Oak processionary
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

Co renconuscher el
- 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
Savens confundì cun: 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
Forza dal tissi
Pitschens pails u spinas finas sa rumpan en la pel e piztgan.
Tge fa ses tissi?
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
Quant privlus è el per umans?
Privel per umans: DolurusQuai po far propi mal, ma i n'è bunamain mai grav.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
Bunas novitads: ils medis han in medicament (antiserum) u in tractament per quai.1
Tge fa el, cura ch'el ha tema?
The caterpillars defend themselves with thousands of pointed, easily broken bristles on their backs that float in the air and irritate the skin.1
Sche ti tutgas ses pails
- 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
- Tar pails da rujas che piztgan: auza els davent cun in bindel adesiv, lava lura la pel. Na sfruscha betg.
- Tar morsas: lava e sfradenta. Tschertga agid medicinal, sche la persuna na sa senta betg bain u sanguinescha facilmain.
Clama adina l'emprim tes numer d'urgenza (112, 000, 911). Quai è in cussegl general d'emprim agid, betg in cussegl medicinal. Basa da l'emprim agid
Resta en segirezza
- Na tutga, na piglia e na tizza mai in animal selvadi, gnanc in pitschen, ed era sch'el para da durmir u d'esser mort.
- Dà spazi a l'animal. Sche ti scuntras in, resta calm, va plaun enavos e lascha ir el per sia via.
- Sche ti tutgas ses pails: resta calm, na ta mova betg, clama tes numer d'urgenza (112, 000, 911) u va spert en in ospital. Ta regorda co ch'el veseva or, ina foto gida.
El n'ha betg quai sin tai. El dovra ses tissi per pigliar nutriment u per sa defender, e sa zuppa bler pli gugent. Dapli davart la segirezza
Quant grond è el?
Quant lung è el?
var uschè lung sco in clip da palpiri
pli plaun ch'ina lindorna da curtinQuant grond è Oak processionary cumpareglià cun TAI?
Mo matematica en tes navigatur. Nagut na vegn memorisà u tramess.
Quant svelt è el?
Fatgs
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
Per experts da tissi
Da nua che vegnan ils fatgs
- Oak processionary (Wikipedia (CC BY-SA 4.0))
- Thaumetopoea processionea (iNaturalist): nums e classificaziun.
- Venom Wiki: il stgalim da privel, la grondezza tipica e la stima da la sveltezza èn noss agens. Guarda co che nus als calculain: Co che nus valitain il privel.
Mintga fatg sin questa pagina ha in numer che renvia a sia funtauna. Sche nus avain fatg in sbagl, perstgisa, nus essan fans d'animals, betg ina revista scientifica. Scriva a nus a [email protected] e nus curregin.
Pails che piztgan