Publications by G.R. Warren

New and updated information of scleroderris canker in the Atlantic provinces

Wed, 22 Jun 2011

This note reviews the status of the European race of Scleroderris canker (Gremmeniella abietina [Lagerb.] Morelet), an exotic pest, in the Atlantic provinces of Canada. The European race of Scleroderris canker is a disease of plant quarantine significance, and many reports have been written since it was initially recognized in New York State in 1975 and subsequently found in Quebec in 1978. The race testing methods have improved in the intervening three decades. This report clarifies the situation for regulatory authorities, the forest industry, and provincial officials in New Brunswick, Nova Scotia, Prince Edward Island, and Newfoundland. We are also reporting a breach of the quarantine zone of that disease in Newfoundland. A complete listing of isolates tested from New Brunswick and the known distribution for Newfoundland are included as tables and maps.

Outbreak of Scleroderris canker, European race, in Central Newfoundland: escape form quarantine.

Thu, 07 Jan 2010

Root and butt rots contribute to merchantable volume losses in precommercially thinned balsam fir stands

Fri, 09 Oct 2009

L’apport des pourridiés aux pertes de volumes marchand dans les peuplements de sapin baumier ayant fait l’objet d’une éclaircie précommerciale

Fri, 09 Oct 2009

A framework for poplar plantation risk assessments

Mon, 26 Sep 2005

Root and butt rots in semi-mature, pre-commercially thinned stands of balsam fir in Newfoundland

Tue, 13 Jan 2004

Status of European larch canker in Atlantic Canada 2000

Mon, 05 Nov 2001

Expansion of the European race of Gremmeniella abietina in Newfoundland, Canada

Thu, 08 Aug 2002

Sapwood deterioration of insect damaged balsam fir

Mon, 25 Nov 2002

Cross infectivity of scleroderris canker on native and exotic conifers in Newfoundland

Tue, 22 Aug 2000

Wood defect and density studies of living trees. II. Total and net volume equations for Newfoundland forest management units

Fri, 21 Jul 2000

Wood defect and density studies of living trees. III. Sawlog volume tables for Newfoundland

Fri, 21 Jul 2000