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      Abete Nobilis – mini albero di Natale, 30–60 cm
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      Yellow Kiwi “Golden Kiwi” (Actinidia deliciosa), 2 plants, 50 cm tall
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      Mini kiwi “Issai” – Actinidia arguta, 2 plants, 11 cm pot, approx. 40 cm height
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      Apple tree “Elstar” – in a pot, 90 cm tall
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      Hibiscus syriacus 'Tricolour' – albero standard per patio e giardino, vaso da 19 cm, altezza 90 cm
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      Outsider Box - Surprise Box - Mix of unique plants - 8-12 plants per set
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      Ficus Lyrata – Fiddle-leaf Fig – 30-130 cm
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      Surprise Box – Mix of Houseplants – 5-10 plants per set
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      Predatory mite mix against fungus gnats & red bird mites – loose product
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      Predatory mite mix against thrips & spider mites – loose product
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      Pheromone attractant replacement foils for sticky traps (3 pieces)
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Dizionario dei parassiti – Guardia Verde

Tignola del bosso: riconoscere le ragnatele e la defogliazione del bosso – agire in modo naturale

IL falena del bosso Questo è uno dei motivi più comuni per cui gli arbusti di bosso diventano improvvisamente marroni e "senza nutrimento". I bruchi si nutrono prima all'interno della pianta, protetti in ragnatele – di conseguenza, un'infestazione spesso passa inosservata all'inizio. I segnali tipici sono: sottili ragnatele, briciole di cacca e foglie chiaramente danneggiate fino al defogliazioneQui imparerai come identificare in modo affidabile la tignola del bosso e ridurre la pressione dell'infestazione con misure sensate e naturali.

ⓘCydalima perspectalis (Crambidae) · Falena del bosso #Ragnatele · Bruchi · Defogliazione

Cos'è la falena del bosso?

La falena del bosso (Cydalima perspectalis) è una falena i cui bruchi si nutrono quasi esclusivamente di Bosso (Buxus) Si sviluppano. I bruchi mangiano le foglie e, in caso di grave infestazione, anche la corteccia verde dei giovani germogli. Poiché sono frequenti dentro Poiché la malattia inizia sulla pianta e si nasconde nelle ragnatele, spesso il danno diventa visibile solo quando manca già una grande quantità di massa fogliare.

Parassita del bruco Ragnatele nel bosso Possibile defogliazione completa
Importante: Controlla regolarmente il libro, soprattutto all'interno della piantaI bruchi individuati precocemente sono molto più facili da controllare rispetto a quelli che perdono le foglie più tardi.

Come riconoscere un'infestazione

  • Bene ragnatele tra foglie e germogli (spesso all'interno del bosso)
  • bruchi verdi con striscia longitudinale nera e testa scura (a seconda della fase)
  • piccolo da verdastro a scuro briciole di cacca nel web o sotto di esso
  • le foglie vengono mangiate (alimentazione a velo), in seguito si nota una notevole mancanza di massa fogliare.
  • macchie marroni e un aspetto "scavato", che a volte si estende fino al defogliazione
Suggerimento della Guardia Verde: Allargate il bosso e guardate all'interno con la mano o con una piccola lampada: ragnatele ed escrementi sono spesso l'indizio più rapido.

Quali piante sono colpite?

  • Bosso (Buxus) – praticamente tutte le varietà
  • Raro: piante ornamentali strettamente correlate (varia a seconda della regione), l'attenzione è solitamente rivolta chiaramente al bosso.

Perché si verifica l'infestazione?

  • Immigrazione/diffusione delle farfalle nell'area circostante
  • Siepi di bosso fitte: i bruchi sono ben protetti e difficili da vedere.
  • Clima mite: periodi di attività più lunghi, possibili più fasi di sviluppo
  • Mancanza di ispezioni regolari: le infestazioni restano inosservate per troppo tempo.

Cosa fare in caso di infestazione? (naturale e sensato)

1. Rimuovere meccanicamente bruchi e ragnatele

  • Separare il bosso, raccogliere/pettinare i bruchi e le ragnatele.
  • Tagliare i germogli gravemente colpiti (se possibile)
  • Smaltire il materiale raccolto in modo sicuro (in un contenitore sigillato).

2. "Aprire" l'impianto e facilitarne il controllo

  • Per siepi molto fitte: diradarle moderatamente per consentire alla luce e all'aria di entrare.
  • Controllare regolarmente, soprattutto dopo periodi caldi

3. Mantenere stabile il bosso

  • Annaffiare in modo uniforme, evitare lo stress da siccità
  • Dopo un'alimentazione abbondante: cura delicata e consentire il recupero
  • Non concimare eccessivamente "alla cieca": concimare moderatamente e in base alle necessità.

Predatori naturali e protezione in giardino

Un giardino naturale con struttura (siepi, piante perenni, piante fiorite, rifugi) può Uccelli e insetti utili promuovere. In pratica, tuttavia, la falena del bosso ha quasi sempre un approccio attivo Importante: il monitoraggio regolare e la riduzione meccanica sono gli elementi più importanti per tenere sotto controllo l'infestazione.

Perché un mix ha senso: Se si raccolgono per tempo, si "apre" un po' la siepe e si cura adeguatamente il bosso, la pressione dell'infestazione diminuisce e i danni conseguenti si riducono notevolmente.

FAQ sulla falena del bosso

Perché l'interno del mio bosso sta diventando marrone?

I bruchi spesso mangiano per primi dentro La pianta è protetta da ragnatele. Inizialmente il bosso appare verde all'esterno, ma all'interno è privo di foglie.

Come faccio a sapere se si tratta davvero di falene del bosso?

Tipici sono ragnatele, briciole di cacca e bruchi a strisce verdi e nere. La colorazione marrone puro senza ragnatele può avere anche altre cause (ad esempio, stress da siccità).

Devo tagliare i germogli colpiti?

Se i germogli sono fortemente infestati o già spogli, la potatura può aiutare a migliorare il controllo e ad alleviare lo stress sulla pianta. È importante continuare a monitorare anche in seguito.

Come posso evitarlo?

Controllare regolarmente gli interni, soprattutto durante i periodi caldi. Diradare moderatamente le siepi più fitte, prendersi cura delle siepi di bosso e intervenire tempestivamente non appena si notano ragnatele o escrementi.

Panoramica rapida

  • Parassita: falena del bosso
  • Zona: Bosso (siepi, sfere, bordure)
  • Segnali: Ragnatele, escrementi, bruchi, defogliazione
  • Chiave: Controlla in anticipo + ritira + dirada
✓ Controlla all'interno

Segni tipici

  • ragnatele tra le foglie
  • Palline fecali all'interno
  • bruchi a strisce verdi e nere
  • Marciume delle finestre fino alla completa defogliazione

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