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Spruce Budworm Detection in North Dakota Shelterbelts and Nurseries With a Syntetic Sex Attractant

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dc.contributor.author Tagestad, A. D.
dc.rights North Dakota State University en_US
dc.title Spruce Budworm Detection in North Dakota Shelterbelts and Nurseries With a Syntetic Sex Attractant en_US
dc.type Article en_US
dc.source North Dakota Farm Research: Vol. 33, No. 02, pp. 17-19 en_US
dc.description The spruce budworm, Choristoneura fumiferana IClemens) ILepidoptera: Tortricidae), is one of the most damaging insects of eastern forests. Its host range includes balsam fir and various species of spruce, and it sometimes feeds on larch and pine. Although primarily a forest pest, it also occurs in the eastern prairie provinces of Canada and south into North Dakota. Because the spruce budworm is a threat to spruce in North Dakota, a detection method to monitor its occurrence and population trends is needed. Sex attractants have not only proved efficient for detection and population monitoring, but may also offer an alternative to pesticides for control. Weatherston et al identified trans-11-tetradecenal as a major component of the sex pheromone of C. fumiferana. In 1973, traps baited with this sex attractant were field tested to evaluate its effectiveness for detection of spruce budworm moths in plantings with little or no apparent damage. Four of the five nurseries sampled produce large blue spruce stock for landscaping, park plantings and highway beautification. Movement of infested nursery trees to new locations no doubt contributes to the spread of the insect. A statewide detection survey on a regular basis would show population trends and range. If populations were to rise, the survey could provide correlations between severity of damage and moth numbers.
dc.date.accessioned 2010-06-23T14:48:36Z
dc.date.available 2010-06-23T14:48:36Z
dc.date.issued 2010-06-23
dc.identifier.uri http://hdl.handle.net/10365/9734
dc.date 1975 en_US
dc.subject Pest control en_US
dc.subject Trees en_US
dc.subject Plant diseases and disorders en_US
dc.subject Insect pests en_US
dc.subject Shelterbelts en_US

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