Gilletteella cooleyi (Gillette, 1907)

on Picea, primary hostplant

Gilletteella cooleyi: gall on Picea sitchensis

Picea sitchensis, France, dép. Corrèze, Peyrelevade, 800 m, 14.vii.2020 © Catherine Reymonet

Picea sitchensis, Heerde, de Dellen, 29.x.2011 © Arnold Grosscurt

old gall, cut longitudinally

gall

The gall is elongated, curved, and the needles are not strongly shortened.

host plants

Pinaceae, monophagous

Picea abies, alcoquiana, engelmannii, mariana, orientalis, pungens, sitchensis.

on Pseudotsuga, secondary host plant

Gilletteella cooleyi on Pseudotsuga menziesii

Pseudotsuga menziesii, France, dép. Yvelines, Moisson, 2.vi.2018 © Pierre Duhem

Pseudotsuga menziesii, Boswachterij Nunspeet © Hans Jonkman

Pseudotsuga menziesii, Loenen (gld) © Arnold Grosscurt: feeding damage

wax-covered female with eggs

Pseudotsuga menziesii, Landgoed Tongeren © Hans Jonkman: old feeding damage

Gilletteella cooleyi damage to Pseudotsuga menziesii

detail

host plants

Pinceae, monofaag

Pseudotsuga menziesii.

synonyms

Adelges cooleyi.

notes

Originally a species from North America. When in Europe Picea species are not present the species can live permanently, asexually, and without inducing galls, on douglas fir.

references

Albrecht (2017a), Barbagallo, Binazzi, Pennacchio & Pollini (2011a), Béguinot (2006a,b, 2007b), Bellmann (2012a), Börner & Franz (1956a), Buhr (1965a), Carter (1971a), Chinery (2011a), Covassi & Binazzi (1981a), Cumming (1959a), Dauphin & Aniotsbehere (1997a), Görür, Işik, Akyürek & Zeybekoğlu (2009a), Hellrigl (2004a), Kollár (2007a, 2011a), Lambinon, Carbonnelle & Claerebout (2015a), Lambinon & Schneider (2004a), Lampel & Meier (2003a), Redfern & Shirley (2011a), Ripka, Reider & Szalay-Marzsó (1998a), Roskam (2009a), Schneider (2016a), Soria, Carrascal & del Estal (1996a), Wojciechowski, Depa, Halgoš ao (2016a).