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Oak processionary

Thaumetopoea processionea

Izenari buruz: The name comes from the caterpillars' habit of moving in nose-to-tail lines called processions.1

Min ematen du, besterik ezEz ukituMin ematen du, baina ez dizu kalte larririk egingo.

Beldarrak eta zomorroak

Ile ziztatzaileakJaten du: Landareak

Arriskua pertsonentzat: MingarriaBenetan min handia eman dezake, baina ia inoiz ez da larria.

The oak processionary is a moth whose caterpillars feed on oak leaves and can strip trees bare. The caterpillars travel in long, nose-to-tail lines, which is how they got their name. Their fine, hair-like bristles can irritate skin and breathing, so they matter a lot to people.1

Non bizi den

Central and southern Europe, occasionally as far north as Sweden; now established in the UK and Belgium1

Europa

Hasiera

Oak forests and oak trees, where the caterpillars feed and build silk nests on trunks and branches. People can meet them in oak woodland, on the ground under oaks, and in gardens and parks with oak trees. Their hairs can also reach lawns and garden ponds.1

Luzera

2,5 cm eta 3,5 cm artean (1 in eta 1,4 in artean)1

Abiadura handiena

0,03 km/h inguru (0,02 mph)

Lehorrean, kalkulu gutxi gorabeherakoa

Zer jaten du?

Caterpillars eat oak leaves, feeding in the tree crowns at night and returning to their nests. They also eat the leaves of hazel, hornbeam, sweet chestnut, birch and beech, though oak is preferred.1

Argazkia: Oak processionary — Oak processionary. Argazkia: Kleuske. CC BY-SA 4.0, iNaturalist.

Nola ezagutu

Adult moths have a wingspan of 25 to 35 mm and are tan, brown and white, which makes them hard to see against oak bark.1
Caterpillars have very long, white hairs that contrast with shorter hairs.1
Caterpillars march in lines, often arrow-shaped, with a leader and rows of several caterpillars side by side.1
Nests are white and silk-like when new, and become discoloured and hard to see over time.1
Nests can be round, teardrop-shaped, bag-like or blanket-like, and can be found at any height on an oak tree.1

Askotan honekin nahasten da: Caterpillars of several other species may be mistaken for the oak processionary. Unlike other caterpillars, the oak processionary does not live on fences or walls, so it is mostly found in oak trees or on the ground beneath them in late spring and early summer.1

Pozoi-ahalmena

Ile ziztatzaileak

Ile edo zurda txikiak azalean hausten dira eta ziztatu egiten dute.

Zer egiten du bere pozoiak?

The caterpillars' back bristles contain a urticating toxin called thaumetopoein, a protein that irritates the skin. Contact can cause a papular rash and itching, and the hairs can also cause eye inflammation (conjunctivitis). If the hairs are breathed in, they can cause sore throat (pharyngitis), breathing problems, asthma, or in rare cases anaphylaxis, a severe allergic reaction.1

Zein arriskutsua da pertsonentzat?

Arriskua pertsonentzat: MingarriaBenetan min handia eman dezake, baina ia inoiz ez da larria.

The moths are an increasing nuisance to people as their range grows, and the hairs can cause a skin condition called epidemic caterpillar dermatitis. The hairs break off easily, float in the air, and can stay harmful for several seasons. Mowing a lawn can bring people into contact with them.1

Albiste ona: medikuek badute sendagai bat (antipozoia) edo tratamendu bat honetarako.1

Zer egiten du beldurtzen denean?

The caterpillars defend themselves with thousands of pointed, easily broken bristles on their backs that float in the air and irritate the skin.1

Bere ileak ukitzen badituzu

The skin irritation and itching can be largely relieved by cetirizine-based antihistamine tablets. Anyone with breathing problems or a severe reaction needs urgent medical help.1
Beldar ziztatzaileen ileak: kendu zinta itsaskorrarekin, eta gero garbitu azala. Ez igurtzi.
Koskak: garbitu eta hoztu. Lortu mediku-laguntza pertsona gaizki sentitzen bada edo erraz odoltzen bada.

Deitu beti lehenik zure larrialdi-zenbakira (112, 000, 911). Lehen sorospenei buruzko orientabide orokorra da hau, ez mediku-aholkua. Lehen sorospenen oinarriak

Egon seguru

Ez ukitu, ez harrapatu eta ez zirikatu inoiz animalia basati bat, txikia izan arren, eta lo edo hilda dagoela badirudi ere.
Utzi tartea. Bat aurkitzen baduzu, egon lasai, egin atzera poliki eta utzi bere bidetik joaten.
Bere ileak ukitzen badituzu: egon lasai, egon geldi, deitu zure larrialdi-zenbakira (112, 000, 911) edo joan ospitalera azkar. Gogoratu nolakoa zen, argazki batek laguntzen du.

Ez dabil zure atzetik. Pozoia janaria harrapatzeko edo bere burua babesteko erabiltzen du, eta askoz nahiago du ezkutatu. Seguru egoteari buruz gehiago

Munduko zein tokitan?

Afrika Asia Europa Ipar Amerika Hego Amerika Australia eta Ozeania

Zein handia da?

Zein luzea da?

klip bat bezain luzea, gutxi gorabeheralorategiko barraskilo bat baino motelagoa

Zein handia da Oak processionary ZUREKIN alderatuta?

Matematika hutsa zure nabigatzailean. Ez da ezer gordetzen, ezta inora bidaltzen ere.

Zein azkarra da?

Oak processionary 0,03 km/h inguru (0,02 mph)

Lorategiko barraskilo bat 0,05 km/h inguru (0,03 mph)

Dortoka bat 0,3 km/h inguru (0,19 mph)

jakin beharrekoa

Datuak

Older caterpillars can have up to 63,000 pointed defensive bristles on their backs.1

In 2007, soldiers were deployed to burn infestations in the Belgian province of Limburg.1

The UK government spent £37 million trying to control the caterpillars, which had spread to all 33 London boroughs by 2019.1

In the Netherlands, great tits have been observed eating the young caterpillars before their hairs develop in April.1

In 2023, an outbreak in Ireland was successfully eradicated.1

Pozoi-adituentzat

Izen zientifikoa: Thaumetopoea processionea
Taldea: Beldarrak eta zomorroak
Familia: Notodontidae2
Ordena: Lepidoptera
Kontinenteak: Europa
Kumeak: Eggs hatch into caterpillars that build communal silk nests in oak trees, and the caterpillars later pupate into adult moths in these nests.1
Arriskua pertsonentzat: 2 / 5: Mingarria3

Datuak nondik datozen

Oak processionary (Wikipedia (CC BY-SA 4.0))
Thaumetopoea processionea (iNaturalist): izenak eta sailkapena.
Venom Wiki: arrisku-maila, ohiko tamaina eta abiadura-kalkulua geureak dira. Ikusi nola kalkulatzen ditugun: Nola baloratzen dugun arriskua.

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