adversely affected.
However, the symptoms of rosemary powdery mildew goes beyond as it can affect the overall health of the plant. It hampers the plant’s ability to photosynthesize, reducing the growth. In addition, the plant’s ability to absorb nutrients may be compromised, making it more susceptible to other diseases.
There are several different species of fungi that causes powdery mildew. It is in best course to prevent it in first place and this could be the best remedies for rosemary powdery mildew.
The other ways of how to get rid of powdery mildew on rosemary is as follows:
In conclusion, powdery mildew on rosemary is a common issue that can weaken your plant but is treatable. Interestingly, strawberry powdery mildew is another similar problem. You can manage both by implementing preventive measures and using natural remedies like baking soda and neem oil.
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1.Peres, Natalia, et al. “Biopesticides and Alternative Disease and Pest Management Products: VPH ch. 19, CV295, rev. 5/2022.” EDIS (2022).
2.Mahapatra, Sunita, et al. “Antimicrobial agents for wheat disease management: mode of action and its application.” New Horizons in Wheat and Barley Research: Crop Protection and Resource Management (2022): 179-214.