New Zealand Plant Protection 66 (2013): 235-241
Kauri dieback is a pest issue that is increasingly affecting kauri forests. A water and soilborne pathogen, Phytophthora taxon Agathis (PTA), has been identified as a causal agent of kauri dieback at multiple locations, particularly within Auckland and Northland. In 2008, a passive surveillance and adaptive management programme was initiated to manage the disease across the natural range of kauri. Surveys were initially undertaken to determine the distribution and rate of spread of kauri dieback on private land in the Auckland region. Methods to evaluate and monitor overall tree health, disease symptoms and other potential contributing factors were developed. Diagnostic sampling was undertaken to isolate and identify pathogens associated with kauri dieback. Along with PTA, other Phytophthora species and environmental stress were frequently associated with symptoms at over 400 properties inspected. Further management is now required to develop control tools and mitigate further spread.
Keywords: kauri, Agathis australis, Phytophthora, biosecurity.
 | Forest efficacy trials on phosphite for control of kauri dieback I.J. Horner, E.G. Hough and M.B. Horner (2015) New Zealand Plant Protection 68: 7-12 |
|---|---|
| Pathogenicity of four Phytophthora species on kauri: in vitro and glasshouse trials I.J. Horner and E.G. Hough (2014) New Zealand Plant Protection 67: 54-59 |
| Aerial surveillance to detect kauri dieback in New Zealand A. Jamieson, I.E. Bassett, L.M.W. Hill, S. Hill, A. Davis, N.W. Waipara, E.G. Hough and I.J. Horner (2014) New Zealand Plant Protection 67: 60-65 |
| Phosphorous acid for controlling Phytophthora taxon Agathis in kauri: glasshouse trials I.J. Horner and E.G. Hough (2013) New Zealand Plant Protection 66: 242-248 |
Copyright © 2013 New Zealand Plant Protection Society (Inc.).
Please refer to the terms of use.