Virtual Herbarium

of Forest Diseases

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Sirococcus conigenus Cannon & Minter (Sin: S. strobilinus Preuss)

	First symptoms are brown needles in early summer.
	Detail of dead buds with needles pointing down.
	Previous year attack has defoliated the lower third of the crown.
	In a heavy attack, defoliation can affect almost the whole crown.
	Picnidia at the basis of the needle bundle.
	Bundles curved down.

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This web page (http://labpatfor.udl.es/herbariovirtual/sirococcus2.html) has been created by:

Carlos Colinas
Vegetal Production and Forest Science Department
University of Lleida

Last update: November 14th, 2004.