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Data from an experiment to determine the efficacy of various methods of eradicating buckthorn, an invasive woody shrub. Buckthorn plants were chopped down and the stumps treated with various concentrations of glyphosate. The next season, researchers returned to see whether the plant had regrown.

Format

A data frame with 165 observations on the following 3 variables.

shoots

number of new shoots coming from stump

conc

concentration of glyphosate applied

dead

weather the stump was considered dead

Source

David Dornbos, Calvin College

Examples


data(Buckthorn)
#> Warning: data set ‘Buckthorn’ not found