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    Author(s): Prabudhda Dahal Dahal; Hal O. Liechty; Bryan Rupar; Conner Fristoe; Eric Heitzman
    Date: 2006
    Source: Gen. Tech. Rep. SRS-92. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. pp. 171-173
    Publication Series: Miscellaneous Publication
    PDF: View PDF  (235 KB)

    Description

    Tree vigor, live crown ratios, dieback, and survival of hardwood competition were monitored for 2 years following a fall application (16 ounces per acre) of imazapyr on 4 stands of loblolly pine (Pinus taeda L.) in the Gulf Coastal Plain of Louisiana and Arkansas. Assessments during the first growing season following application indicated that 87 to 98 percent of the hardwood stems were completely defoliated or had 80 percent or more crown dieback. The lowest levels of defoliation and dieback occurred in the densest stands. Typically, the crowns of the recovered hardwoods had some level of dieback, but live crown ratios of these trees were similar to those found in control areas. Differences in mortality and recovery were evident among species.

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    Citation

    Dahal, Prabudhda Dahal; Liechty, Hal O.; Rupar, Bryan; Fristoe, Conner; Heitzman, Eric 2006. Hardwood vigor and survival following applications of imazapyr in mid-rotation pine plantations. Gen. Tech. Rep. SRS-92. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. pp. 171-173

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