NDLI: Distribution of Swiss needle cast in New Zealand in relation to winter temperature

Content Provider	Springer Nature Link
Author	Stone, J. K. Hood, I. A. Watt, M. S. Kerrigan, J. L.
Copyright Year	2007
Abstract	Phaeocryptopus gaeumannii, the causal agent of Swiss needle cast disease, is widely distributed throughout New Zealand, where the disease may cause significant growth losses in Douglas-fir (Pseudotsuga menziesii) plantations. In western Oregon, where the pathogen is native, pathogen abundance and disease severity are correlated with mean daily winter temperatures and spring moisture, enabling the development of climate-based disease prediction models. The distribution of P. gaeumannii and severity of Swiss needle cast was surveyed in 16 Douglas-fir plantations throughout NewZealand in 2005. Retention of foliagewas assessed in the field and samples of 1- and 2-year-old needleswere collected for assessment of P. gaeumannii abundance. Foliage retention and abundance of P. gaeumannii varied across sites. Less colonisation by P. gaeumannii and greater needle retention was found in the South Island. Abundance of P. gaeumannii was found to be positively correlated with August minimum temperature and June average temperature, and showed a similar relationship to winter temperature as observed in western Oregon. These data will be used to derive a disease prediction model for Swiss needle cast in New Zealand that can be used to guide further research and provide short- and long-term disease risk predictions and cost/benefit analyses.
Starting Page	445
Ending Page	454
Page Count	10
File Format	PDF
ISSN	08153191
Journal	Australasian Plant Pathology
Volume Number	36
Issue Number	5
e-ISSN	14486032
Language	English
Publisher	Springer Netherlands
Publisher Date	2007-01-01
Publisher Institution	Australasian Plant Pathology Society
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Plant Pathology Plant Sciences Agriculture Entomology Ecology
Content Type	Text
Resource Type	Article
Subject	Plant Science

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