2024 Author: Gavin MacAdam | [email protected]. Last modified: 2023-12-16 13:38
Keela of cabbage is a widespread fungal disease of all types of cabbage. Also, keela can affect radishes, radishes and a huge number of weeds. In most cases, you can meet with a similar scourge in lowered areas in which water stagnates. Having discovered this disease, you should direct all efforts as soon as possible to get rid of it as soon as possible
About the disease
The spread of the misfortune occurs by spores of pathogenic fungi through the soil or manure - in them the spores can be viable for several years. Fungi penetrate into vegetation through root hairs.
On the roots of the affected cabbage, you can see fusiform or spherical growths - at the very beginning of the development of the disease, they have the same color with the roots, later these growths, turning brown, begin to rot. The result of this disease is a violation of the supply of nutrients and water. And the spores of parasitic fungi released from the growths in a huge amount become the cause of prolonged contamination of the soil.
Plants affected by the keel are depressed, stunted and often wither. The heads of cabbage look noticeably underdeveloped. Keela affects not only the roots of adult plants, but also the roots of seedlings. In the case of a lack of moisture, it spreads much more actively. Also, the likelihood of infection increases in acidic soils. Vegetation can be affected by the keel at any age, but fast-growing young crops are the most affected by this disease.
How to fight
For preventive purposes, you should constantly get rid of weeds, and even those that grow in the aisles. It is imperative to eliminate plant residues from the beds.
When growing cabbage, it is extremely important to observe the rules of crop rotation - earlier than three years later, it is better not to return cabbage to the previous beds.
There are varieties of cabbage that are distinguished by resistance to keel - first of all, it is better to pay attention to them. For example, among the resistant varieties of white cabbage, one can note - Kilaton F1, Tequila F1, Kilagerb F1, Kilagreg F1, Beijing - Janine F1, Suprin F1, and colored - Clapton F1 and Clarifay F1.
Seeds for sowing should be taken only from healthy plants, and thoroughly processed before sowing. Also, before planting, cabbage roots are recommended to be processed in suspensions of sulfur-containing preparations - these are not only the well-known colloidal sulfur, but also preparations of VDG, TIOVIT JET.
In order to prevent the development of a keel when planting cabbage, the holes intended for it are watered with milk of lime - 800 g of fluff lime is diluted in ten liters of water for this; the resulting solution is used at the rate of 250 g for each well. It is also allowed to pour into each well a half liter of 0.5% suspension of colloidal sulfur.
Liming the soil will help to reduce the intensity of the development of the disease, and high hilling of vegetation can slow down its development. Before the autumn digging of the soil, fluff lime is added to the places where cabbage was grown (at least 500 - 600 g per square meter). A year later, liming is repeated.
During the growing season, after feeding and watering, it is necessary to spud the cabbage so that it begins to form additional roots. Withering vegetation is carefully removed, carefully making sure that no harmful swelling growths remain in the soil.
After the autumn harvest by digging in, it is necessary to remove all stumps from the beds in order to avoid their further decay and the formation of growths. Also in the autumn period, it is recommended to add to the soil chopped after harvesting beet tops, pretreated with the Siyanie-1 preparation. The tops, together with the infected soil, are dug to a depth not exceeding 10 cm.
To work on infected beds, separate tools should be selected, and the work itself should be carried out with gloves and rubber boots. Before you go to healthy beds, it is imperative to change your shoes.
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