Rose Sawfly | JuzaPhoto

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Bruchi View gallery (2 photos)

Rose Sawfly sent on December 01, 2013 (21:16) by Massimo Guerrini. 7 comments, 1614 views.

, 1/5 f/16.0, ISO 400, tripod. Parco San Rossore Massaciuccoli, Italy.

Bruco di Arge pagana, piccolo imenottero che infesta la pianta della rosa. Le larve sono defogliatrici e provocano erosioni totali del lembo della foglia. Nello stadio larvale, questo imenottero tende ad avere un comportamento gregario ed in caso di forti infestazioni il danno provocato alla pianta può essere anche grave. Le femmine adulte non sono da meno ed anch'esso provocano danni alla pianta a causa del loro tipico modo di deporre le uova. Infatti, all'atto della deposizione, le femmine praticano delle incisioni lungo i giovani rametti erbacei dentro i quali depositano le uova disposte in file sovrapposte. Queste incisioni sono ben evidenti perché i tessuti necrotizzano originando delle fessure profonde e longitudinali. Spesso la reazione della pianta è così grave che la necrosi si estende e fa disseccare il rametto. #Hymenoptera

9 persons like it: Barbara76, Cristian Arghius, Euro, Fabio Pavan, Massimo Menzaghi, Michela Checchetto, Mondiweb - Diego Mondini, Roberto1977, Scorpi1972

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Massimo Menzaghi

sent on December 02, 2013 (0:49)

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se vuoi, #Hymenoptera
qui info e approfondimenti ;-)

if you want, # Hymenoptera
here info and insights ;-)

Massimo Guerrini

sent on December 02, 2013 (9:33)

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Massimo , ho aggiunto il tag alla descrizione.
Grazie mille.

Ciao,
Massimo.

Max , I added the tag to the description.
Thank you very much.

Hello,
Maximus.

Massimo Menzaghi

sent on December 02, 2013 (13:18)

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grazie a te: io ho solo lanciato il sasso, la "creatura" sarà di tutti quelli che la fanno crescere! ;-)

thank you: I've only thrown the stone, the "creature" will of all those who make it grow! ;-)

Pigi47

sent on December 02, 2013 (15:22)

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Non male anche se i neri mi sembrano troppo chiusi.
A mio gusto, ma solo a mio gusto desaturerei un pelo il giallo per far risaltare meglio la texture della foglia.

Not bad, even if the blacks seem too close.
To my taste, but to my taste desaturerei a yellow coat to bring out the best texture of the leaf.

Massimo Guerrini

sent on December 03, 2013 (9:14)

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Pigi , grazie del passaggio e del suggerimento. Ne terro' di conto.
Grazie ancora.

Un saluto,
Massimo.

Pigi , and with the passage of the tip. I'll keep 'account.
Thank you again.

All the best,
Maximus.

Scorpi1972

sent on December 03, 2013 (15:03)

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Bella per compo, dettaglio e cromie.. Sorriso

Con i buoni suggerimenti di Pigi di sicuro si può solo migliorare.. ;-)

Ciao, Carmelo.

Beautiful for components, detail and colors .. :-) With good suggestions of Pigi for sure you can only get better .. ;-)
Hello, Carmel.

Massimo Guerrini

sent on December 04, 2013 (9:30)

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Carmelo grazie mille della visita.

Ciao,
Massimo.

Carmel thank you very much for the visit.

Hello,
Maximus.

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