Canadian Journal of Forest Research - Revue Canadienne de Recherche Forestière (2010) 40, 212-223

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Kevin J. Dodds, Peter de Groot and David A. Orwig (2010)
The impact of Sirex noctilio in Pinus resinosa and Pinus sylvestris stands in New York and Ontario
Canadian Journal of Forest Research - Revue Canadienne de Recherche Forestière 40 (2), 212-223
Abstract: Sirex noctilio Fabricius has a long history as an invasive insect species in pine plantations throughout the Southern Hemisphere and has been recently discovered in North America, where it is uncertain how this insect will behave in pine ecosystems. To assess the impact and attack behavior of S. noctilio, forest surveys and measurements from attacked and unattacked trees were taken in nine Pinus resinosa Ait. and Pinus sylvestris L. plantations in New York, USA, and Ontario, Canada. There was a trend of S. noctilio attacking suppressed trees with smaller live crowns and reduced growth. Some S. noctilio attacks were also found in dominant crown classes but at a lower rate than overtopped or intermediate classes. Sirex noctilio appeared to have more of an impact in P. sylvestris forests, as they attacked more stems (9%-18%) and higher basal area (1.6-5.5 m2/ha) than P. resinosa stands (3%-8% of stems and 0.4-2.4 m2/ha). Dead trees with signs of Siricidae and dead from other causes were also quantified, and in some P. resinosa stands, levels were greater in magnitude than S. noctilio losses. Data from this study suggest that silvicultural treatments should be a key component of integrated pest management plans for S. noctilio.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Kevin J. Dodds, Peter de Groot

Research topic(s) for pests/diseases/weeds:
damage/losses/economics


Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.


Sirex noctilio Pine (Pinus) Canada (east)
Sirex noctilio Pine (Pinus) U.S.A. (NE)