Flowers, herbs

Diseases of parsley in the garden: types, how to treat and what to do

Anonim

It's hard to imagine a he althy diet without greens. It contains a huge amount of useful trace elements that have a beneficial effect on the work of the whole organism. Parsley is one of the most affordable varieties of herbs that grows in almost every garden. Despite the ease of cultivation, the crop is often exposed to diseases that can deprive, if not all, then a significant part of the crop. To prevent this from happening, consider the varieties of parsley diseases and how to deal with them.

Diseases of parsley

Growing parsley in their garden, summer residents should pay special attention to disease prevention. The fact is that this culture is susceptible to many diseases: fungal, non-infectious, bacterial and others.

They lead to rotting of root crops, sharply reduce plant growth and the amount of greenery. And some of them completely deprive the crop. This is the main reason why gardeners carry out preventive protective measures. If the disease has already affected the crop, action should be taken urgently.

Powdery mildew

This is the most common crop disease, manifested by a characteristic whitish bloom over the entire surface of plants. Gradually, the plaque darkens, and with it the leaves and stems deteriorate. Greens become tough, and crumble easily with the slightest movement.

The disease spreads rapidly with sudden changes in temperature, persistent heat and dew. Powdery mildew pathogens persist on weeds and plant debris.

Stolbur

Expressed by a reddish tinge to the entire surface of parsley leaves. The disease, as a rule, leads to the formation of peduncles in the first year of plant life. Such seeds usually do not take root or are significantly behind in development.

Septoria, or white spot of parsley

Characteristic whitish spots affect the leaves of the culture from two sides. The disease manifests itself both on adult plants and on small seedlings. Lesions in the form of spots can be noted on the entire surface of parsley: on leaves, stems, petioles.

From the second half of summer, irregularly shaped spots form on the lower leaves of parsley, which gradually change from brown to off-white. Along the edges of the spots, only characteristic dark brown borders remain. Gradually, the disease moves to the upper leaves of greenery. If you look closely, you can see elongated brown spots on the petioles and stems of plants.

Rust

Initially, yellow-brown spots form on the underside of the leaves. Gradually, the pathological process covers the entire terrestrial part of the plants. On the petioles, leaves and stems, small brown spots are formed, the diameter of which varies within 0.7 cm.The spots may be scattered or grouped. The disease usually appears in June.

Parsley rust is a fungal disease that can develop over several generations during the summer. Closer to autumn, the disease tends to appear as solid dark brown spots.

Affected leaves turn yellow, dry out, lose beneficial trace elements and taste.

Phomosis

This disease is also called brown, dry rot. Closer to the base of the stems and at the branching of the foliage, elongated, purple spots and dark stripes form. In parallel, this process may be accompanied by the release of a sticky mass. Gradually, the affected areas dry up and become covered with a fungal coating.

Transferrosis

The disease manifests itself in the early stages of development of umbrella. It affects all parts of the plant. A characteristic white coating forms on the leaves.Affected roots stop growth, causing the plant to become corrugated and small. During the flowering period and after it, the baskets and leaves are covered with pale or dark green spots.

If the disease affects large plants, the manifestation of the disease begins with the upper leaves. Areas near the main veins turn yellow. Gradually, a white coating appears on the underside of the leaves, resembling cotton wool in consistency. The disease leads to thinning of plants, as a result of which up to 30% of the crop can be lost.

Fight against diseases of parsley

Any disease is easier to prevent than to save the plant from death. This requires proper care of the crop: timely feeding, fertilizer, weed control, loosening the soil. But what to do if pests have already attacked? In this case, you should start an active fight.

Powdery mildew can be controlled with colloidal or ground sulfur.Using a cotton pad, it lubricates the leaves and stems of plants. If the disease continues to spread, the greens are treated with mullein infusion. Plants affected by the disease are uprooted and thrown away from the garden plot.

Pay attention! To reduce the likelihood of disease, it is important to alternate the cultivation of parsley with tomatoes, legumes and beets.

If parsley is grown in a greenhouse, it is important to observe the temperature regime for the prevention of diseases (not lower than 20 degrees at night, and not lower than 24 degrees during the day).

It is important to know that many diseases are seed-borne. Therefore, in a comprehensive fight against them, it is important to adhere to the following measures:

  • foliar spray using 0.04% borax solution;
  • fertilize areas for crops with potash and phosphate;
  • destroy all remnants of plants and weeds after harvesting;
  • sow parsley in well-drained and ventilated soil;
  • produce timely thinning of plants; this method will reduce the chance of powdery mildew.

It is very important to disinfect seeds before sowing. They are soaked for 20 minutes in water, the temperature of which is not higher than 20 degrees. Then cool in cold water and dry.