2024 Author: Gavin MacAdam | [email protected]. Last modified: 2023-12-16 13:38
White rot of tulips, also called sclerocial rot, is an extremely unpleasant disease. The bulbs and stems of tulips attacked by the ill-fated disease are covered with an unpleasant and well-visible white bloom, which consists of sclerotia and fungal mycelium, infecting healthy bulbs during their winter in the soil. First, the pathogen attacks the necks of the bulbs, and after some time, it covers the rest of the flowers. If you do not start to quickly deal with white rot, then there will be much less tulips on the site than we would like
A few words about the disease
There are several varieties of white rot of tulips. In the first case, a malicious attack attacks the necks of the bulbs and growth points, which begin to become covered with a dense felt coating, initially painted white, and after a while turning brown. And a little less often, an ill-fated ailment can manifest itself around the growth points of the bulbs in the form of weeping rot, which slowly covers the bulbs entirely, and they die without having time to sprout. Infected flowers most often die during the growing season.
The main sign of infection is the unevenness of spring seedlings. Infected bulbs either do not germinate at all, or give extremely weakened seedlings, which turn yellow over time and subsequently die. It is noteworthy that infected tulips are characterized by a healthy root system - oddly enough, the pathogen fungus does not infect it. And on the shoots of tulips affected by the ailment, watery spots appear, after some time they turn into bluish-grayish shades.
With lightning speed, the white rot of tulips spreads in storage facilities, especially if the humidity in them is quite high - the bulbs are instantly covered with a cotton-like white bloom and rather large and very dense sclerotia of the most diverse forms.
This disease is caused by fungi called Sclerotium tuliparium and Scleritinia bulborum. Infection of flowers almost always occurs through the soil - fungal spores remain viable in it for up to five years. And the spread of a harmful disease is largely facilitated by high humidity and acidic soils.
How to fight
About a month before planting the bulbs, the thoroughly treated soil should be shed with a carbation solution (from 2, 5 - 3% to 6%), spending ten liters of the product per square meter. And after processing, the soil is watered.
Compliance with crop rotation is considered to be an excellent preventive measure - tulips can be returned to their previous sites only after five years. It is not recommended to plant these beautiful flowers after crocuses with lilies and daffodils with irises - all of them are also susceptible to attacks of white rot. If it is not possible to transplant tulips to a new place, it is necessary to disinfect the diseased soil with a formalin solution (1.5%) (ten liters of solution for each square meter of the plot). It is necessary to carry out such processing at positive temperatures, and after it the soil should be tightly covered for a couple of days. In addition, boxes, tools and tools, with which the infection can theoretically be transmitted, are subjected to disinfection with formalin.
It is not recommended to over-thicken tulip plantings, otherwise the infection will actively spread to healthy plants. Moreover, for preventive purposes, they periodically need to be treated with fungicides: first, as soon as the length of the peduncles reaches 7-10 cm, and then every one and a half to two weeks. Most often, suspensions of "Euparen", "Kaptan", "Kuprozan" and "Fundazol" are used for such treatments.
If it was possible to find infected tulip bulbs, then they should be removed and destroyed (together with a clod of earth and with the aboveground part), and the places from which they were extracted should be sprinkled with ash.
Recommended:
7 Common Questions About Tulips
Tulips are planted by all summer residents. Beginners have questions: why they do not bloom or the buds become small, when to dig / plant, what to do after flowering. Consider frequently asked questions
Tomato White Rot
White rot is especially ruthless when storing tomatoes. A sharp manifestation of this dangerous ailment can also be observed if during the period of planting tomato seedlings in greenhouses there is high humidity (about 95%) in combination with an air temperature of twelve to fifteen degrees. With increasing humidity, the likelihood of tomato infection increases significantly. However, the manifestation of white rot is usually focal in nature, therefore, this attack does not lead to one hundred percent crop losses
Defeat White Rot
White rot, developing rapidly, attacks many varieties of plants. Very often it affects cabbage growing on heavy loamy soils, harms the harvest of onions and garlic, and also causes significant losses of carrots. It is no less dangerous for tomatoes, cucumbers, beans and peas. In order not to lose the harvest, this disease should be actively combated
White Rot Of Grapes
White rot of grapes, also called hail disease, attacks mainly the ridges and berries of this delicious crop. True, sometimes it can affect shoots with leaves. Affected berries have a bitter taste and an unpleasant odor and often crack. And their surface is almost always covered with very unpleasant bumps of off-white shades. Gradually, the berries turn reddish-brown, wrinkle and dry out quickly. If white rot appears on the wine
Cucumber White Rot
Cucumber white rot is found almost everywhere cucumbers are grown. Gardeners especially often encounter it indoors. And this attack develops on all parts of growing crops - from the roots to the very fruits. At the same time, white rot can attack cucumbers at any stage of their development - from the moment of the appearance of tiny shoots and up to the formation of fruits. Young plants at the very beginning of summer often die as a result of damage to the stems and the root system. except
