Occurrence of the moth Cydia pactolana is associated with the spruce canker fungus Neonectria fuckeliana

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http://hdl.handle.net/10138/298454

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Uimari , A , Heliövaara , K , Tuba , K , Poteri , M & Vuorinen , M 2018 , ' Occurrence of the moth Cydia pactolana is associated with the spruce canker fungus Neonectria fuckeliana ' , Scandinavian Journal of Forest Research , vol. 33 , no. 6 , pp. 529-534 . https://doi.org/10.1080/02827581.2018.1427791

Title: Occurrence of the moth Cydia pactolana is associated with the spruce canker fungus Neonectria fuckeliana
Author: Uimari, Anne; Heliövaara, Kari; Tuba, Katalin; Poteri, Marja; Vuorinen, Martti
Contributor: University of Helsinki, Wetland Ecology Group
Date: 2018
Language: eng
Number of pages: 6
Belongs to series: Scandinavian Journal of Forest Research
ISSN: 0282-7581
URI: http://hdl.handle.net/10138/298454
Abstract: Several young damaged Norway spruce stands in eastern and central Finland were observed from 2013 to 2016. The damage included trees with heavy resin flow, necrotic foliage, stem and branch cankers and dead trees. Pest identification resulted in the tortricid moth Cydia pactolana whose occurrence was always associated with the presence of the ascomycete pathogen Neonectria fuckeliana. Both the insect and the disease contributed to the extent of the damage, but it is not possible to say in which order they had attacked the trees. Apparently, changed climate has affected the increased occurrence of both the fungus and the moth. However, the characteristics of the insect-fungus interaction and the factors contributing to the coincidences are unknown. Emerging coexistence or potential symbiosis of the two damaging agents is a serious threat for Norway spruce cultivation. Understanding the biology of this fungus-insect interaction is important for controlling them.
Subject: Picea abies
forestry
forest damage
insects
ascomycetes
pest management
NECTRIA-FUCKELIANA
PINUS-RADIATA
PICEA-ABIES
NEW-ZEALAND
DISEASE
STEMS
4112 Forestry
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