Parthenolecanium fletcheri (Cockerell, 1893)

Fletcher scale, arborvitae soft scale

on Cupressaceae, Taxaceae

Parthenolecanium fletcheri: female on Taxus baccata

Taxus baccata © Lorraine Graney, Bartlett Tree Experts, Bugwood.org; female scale

Parthenolecanium fletcheri: female on Taxus baccata

egg mass under the female

parasite

Post-reproductive females oval, somewhat extended at both extremities, strongly convex, almost hemispherical, yellowish-brown to dark brown; up to 3.5 mm long and
3 mm wide. Young female scales sometimes with a conspicuous pale length stripe.

host plants

Cupressaceae, Taxaceae, narrowly polyphagous

Cupressus; Juniperus; Taxus baccata; Thuja occidentalis; Tsuga canadensis.

Mainly on Taxus and Thuja.

references

Hoover (2006a), Jansen (1999b), Kozár, Guignard, Bachmann ao (1994a), Łagowska, Golan, Kot ao (2015a), Malumphy, Eyre & Cannon (2011a), Malumphy, Ostrauskas & Pye (2008a, 2010a), Schmutterer & Hoffmann (2003a), Seljak (2010a).

mod 22.xii.2018