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      Parasitic wasps against codling moths
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      Predatory mite mix against thrips & spider mites for hanging or scattering
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      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
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      SF nematodes against fungus gnats, codling moths & ants
      SF nematodes against fungus gnats, codling moths & ants
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      HB nematodes against black vine weevils and grubs
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      SF nematodes against codling moth
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      SF nematodes against ants
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      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
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      Food moth trap (10 value pack)
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      Fruit fly window trap with special attractant
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      Fungus gnat window trap with special attractant
      Fly window trap with special attractant
      Fly window trap with special attractant
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      Mosquito window trap with special attractant
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      Silverfish trap with special attractant
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      Larder beetle trap with special attractant
      • against ants
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      Pheromone attractant replacement foils for sticky traps (3 pieces)
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      Bread beetle trap with pheromone attractant
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      Larder beetle trap with pheromone attractant
      Larder beetle trap with pheromone attractant
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Power Neem oil against Colorado potato beetles Power Neem oil against Colorado potato beetles
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Słownik szkodników – Green Guardia

Stonka ziemniaczana: identyfikacja, szkody wyrządzane przez żerowanie i naturalne działanie

Stonka ziemniaczana (Leptinotarsa decemlineata) może w krótkim czasie poważnie uszkodzić rośliny ziemniaka. Larwy powodują w szczególności masywne uszkodzenia liści. Tutaj dowiesz się, jak skutecznie identyfikować stonkę ziemniaczaną, jaja i larwy, jakie szkody są typowe i jakie naturalne metody mogą pomóc.

ⓘLeptinotarsa decemlineata #Larwy stonki ziemniaczanej · Uszkodzenia liści ziemniaków

Czym jest stonka ziemniaczana?

Stonka ziemniaczana to efektowny żółto-czarny chrząszcz o prążkowanych liściach. Zimuje w glebie i pojawia się ponownie na ziemniakach wiosną/wczesnym latem. Po złożeniu jaj wylęgają się larwy, które wyrządzają największe szkody.

szkodnik ziemniaka Larwy żerują obficie zimuje w ziemi

Jak rozpoznać stonki ziemniaczane, jaja i larwy

  • Dorosły chrząszcz: żółty z czarnymi podłużnymi paskami, okrągło-owalny
  • Jajka: jaskrawożółto-pomarańczowe, w grupach na spodniej stronie liści
  • Larwy: czerwonawo-pomarańczowy, gruby, z ciemnymi plamkami po bokach
Wskazówka Green Guardia: Zwróć szczególną uwagę na spodnią stronę liści. Wczesne znalezienie i usunięcie jaj zapobiegnie największym szkodom wyrządzonym przez larwy.

Typowe wzorce uszkodzeń

  • Nieregularne ślady żerowania na liściach
  • Szybkie opadanie liści (znaczna redukcja liści)
  • widoczne skupiska larw na poszczególnych roślinach
  • osłabione rośliny i zmniejszone tworzenie bulw

Które rośliny są dotknięte?

  • Ziemniaki (główny gospodarz)
  • inne rośliny psiankowate (np. bakłażan)
  • Czasami także pomidory (w zależności od regionu/presji inwazji)

Dlaczego dochodzi do zarażenia?

  • Zimowanie w glebie w pobliżu miejsca uprawy
  • Ciepła wiosna przyspiesza rozwój
  • Niewielka kontrola: jaja/larwy pozostają niezauważone.
  • duże plony ziemniaków w okolicy

Naturalna profilaktyka

1. Sprawdzaj regularnie

  • Sprawdzaj spodnią stronę liści co tydzień, począwszy od momentu otwarcia pąków.
  • Sprawdzaj częściej, szczególnie w cieplejsze dni.

2. Płodozmian i lokalizacja upraw

  • Nie uprawiaj ziemniaków co roku w tym samym miejscu.
  • Jeśli to możliwe, zwiększ odległość do obszarów z poprzedniego roku.

3. Wzmocnij rośliny

  • zbilansowana podaż składników odżywczych
  • stałe zaopatrzenie w wodę (nie „stresowa” suchość)

Łagodne środki zwalczające inwazję

  • Usuń skupiska jaj ze spodniej strony liści
  • Zbieraj chrząszcze i larwy (rano/wieczorem)
  • Selektywnie usuwaj silnie porażone liście.

Pożyteczne owady i naturalni wrogowie

W ogrodzie naturalnym różne siły przeciwstawne pomagają zmniejszyć ciśnienie. Należą do nich przede wszystkim: ptaki, chrząszcze biegaczowate i inne drapieżne owady. Jednak najbardziej praktycznym aspektem stonki ziemniaczanej jest to, że... sterowanie mechaniczne (Zbierz jaja/larwy), ponieważ poszczególne stadia są wyraźnie widoczne.

Dlaczego zbiór ręczny jest tak skuteczny: Stonka ziemniaczana składa jaja w grupach – jeśli usuniesz larwy wcześnie, zapobiegniesz wylęgowaniu się wielu larw naraz.

Najczęściej zadawane pytania na temat stonki ziemniaczanej

Kiedy stonka ziemniaczana pojawia się najczęściej?

Zwykle późną wiosną lub latem, w zależności od pogody i regionu. Po okresach cieplejszych jaja i larwy mogą rozwijać się szczególnie szybko.

Gdzie mogę znaleźć jajka?

Prawie zawsze na spodniej stronie liścia – w postaci żółtopomarańczowych torebek z jajami w grupach.

Jak szybko można całkowicie ogołocić roślinę?

W przypadku poważnego zarażenia larwami, rozprzestrzenianie się choroby następuje bardzo szybko – dlatego tak ważne jest wczesne monitorowanie.

Jaki jest najlepszy pierwszy krok w przypadku zarażenia?

Usuń jaja i zbierz larwy. Regularnie sprawdzaj, czy nie przegapiłeś żadnego nowego lęgu.

Szybki przegląd

  • Szkodnik: Stonka ziemniaczana
  • Obszar: Warzywny grządka (ziemniaki)
  • Wzór uszkodzeń: Uszkodzenie liści do całkowitego ich zdarcia
  • Centrum: Usuń jaja, zbierz larwy
✓ Wczesne wykrycie = mniejsze szkody

Typowe objawy

  • Osłonki jaj na spodniej stronie liści
  • czerwonawe larwy z plamkami
  • szybko zwiększające się karmienie
  • kilka larw na jednej roślinie

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Mail: info@greenguardia.de
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