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Harmonia axyridis Pallas, 1773...

Coleotteri

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Harmonia axyridis Pallas, 1773 sent on October 27, 2015 (17:25) by Enzo. 1 comments, 265 views.

, 10 sec f/32.0, ISO 100, tripod. Parco Nazionale della Majella, Italy.

Harmonia axyridis (Pallas, 1773), nota comunemente come "Coccinella arlecchino" o "Asian Lady Beetle" , è un coleottero alloctono per gli insetti italiani. Originaria del continente asiatico, a partire dal 1916, per la sua spiccata capacità predatoria a carico degli afidi delle piante, è stata via via introdotta in altre aree geografiche per contrastare con tecniche biologiche i suddetti fitofagi. Può avere le Elitre gialle, nere, rosse, gialle con macchie nere, nere con due o quattro macchie rosse, rosse con macchie nere. Mentre capo e pronoto sono neri con disegni biancastri. Si nutre di afidi, ma anche di larve di insetti utili e delle più piccole coccinelle autoctone. Diventa una calamità per i vigneti, perchè durante la vendemmia tende a rifugiarsi tra i grappoli, rilasciando una sostanza dall'odore molto sgradevole che altera il sapore e l'odore del vino stesso.



1 person like it: Bal


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sent on December 04, 2015 (18:12) | This comment has been automatically translated (show/hide original)

Bella also this: -D



Some comments may have been automatically translated with Microsoft Translator.  Microsoft Translator



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