Project: 2005-02. Report - Field Guide to symptoms of Nectria fuckeliana cankers

Date: 2007

Author: Margaret Dick

Publication: Field guide

Project reference: 2005-02

Full report is available from:
Ensis
Private Bag 3020
Rotorua

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Executive summary:

Stem malformation, typically developing after pruning, has become a problem in some Pinus radiata plantations in part of the South Island of New Zealand over the last 10 years. Infection through the pruned branch stub may result in extensive stain and decay within the stem, although tree crowns remain green and healthy.

Nectria fuckeliana, a Northern Hemisphere fungus which is commonly recorded there as a saprophyte or weak pathogen of species of Picea and Abies, is the most commonly isolated fungus from affected trees. Nectria fuckeliana had not been

recorded in New Zealand prior to 1996, although it may have been present for some years prior to that date.

Research into management of the disease is on–going, and for up to date advice and recommended strategies contact David Thode at PF Olsen.

Full report is available from:

Ensis
Private Bag 3020
Rotorua