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      • Make some
      • green plants
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      • against codling moths
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    • for plant care
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      Outsider Box - Surprise Box - Mix of unique plants - 8-12 plants per set
      Outsider Box - Surprise Box - Mix of unique plants - 8-12 plants per set
      Scindapsus Pictus 'Argyraeus' – Spotted Ivy - 15-25 cm
      Scindapsus Pictus 'Argyraeus' – Spotted Ivy - 15-25 cm
      Ficus Lyrata – Fiddle-leaf Fig – 30-130 cm
      Ficus Lyrata – Fiddle-leaf Fig – 30-130 cm
      Surprise Box – Mix of Houseplants – 5-10 plants per set
      Surprise Box – Mix of Houseplants – 5-10 plants per set
      Ficus Ginseng – Bonsai-Feige, 40–70 cm
      Ficus Ginseng – Bonsai-Feige, 40–70 cm
      Ceropegia woodii – Lantern flower - 14 cm pot, 50 cm tall
      Ceropegia woodii – Lantern flower - 14 cm pot, 50 cm tall
      • Make some
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      Balcony plants
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      Yellow Kiwi “Golden Kiwi” (Actinidia deliciosa), 2 plants, 50 cm tall
      Yellow Kiwi “Golden Kiwi” (Actinidia deliciosa), 2 plants, 50 cm tall
      Mini kiwi “Issai” – Actinidia arguta, 2 plants, 11 cm pot, approx. 40 cm height
      Mini kiwi “Issai” – Actinidia arguta, 2 plants, 11 cm pot, approx. 40 cm height
      Apple tree “Elstar” – in a pot, 90 cm tall
      Apple tree “Elstar” – in a pot, 90 cm tall
      Fig tree “Little Miss Figgy” (Ficus carica) Organic – 23 cm pot, approx. 50 cm tall
      Fig tree “Little Miss Figgy” (Ficus carica) Organic – 23 cm pot, approx. 50 cm tall
      Bay laurel (Laurus nobilis) – 35–130 cm
      Bay laurel (Laurus nobilis) – 35–130 cm
      Trachycarpus fortunei – robust, hårdfør palme, 21 cm potte, 90-100 cm højde
      Trachycarpus fortunei – robust, hårdfør palme, 21 cm potte, 90-100 cm højde
      • Mediterranean & citrus plants
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      Fig tree “Brown Turkey” (Ficus carica) – 19cm pot, 90cm tall
      Fig tree “Brown Turkey” (Ficus carica) – 19cm pot, 90cm tall
      Nobilis gran – mini juletræ, 30–60 cm
      Nobilis gran – mini juletræ, 30–60 cm
      Yellow Kiwi “Golden Kiwi” (Actinidia deliciosa), 2 plants, 50 cm tall
      Yellow Kiwi “Golden Kiwi” (Actinidia deliciosa), 2 plants, 50 cm tall
      Mini kiwi “Issai” – Actinidia arguta, 2 plants, 11 cm pot, approx. 40 cm height
      Mini kiwi “Issai” – Actinidia arguta, 2 plants, 11 cm pot, approx. 40 cm height
      Apple tree “Elstar” – in a pot, 90 cm tall
      Apple tree “Elstar” – in a pot, 90 cm tall
      Hibiscus syriacus 'Tricolour' – standardtræ til terrasse og have, 19 cm potte, 90 cm højde
      Hibiscus syriacus 'Tricolour' – standardtræ til terrasse og have, 19 cm potte, 90 cm højde
      • Flowering shrubs
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      • Haveplantesæt
    • Sæsonbestemte specialiteter
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      Sæsonbestemte specialiteter
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      Fig tree “Brown Turkey” (Ficus carica) – 19cm pot, 90cm tall
      Fig tree “Brown Turkey” (Ficus carica) – 19cm pot, 90cm tall
      Outsider Box - Surprise Box - Mix of unique plants - 8-12 plants per set
      Outsider Box - Surprise Box - Mix of unique plants - 8-12 plants per set
      Scindapsus Pictus 'Argyraeus' – Spotted Ivy - 15-25 cm
      Scindapsus Pictus 'Argyraeus' – Spotted Ivy - 15-25 cm
      Ficus Lyrata – Fiddle-leaf Fig – 30-130 cm
      Ficus Lyrata – Fiddle-leaf Fig – 30-130 cm
      Surprise Box – Mix of Houseplants – 5-10 plants per set
      Surprise Box – Mix of Houseplants – 5-10 plants per set
      Ficus Ginseng – Bonsai-Feige, 40–70 cm
      Ficus Ginseng – Bonsai-Feige, 40–70 cm
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      parasitic wasps
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      Parasitic wasps against food moths
      Parasitic wasps against food moths
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      Parasitic wasps against clothes moths
      Parasitic wasps against codling moths
      Parasitic wasps against codling moths
      Parasitic wasps against plum moths
      Parasitic wasps against plum moths
      • against codling moth
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      • against whiteflies
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      Predatory mites against thrips for hanging or scattering
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      Predatory mites against spider mites for hanging or scattering
      Predatory mite mix against thrips & spider mites for hanging or scattering
      Predatory mite mix against thrips & spider mites for hanging or scattering
      Predatory mite mix against fungus gnats & red bird mites – loose product
      Predatory mite mix against fungus gnats & red bird mites – loose product
      Predatory mites against thrips – loose product
      Predatory mites against thrips – loose product
      Predatory mite mix against thrips & spider mites – loose product
      Predatory mite mix against thrips & spider mites – loose product
      • against thrips
      • against spider mites
      • against thrips & spider mites
      • against fungus gnats & bird mites
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      SF nematodes against fungus gnats, codling moths & ants
      SF nematodes against fungus gnats, codling moths & ants
      HB nematodes against black vine weevils and grubs
      HB nematodes against black vine weevils and grubs
      SF nematodes against codling moth
      SF nematodes against codling moth
      SF nematodes against ants
      SF nematodes against ants
      SF nematodes against flea beetles
      SF nematodes against flea beetles
      SC nematodes against mole crickets, meadow crane flies and cutworms
      SC nematodes against mole crickets, meadow crane flies and cutworms
      • against ants
      • against codling moth
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      • against black vine weevils & grubs
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      • against snails
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    • Other beneficial organisms
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      Other beneficial organisms
      • Lacewing larvae / eggs
      • Camp pirates
      • Woodpecker wasps
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    Defense spray
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    • against ants
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    • against ticks for dogs
    • against horseflies for horses
    • against insects for horses
    • against woodworms
    • against cockroaches
    • against lice
    • mod mus/rotter
    • against moths
    • against mites
    • against pests
    • against spiders
    • against silverfish
    • against wasps
  • Neem oil
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    Neem oil
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    • for plant care
    • against ants
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    • against box tree moth
    • against Colorado potato beetles
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    Traps
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      Window traps
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      Food moth trap (10 value pack)
      Food moth trap (10 value pack)
      Bread beetle window trap with special attractant
      Bread beetle window trap with special attractant
      Fruit fly window trap with special attractant
      Fruit fly window trap with special attractant
      Fungus gnat window trap with special attractant
      Fungus gnat window trap with special attractant
      Fly window trap with special attractant
      Fly window trap with special attractant
      Mosquito window trap with special attractant
      Mosquito window trap with special attractant
      • against bread beetles
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      • against flying insects
      • against fruit flies
      • against food moths
      • against mosquitoes
      • against fungus gnats
      • against wasps
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      Paper traps
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      Paper fish trap with special attractant
      Paper fish trap with special attractant
      Bed bug trap with special attractant
      Bed bug trap with special attractant
      Bread beetle trap with special attractant
      Bread beetle trap with special attractant
      Silverfish trap with special attractant
      Silverfish trap with special attractant
      Cockroach trap with special attractant
      Cockroach trap with special attractant
      Larder beetle trap with special attractant
      Larder beetle trap with special attractant
      • against ants
      • against bed bugs
      • against bread beetles
      • against cockroaches
      • against common beetles
      • against woodlice
      • against grain beetles
      • against food moths
      • against paper fish
      • against fur beetles
      • against larder beetles
      • against spiders
      • against silverfish
      • against carpet beetles
      • against vermin / insects
      • against woolly aphid beetle
    • Reusable traps
      Vend tilbage
      Reusable traps
      Kollektionsprodukter
      Paper fish trap with pheromone attractant
      Paper fish trap with pheromone attractant
      Bed bug trap with pheromone attractant
      Bed bug trap with pheromone attractant
      Pheromone attractant replacement foils for sticky traps (3 pieces)
      Pheromone attractant replacement foils for sticky traps (3 pieces)
      Bread beetle trap with pheromone attractant
      Bread beetle trap with pheromone attractant
      Cockroach trap with pheromone attractant
      Cockroach trap with pheromone attractant
      Larder beetle trap with pheromone attractant
      Larder beetle trap with pheromone attractant
      • Attractant replacement foils
      • against ants
      • against bed bugs
      • against bread beetles
      • against cockroaches
      • against common beetles
      • against woodlice
      • against grain beetles
      • against paper fish
      • against fur beetles
      • against larder beetles
      • against silverfish
      • against carpet beetles
      • against vermin / insects
      • against woolly aphid beetle
  • Savings bundles
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    Savings bundles
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    • against ants
    • against bed bugs
    • against fungus gnats
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    • against plant pests (for 10 plants)
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Parasitic wasps against codling moths Parasitic wasps against codling moths
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Skadedyrsordbog – Green Guardia

Europæisk majsborer: Genkendelse og naturlig forebyggelse af fodringsskader på majs

Den europæiske majsborer er en møl, hvis larver primært skader majsplanter. De borer sig ind i stilke og aks, hvilket svækker planterne og forårsager yderligere skade. Her lærer du, hvordan du identificerer den europæiske majsborer, og hvordan du forebygger den ved hjælp af naturlige metoder.

ⓘOstrinia nubilalis #Europæiske majsborerlarver · Borende gange i stilken

Hvad er den europæiske majsborer?

Den europæiske majsborer er en natsværmer. De voksne natsværmere er ikke iøjnefaldende, men larverne er problematiske. larverEfter klækning graver de sig ned i stængler, bladhjørner og blomkål, hvor de lever beskyttet inde i planten.

Larver i stilken sommerfugl flere udviklingsstadier
En meddelelse: Skader opdages ofte først sent, da larverne lever inde i planten. Tidlig observation af møllernes flugt er derfor særligt vigtig.

Sådan genkender du en angreb

  • Borehuller og fodergange i majsstænglerne
  • planter, der bøjer eller knækker
  • Fodringsmærker på bladhjørner eller stempler
  • Hvidgule larver inde i planten
Green Guardia-tip: Tjek planterne regelmæssigt i den primære flyvesæson for at opdage æg eller tidlige tegn på fødeudtagning.

Hvilke planter er berørt?

  • Sukkermajs og fodermajs
  • delvist også hirse og andre græsser

Hvorfor opstår der angreb?

  • Sommerfugleflugt i varmt sommervejr
  • mangel på naturlige modstandere
  • resterende afgrøderester (overvintring)
  • tætte bevoksninger med ringe luftcirkulation

Hvad skal man gøre i tilfælde af angreb? (naturligt og fornuftigt)

1. Forebyggelse i havebedet

  • Tjek planterne regelmæssigt
  • Fjern majsstubbe efter høst
  • Sædskifte

2. Mekaniske foranstaltninger

  • Fjern stærkt angrebne plantedele
  • Efterlad ikke planterester i blomsterbedet.

Anbefalede gavnlige insekter: Parasitiske hvepse (Trichogramma)

Parasitiske hvepse af slægten Trichogramma Disse er dokumenterede naturlige fjender af den europæiske majsborer. De parasiterer møllens æg og forhindrer larverne i at klække overhovedet. Disse gavnlige insekter er små, harmløse for mennesker og forsvinder af sig selv, når der ikke er flere æg til stede.

Hvorfor parasitiske hvepse er nyttige: Den største indflydelse ligger hos ægget. Parasitiske hvepse er målrettet mod netop dette område og hjælper med at reducere angrebspresset på et tidligt stadie.

Ofte stillede spørgsmål om den europæiske majsborer

Hvornår er den største fare for majs?

I sommerfuglenes flyvesæson om sommeren. I denne fase lægges æggene, hvorfra de skadelige larver senere klækkes.

Hvorfor bøjer majsplanter sig?

Planten mister stabilitet på grund af fødegange i stilken og kan knække i vind eller regn.

Er parasithvepse alene tilstrækkelige?

De er et rigtig godt supplement. Den optimale tilgang er en kombination af forebyggelse, plantehygiejne og brug af gavnlige insekter.

Hvad er den vigtigste forebyggende foranstaltning?

Fjern planterester efter høst og planlæg brugen af gavnlige insekter på det rette tidspunkt.

Hurtigt overblik

  • Skadedyr: Europæisk majsborer
  • Areal: Have, kornmark
  • Tegn: Borehuller, ødelagte planter
  • Nyttige insekter: Parasitiske hvepse (Trichogramma)
✓ Stop æglægning tidligt

Typiske tegn

  • Sommerfugleflugt om sommeren
  • Skader inde i stilken
  • sen synlighed af skader
  • Overvintring i planterester

Green Guard

- The leading provider of natural pest control.
Reliable solutions for home, garden and business. Sustainable, safe and proven – plus a wide selection of plants of all kinds.

Mail: info@greenguardia.de
Tel.: +49 157 9238 4135

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