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    Author(s): T. Dubey; S. L. Stephenson; P. J. Edwards
    Date: 1995
    Source: In: Gottschalk, Kurt W.; Fosbroke, Sandra L. C., ed. Proceedings, 10th Central Hardwood Forest Conference; 1995 March 5-8; Morgantown, WV.: Gen. Tech. Rep. NE-197. Radnor, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 421-429
    Publication Series: General Technical Report (GTR)
    Station: Northeastern Research Station
    PDF: View PDF  (1.17 MB)

    Description

    Dimilin was applied to two watersheds on the Fernow Experimental Forest on May 16,1992, as part of a study to evaluate its effect on non-target organisms. Data were obtained on the occurrence, conidial production, and leaf litter colonization of aquatic hyphomycetes 5 days prior to and 2, 10, 25, and 55 days following application in the two treated watersheds and two control watersheds. Two days after application, conidial numbers were higher in one treated watershed, while they remained relatively constant in the other treated watershed. Northern red oak (Quercus rubra L.) and sugar maple (Acer saccharum Marsh.) leaf bags placed in the weir ponds and streams of the treated watersheds prior to Dimilin application and retrieved 2 days after application were colonized by greater numbers of fungal taxa than bags retrieved later. This pattern suggests the possibility of an increasing influence of this pesticide on the occurrence and the litter decomposition activities of this group of aquatic fungi.

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    Citation

    Dubey, T.; Stephenson, S. L.; Edwards, P. J. 1995. Dimilin effects on leaf-decomposing aquatic fungi on the Fernow Experimental Forest, West Virginia. In: Gottschalk, Kurt W.; Fosbroke, Sandra L. C., ed. Proceedings, 10th Central Hardwood Forest Conference; 1995 March 5-8; Morgantown, WV.: Gen. Tech. Rep. NE-197. Radnor, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 421-429

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