▷ Tulip virus: what it is and why it is necessary to eradicate such tulips

More than 20 different viruses can infect tulips, but the tulip virus that causes petal mottling (Tulipavirus I) is the most common and one of the most dangerous. It spreads very quickly, and some gardeners, out of ignorance, still let such tulips grow in their nurseries, because the variegated flowers look beautiful. However, infected tulips should be destroyed mercilessly. So let’s explain why.

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Why is the tulip virus so dangerous?

Perhaps you too have had a similar situation: you planted single-color tulip bulbs and one or more tulips became speckled during flowering. Then we can already suspect that the tulip virus has entered.

The tulip virus will spread uncontrollably if you don't eradicate diseased tulips. There are also some viral tulips in this photo. photo Lina Lubertaitė.

Why is leaf spot virus considered dangerous? There are several reasons:

The race degenerates: If you have a group of tulips of one variety and a virus gets there, they will have a completely different appearance from at imposed by the characteristics of the variety. Any other tulips grown from infected bulbs will also be discolored. Then comes the disappointment: I bought these, but completely different ones grow…

Weakens the bulb: The tulip virus stunts flower growth and development, and compared to healthy tulips, the flower of an infected tulip is ually smaller and weaker. But what’s worse is that the virus also weakens the bulb itself. Infected bulbs become weaker with each new generation until they die.

Spread by insects, it is difficult to get rid of: Like many other plant viruses, tulip virus is spread by aphids and other insects. The insect-borne virus can infect not only tulips, but also lilies growing nearby.

Difficult to detect before flowering: It is possible to spot infected tulips when they are already in bloom, but it is difficult to do so before the flower has opened. If a virus enters a tulip nursery, it may have already spread to many flowers before it is detected.

How to recognize infected tulips

Symptoms caused by the virus may be more pronounced even before flowering if the bulb is severely damaged. An unopened bud may appear visually smaller than a healthy one, but you will see the real situation only when the flower blooms:

Single-color dark tulips become variegated: the petals of red, purple or pink tulips appear with light stripes.
White and yellow tulips affected by the virus are more difficult to identify, as pigment changes are difficult to see.
Striped and otherwise variegated tulips can also be affected by the virus. You will recognize this when you see unusual variegation: for example, a tulip should be streaked, and many of its petals are not streaked, but spotted. It is also possible that there are no stripes, the petals are one color (although there should have been two).

If in doubt, always check the characteristics of the breed. There are spectacular tulips with variegated petals, variegation of which is a stable feature of the variety. But if your pink tulips have turned to marble, it’s time to say goodbye.

A further sign of recognition is if the tulip leaves are not firm, but strangely deformed, as if they have stripes or dots.

How to destroy infected tulips

There is no cure for the virus, so if you find an infected tulip in your garden, dig it up immediately to reduce the risk of spreading the virus. Important:

The collection will not be enough. It is necessary to dig, and it is advisable even with the whole clod of soil, because the virus can also live in the soil.
Dip the tulip flowers in the vase, but be sure to discard the bulbs.
Do not cut infected tulips with a knife or scissors, as this could spread the virus to other plants.

The tulip virus is said to be invasive and can be returned to the soil through compost, so infected tulips are not suitable for composting. Both harvested diseased flowers and damaged bulbs should be burned or thrown into a separate container. I don’t know how much truth there is, but you already choose how to act.