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      • Make some
      • green plants
      • Hanging plants
      • Palm trees
      • Succulents
      • Flowering houseplants
      • Houseplant Sets
      • Mediterranean & citrus plants
      • Balcony fruit
      • Flowering potted plants
      • Privacy plants
      • Shade plants
      • Plants for full sun
      • Flowering shrubs
      • Hydrangeas
      • Ground cover
      • Climbing plants
      • Conifers
      • Deciduous trees
      • fruit
      • Roses
      • Ornamental grasses
      • Set di piante da giardino
      • alberi di Natale
      • against codling moths
      • against plum moths
      • against clothes moths
      • against pantry moths
      • against thrips
      • against spider mites
      • against thrips and spider mites
      • against fungus gnats and bird mites
      • against ants
      • against codling moths
      • against flea beetles
      • against vine weevils and grubs
      • against mole crickets & Co.
      • against slugs
      • against fungus gnats & Co.
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    • against potato beetles
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      • against bread beetles
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      • against pantry moths
      • against mosquitoes
      • against fungus gnats
      • against wasps
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      • against bread beetles
      • against cockroaches
      • against common beetles
      • against woodlice
      • against grain weevils
      • against pantry moths
      • against paperfish
      • against carpet beetles
      • against carpet beetles
      • against spiders
      • against silverfish
      • against carpet beetles
      • against vermin / insects
      • against the woolly beetle
      • Attractant replacement films
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      • against bed bugs
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      • against cockroaches
      • against common beetles
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      • against grain weevils
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      • against carpet beetles
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Dizionario dei parassiti – Guardia Verde

Tignola della frutta secca: identificazione, cause e insetti benefici naturali

La tignola della farina (Plodia interpunctella) è uno dei parassiti più comuni dei prodotti conservati in cucine e dispense. Le sue larve infestano i prodotti secchi e possono diffondersi rapidamente. Qui troverete tutte le informazioni importanti sui danni che provoca, le sue cause e gli insetti utili che possono aiutarvi a controllarla.

ⓘPlodia interpunctella · Tignola del cibo #Come riconoscere le tarme della frutta secca · Tarme in cucina

Cos'è la tignola della frutta secca?

La tignola della frutta secca, nota anche come tignola della dispensa o tignola del cibo, depone le uova nei prodotti secchi. Le larve si nutrono di noci, muesli, frutta secca, farina e molti altri prodotti. Sottili ragnatele e larve negli alimenti sono tipici segni di infestazione.

Tarma alimentare Parassita dei prodotti immagazzinati ragnatele nell'area di stoccaggio

Tipici modelli di danno

  • sottili ragnatele negli alimenti o sui bordi delle confezioni
  • piccole larve color crema nell'area di stoccaggio
  • Cibo agglomerato (a causa di ragnatele e materia fecale)
  • Falene che volano in cucina o in dispensa la sera
  • Larve che strisciano sui muri o sugli scaffali
Suggerimento della Guardia Verde: Quando le larve risalgono i muri, cercano un posto dove impuparsi: un chiaro segno di un'infestazione attiva.

Come entrano in casa le tarme della frutta secca?

  • con prodotti alimentari già contaminati dal mercato
  • tramite imballaggi di cartone (le larve perforano pareti sottili)
  • imballaggio aperto o danneggiato
  • Rimozione dagli armadi adiacenti

prevenzione

1. Conservare le forniture in modo sicuro

  • Trasferire in contenitori di vetro o metallo ermetici
  • Evitare imballaggi sottili di plastica o carta
  • Pulisci regolarmente gli scaffali

2. Controlla i tuoi acquisti

  • Esaminare criticamente i prodotti contenenti briciole o fili.
  • Conservare e ispezionare separatamente i prodotti appena acquistati.

3. Freschezza e ordine

  • Non conservare le scorte per troppo tempo.
  • Utilizzare prima i prodotti più vecchi

Misure delicate per combattere l'infestazione

  • Smistare sistematicamente le forniture infestate
  • Svuotare completamente gli armadietti, aspirarli e pulirli con un panno umido.
  • Pulisci accuratamente tutte le crepe, i fori e i fissaggi delle mensole.
  • Trasferire le scorte fresche solo in contenitori puliti.

Insetti naturalmente utili: vespe parassite e pirati dei magazzini

Per il supporto biologico vengono spesso utilizzati due antagonisti naturali:

  • Vespe Trichogramma – sono tradizionalmente utilizzati per parassitare le uova delle tarme.
  • Pirati del campo (Cheyletus eruditus) – Acari predatori che predano le larve di falena e gli acari delle scorte.

Entrambi sono considerati aiutanti naturali e sono innocui per gli esseri umani e gli animali domestici.

Perché gli insetti utili aiutano: Le vespe parassite impediscono lo sviluppo di nuove generazioni di falene, mentre i pirati delle scorte possono ospitare aree larvali difficili da raggiungere: un complemento naturale a una pulizia accurata.

Consigli per una casa senza tarme

  • Conservare le forniture in modo controllato e ermeticamente sigillato
  • Pulisci regolarmente gli armadietti
  • Fare attenzione a tracce di farina e grumi.
  • Utilizzare insetti benefici come supporto naturale

FAQ sulla tignola della frutta secca

Posso ancora mangiare cibo contaminato?

No, sono considerati rovinati e non devono essere ulteriormente utilizzati.

Perché trovo delle larve sul muro?

Le larve abbandonano le riserve di cibo per impuparsi in luoghi asciutti.

La sola pulizia è sufficiente?

Spesso no. La pulizia è la base; gli organismi benefici poi stabilizzano l'area di stoccaggio.

Quanto velocemente si diffondono le tarme della frutta secca?

Molto veloce: una singola falena può deporre fino a 300 uova. La diagnosi precoce è fondamentale.

Panoramica rapida

  • Parassita: falena della frutta secca
  • Zona: cucina, dispensa, dispensa
  • Schema dei danni: Ragnatele, larve, volo di falena

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