Contarinia fagi Rübsaamen, 1921
on Fagus
Fagus sylvatica, Dronten, 3.vii.2021 © Arnold Grosscurt: galled leaves
larvae
Fagus sylvatica, Belgium, prov. Antwerp, Meerhout, 29.vi.2021 © Carina Van Steenwinkel
another example of a malformed young leaf
larvae
mouth cone and tip of the spatula
spatula and adjacent papillae
gall
The yellowish white, jumping larvae live in the breaking buds. The young leaves become totally disfigured and the shoot may die off, initiating the development of new lateral shoots. Buds may also fail to break, and dry out. Multivoltine, pupation and hibernation in the soil.
host plants
Fagaceae
Fagus sylvatica.
larva
spatula with papillae (from Möhn, 1955a)
notes
Harmful in nurseries. Especially numerous in cut hedges, because regularly new opening buds become available.
inquilines
references
Barnes (1951a), Buhr (1964b), Burton, Carbonnelle, Ellis & Schneider (2019a), Dauphin & Aniotsbehere (1997a), Gagné (2010a), de Goffau & Nijveldt (2005a), Möhn (1955a), Redfern &a Shirley (2011a), Roskam & Carbonnelle (2015a), Rübsaamen (1921a), Simova-Tošić, Skuhravá & Skuhravý (2004a), Skrzypczyńska (2007a), Skuhravá & Skuhravý (1988a, 1992b, 1997a, 1999a,b, 2005c, 2010a, 2021a: 106), Skuhravá, Skuhravý, Dauphin & Coutin (2005a), Skuhravá, Skuhravý, Dončev & Dimitrova (1991a, 1992a), Skuhravá, Skuhravý & Jørgensen (2006a), Skuhravá, Skuhravý & Meyer (2014a), Skuhravá, Skuhravý & Neacsu (1972a), Skuhravá, Skuhravý, Skrzypczyńska & Szadziewski (2008a).