Ash And Birch Pollen Replace Hazel And Alder In Switzerland

(MENAFN- Swissinfo) Following a very high concentration of hazel and alder pollen in the air in some places, allergy sufferers will have to be prepared for ash and birch pollen in the coming weeks. However, more and more ash trees are dying in Switzerland due to an East Asian fungus. This content was published on March 25, 2025 - 15:11 2 minutes Keystone-SDA

• Deutsch de Eschen- und Birkenpollen lösen Hasel- und Erlenpollen ab Original Read more: Eschen- und Birkenpollen lösen Hasel- und Erlenpollen a

+Get the most important news from Switzerland in your inbox

The ever-spreading fungus causes the so-called ash dieback or ash wilt, the weather service MeteoNews reported on Tuesday. Young trees in particular die in rows after infection. Older trees die slowly over several years. This is why the concentration of ash pollen is generally declining. The ash pollen season began around a week ago.

In the next few days, however, the highly allergenic birch trees will also begin to bloom. According to the press release, one in five people in Switzerland is allergic to the most allergenic type of pollen among the trees.

+ City dwellers more likely to suffer from hay fever

In future, olive pollen could also increasingly affect allergy sufferers in this country. Like ash trees, which belong to the olive family, olive trees produce a lot of pollen. As it is getting milder in Switzerland, it is conceivable, according to MeteoNews, that the cultivation of olives will also begin in Switzerland.

The olive tree family also includes forsythia, lilac, jasmine, privet and broom. However, these trees and shrubs produce significantly less and also less aggressive pollen.

Translated from German by DeepL/ts

This news story has been written and carefully fact-checked by an external editorial team. At SWI swissinfo we select the most relevant news for an international audience and use automatic translation tools such as DeepL to translate it into English. Providing you with automatically translated news gives us the time to write more in-depth articles.

If you want to know more about how we work, have a look here , if you want to learn more about how we use technology, click here , and if you have feedback on this news story please write to ... .

Popular Stories More Swiss Abroad Ups and downs: Swiss drivers benefit from world's only mobile bridge Read more: Ups and downs: Swiss drivers benefit from world's only mobile bridg

MENAFN26032025000210011054ID1109357242