Umbellifers powdery mildew (Erysiphe umbelliferum) – identify and control

Umbellifers powdery mildew-identify-control

The umbellifers powdery mildew, Erysiphe umbelliferum is a very common disease that affects carrots, parsnips, and dill.

Symptoms. A white mycelium appears on the leaves of the plants, which eventually becomes dusty/powdery. Under this powder, the tissues turn yellow and dry out. In seed crops, the attack is also observed on the stems. At the end of the vegetation period, the powdery dust changes its color, becoming gray due to small black dots, represented by the fructification of the fungus.

The pathogen. Erysiphe umbelliferum, the fungus spreads during the growing season through spores that germinate easily on the leaves, and from one year to another it resists through the resistance fructification that overwinters on the remains of attacked plants.

Prevention and control. It is recommended to maintain the sowing density, to apply moderate doses of nitrogen, deep plowing, and a crop rotation of 3-4 years. During the growing season, to control the umbellifers powdery mildew, it is recommended to apply treatments with specific fungicides.

Recommended products

Read carefully and follow the instructions on the label of each product
×

We help you
to take care of your plants

If you haven't yet found solutions in our articles or previous discussions, start a new discussion and our experts will help you.

New discussion about

Umbellifers powdery mildew (Erysiphe umbelliferum) – identify and control
Umbellifers powdery mildew (Erysiphe umbelliferum) – identify and control

Your information:

Your name must contain a maximum of 30 characters. If you would like to pass on the details of the problem you are facing, please complete the other fields.

The maximum document size is 59 MB.

Add
It helps if you attach some Images or Clips maximumm 15 sec