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Stunting of southern pine seedlings by a needle nematode (Longidorus sp.)Author(s): M.M. Cram; S.W. Fraedrich; J. Fields
Source: In: Riley L.E., Dumroese R.K., Landis T.D., technical coordinators. National Proceedings: Forest and Conservation Nursery Associations—2002. Ogden, UT: USDA Forest Service, Rocky Mountain Research Station. Proceedings RMRS-P-28: 26–30. Available at: http://www.fcnanet.org/proceedings/ 2002/cram.pdf
Publication Series: Miscellaneous Publication
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DescriptionAn undescribed needle nematode (Longidorus sp.) was consistently associated with stunted loblolly pine seedlings at the Flint River Nursery in south Georgia. Seedlings in affected areas had root systems that were greatly reduced in size, and lacked lateral and fine roots. In a growth chamber experiment, the needle nematode significantly reduced the size of loblolly pine root systems in containers initially infested with 100 and 200 nematodes. Populations of the needle nematode increased in all containers during the course of the experiment. Slash and longleaf pines have also been found to be hosts for the needle nematode. Cover crops typically used at the nursery, including sorghum, wheat and rye, were not found to be hosts. Yellow nutsedge was also not a host. A survey conducted in pine seed orchards that border the nursery indicated that 37% of the soil samples were positive for the needle nematode. The nematode was not found in redcedar windrows, an oak seed orchard, and pine stands adjacent to the nursery.
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CitationCram, M.M.; Fraedrich, S.W.; Fields, J. 2003. Stunting of southern pine seedlings by a needle nematode (Longidorus sp.). In: Riley L.E., Dumroese R.K., Landis T.D., technical coordinators. National Proceedings: Forest and Conservation Nursery Associations—2002. Ogden, UT: USDA Forest Service, Rocky Mountain Research Station. Proceedings RMRS-P-28: 26–30. Available at: http://www.fcnanet.org/proceedings/ 2002/cram.pdf
KeywordsPinus taeda, Pinus elliottii, Pinus palustris, fumigation, seedling stunting
- Biology and management of Longidorus americanus in a southern USA nursery
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- Management Options for Control of a Stunt and Needle Nematode in Southern Forest Nurseries
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