Bedeguar Gall by GiMi53
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Description
The Rose bedeguar gall, Robin's pincushion gall, or Moss gall[1][2] develops as a chemically induced distortion of an unopened leaf axillary or terminal buds mostly on Field Rose (Rosa arvensis) or Dog rose (Rosa canina) shrubs, caused by the parthenogenetic hymenopteran gall wasp (Diplolepis rosae (Linnaeus, 1758)), previous synonyms are D. bedeguaris, Rhodites rosae or Cynips rosae.
Diplolepis lay up to sixty eggs within each leaf buds using their ovipositor. The asexual wasp emerges in spring; less than one percent are males.
The bedeguar gall is surrounded by a dense mass of sticky branched filaments. This structure gives the appearance of a ball of moss and its filaments are often brightly coloured, being at their best in around September; starting off green and then passing through pink and crimson to reddish brown. A large specimen can be up to 10 cm in width. The larvae develop and then over winter as pupae in the now brown and dry looking structure, emerging in May. The unilarval chambers are set in a woody core which persists after the filaments have worn off.
Le Cynips du rosier (Diplolepis rosae) est un minuscule insecte de l'ordre des hyménoptères qui pond ses œufs dans les tissus des rosiers cultivés mais aussi dans les tissus des églantiers sauvages provoquant la formation de galles appelées « bédégars » ou « barbe de Saint-Pierre ».
Thank you very much for your comments on my previous upload :
"Light explosion"
"Light explosion"
Comments (17)
Hendesse
Wonderful light and color. Fantastic shot, Michel. A very beautiful impression of autumn.
junge1
Fantastic detail and hues!
jayfar
A very interesting and perfect shot of something I have never seen or heard of before.
PatGoltz
Thank you for the explanation of this structure! Very well composed picture, caught at the right point, for color.
0rest4wicked
Great color and clarity!
Feliciti
excellent and clear capture !! never seen this details before !!beautiful with sunshine and this colortones !!
angora
fantastic!!! love it!
MrsRatbag
So much to see and learn...beautiful capture!
netot
Beautiful and educational!
Isabelle711
Excellent capture. :))))) Excellent info also. :)))) This is very new to me. :)))))) I love learning from the best of teachers. :)))) Thank you. :)))))) Amazing details you have captured. :))))))) Love the pretty berries. :))))) Thank you for sharing my friend. :))))))) Carry A Smile In Your Heart :)))))
whaleman
Interesting shot!
fallen21
Amazing capture!
marybelgium
splendide !
GiMi53
Thank you for your comments; my next upload :
"Ruddy Turnstone"
bebert
c'est déroutant quand on ne connait pas la chose :)
Blush
So neat looking Your image and Andrea's are going side by side as favs of mine...... Yours is just a lil bit on the little side............. Where do you all know how to look for these things...LOL Def a fav.......and hope you come see my new one Hugs Susan~
danapommet
Super information and a wonderful detailed photo.