Content
- Rosemary susceptible to fungal diseases
- Garden hygiene is important
- Mildew often occurs in rosemary
- Gray horse on rosemary
- Rust fungi promote needle shedding
- Wilt and rot in rosemary
- Tips & Tricks
Rosemary susceptible to fungal diseases
The popular rosemary herb is unfortunately very susceptible to various diseases caused by fungi. These are usually favored by too much moisture.
Garden hygiene is important
Diseases are kept in check by both humans and animals as well as in the garden by a good hygiene as well as a care adapted to the plants. Remove potential sources of infection by thoroughly disinfecting pots, plant stalks and other garden tools at the end of each garden year. Carefully remove rotting, diseased or dead parts of the plant and never dispose of them over the compost. These leaves and branches may have fungal spores that would re-infect the plants the following spring.
Mildew often occurs in rosemary
Rosemary is often attacked mainly by powdery mildew. This plant disease attacks stressed plants, especially those that are too narrow and whose roots are dry. If possible, do not put the plants too close together and make sure that your rosemary always has enough water. Immediately remove the affected areas to inhibit the spread.
Gray horse on rosemary
Gray mold or botrytis is another fungal disease that thrives in cool and humid conditions. It mainly affects leaves and stems. Badly ventilated environments such as the interior of inadequately ventilated greenhouses or protective bells promote these conditions as well as too dense plants. Improve air circulation and create dry conditions to avoid or stop the problem. Remove all affected parts of the plant.
Rust fungi promote needle shedding
Rust fungi are a group of fungal diseases that discolor leaves and promote premature decay of the leaves. The mushrooms thrive under similar conditions as mildew, that is, in damp and overcrowded places. Ensure good ventilation and plant the rosemary at the correct distance. Clean the affected areas.
Wilt and rot in rosemary
In soil living organisms can cause wilting. Through good plant hygiene and care, wilting, which usually haunts particularly weak and generally not healthy plants, can be avoided. Wilting is especially dangerous for new rosemary seedlings.
Tips & Tricks
You should not use chemical pesticides, such as fungicides, for the treatment of a fungus-infested rosemary, as you will no longer be able to process the herb due to the risk of poisoning. If possible, avoid using biological agents.
IJA