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      Scindapsus Pictus 'Argyraeus' – Spotted Ivy - 15-25 cm
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      Bay laurel (Laurus nobilis) – 35–130 cm
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      Nobilis gran – mini juletræ, 30–60 cm
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      Yellow Kiwi “Golden Kiwi” (Actinidia deliciosa), 2 plants, 50 cm tall
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      Apple tree “Elstar” – in a pot, 90 cm tall
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      Hibiscus syriacus 'Tricolour' – standardtræ til terrasse og have, 19 cm potte, 90 cm højde
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      Outsider Box - Surprise Box - Mix of unique plants - 8-12 plants per set
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      Predatory mite mix against fungus gnats & red bird mites – loose product
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      Predatory mites against thrips – loose product
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      Predatory mite mix against thrips & spider mites – loose product
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Skadedyrsordbog – Green Guardia

Myg: Identifikation, årsager og larver i græsplænen

Tranefluer kaldes ofte i daglig tale "myg". De voksne fluer er normalt harmløse, men larverne af visse arter (f.eks. tranefluelarver) kan æde rødder i græsplæner og svække græsset. Her lærer du om de vigtigste karakteristika, typiske tegn og naturlige bekæmpelsesforanstaltninger.

ⓘTipulidae · Hårede myg #Myg i huset · Larver i græsplænen

Hvad er hårfluer?

Fluer (familien Tipulidae) er store, langbenede insekter, der ofte ses i hjem eller omkring vinduer. De voksne insekter bider ikke og er generelt harmløse. Larverne af visse arter er dog vigtige: de lever i jorden og kan spise rødder og planterester.

også "myg" langbenede flyvende insekter Larver i jorden

Typiske tegn

  • store, slanke insekter med meget lange ben i huset eller haven
  • Hyppige observationer ved vinduer (især om aftenen)
  • I haven: udtynding af græsplænen eller bare pletter (i tilfælde af kraftig larveangreb)
  • Flere fugle i græsplænen (de leder efter larver)
  • Ved inspektion: gråbrune, benløse larver i jorden ("læderhuder")
Green Guardia-tip: Hvis du kun ser voksne tranefluer, er det normalt ikke et problem. Det bliver primært relevant, når pletter af græsplænen bliver svage, og larver findes i jorden.

Skader forårsaget af larver (tranefluelarver)

Larverne af visse arter af hårmyg betragtes ofte som tranefluelarver De kaldes fluer. De lever af græsrødder og kan forårsage mærkbar skade på græsplænen, især om efteråret og foråret.

  • Græsplænen bliver gullig, tynd eller plettet.
  • Bare pletter trods vanding
  • Græsser er nemmere at trække ud.
  • Følgeskader forårsaget af fugle eller pindsvin, der søger efter larver

Hvordan opstår en angreb?

  • Æglægning af behårede myg i fugtige græsplæner
  • Høj luftfugtighed og tæt vegetation favoriserer larver.
  • Milde vintre øger overlevelsesraten
  • Dårlig jord og lavt jordlevetid kan forværre problemerne

Forebyggelse i haven

1. Plænepleje

  • Slå ikke græsplænen for kort permanent.
  • Reducer græsplænens filtdannelse (vertikalisér efter behov)
  • Gødsk på en afbalanceret måde og fremme en rodfæstet græsplæne.

2. Kontroller luftfugtigheden

  • Undgå vandmætning
  • Vand om morgenen i stedet for aftenen
  • løsne komprimerede jorde

Skånsomme foranstaltninger ved mistanke om larver

  • Løft sektioner af græsplænen op, og kontroller antallet af larver/larver.
  • Gensåning i beskadigede områder
  • Opmuntr fugle som naturlige hjælpere (vandingssteder, naturområder)

Naturlige gavnlige organismer: Nematoder mod larver

mod jordlevende larver af hårmyg Nematoder (mikroskopiske rundorme) kan være en naturlig støtte. De er ofte Steinernema-Anvendte arter, der bliver aktive i fugtig jord og når larvestadier.

  • De virker direkte i jorden (larvernes levested)
  • støtte reduktionen af larvestadier
  • Ufarlig for mennesker, kæledyr og planter
Hvorfor nematoder hjælper: Myg-larver er svære at nå i jorden. Nematoder virker præcis der, hvor larverne søger føde – som et naturligt supplement til god græsplænepleje.

Ofte stillede spørgsmål om hårmyg

Bider myg?

Nej. Hårmyg bider ikke. De virker kun "truende" på grund af deres størrelse og flyveadfærd, men de er harmløse.

Hvorfor har jeg så mange myg i huset?

De kommer ofte ind gennem åbne vinduer, især om aftenen når lyset er tændt. Flueskærme er meget effektive.

Hvordan kan jeg identificere larver i græsplænen?

Hvis din græsplæne er beskadiget, kan du løfte et lille område og kontrollere jorden: tranefluelarver er normalt gråbrune og benløse.

Hvornår er nematoder nyttige?

Hvis der findes mange larver i jorden, og græsplænen er mærkbart svækket, er tilstrækkelig jordfugtighed vigtig for at holde nematoderne aktive.

Hurtigt overblik

  • Insekt: Myg ("myg")
  • Areal: Have, græsplæne, nær huset
  • Problem: Larver i jorden (plæneskader)
  • Nyttige insekter: Nematoder (Steinernema)
✓ Naturligt støttende i jorden

Typiske problemer

  • store "myg" ved vinduet
  • Græsplænen bliver ujævn eller gul.
  • Fuglene hakker tydeligt i græsplænen
  • Larver er svære at finde

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