change labels in a plot in R

I am trying to add a different label to my points in a cca plot. Here it is a reproducible example:

## load vegan
require("vegan")
## load the Dune data
data(dune, dune.env)
## PCA of the Dune data
mod <- rda(dune, scale = TRUE)
## plot the PCA
plot(mod, scaling = 3)
## build the plot up via vegan methods
scl <- 3 ## scaling == 3
colvec <- c("red2", "green4", "mediumblue")
plot(mod, type = "n", scaling = scl)
with(dune.env, points(mod, display = "sites", col = colvec[Use],
                      scaling = scl, pch = 21, bg = colvec[Use]))

with(dune.env, legend("topright", legend = levels(Use), bty = "n",
                      col = colvec, pch = 21, pt.bg = colvec))
text(mod, display = "sites", scaling = scl, cex = 0.8, col = "darkcyan")

I would like to change the last row of the code: Instead of displaying "sites" (automatically it displays the row name) I would like to display another variable, for example the variable "Management". Thanks in advance.

You just need to specify the labels parameter. If the text is printed exact at the point, it makes it hard to read, so I also added pos=3 to make the text appear slightly above the points.

text(mod, labels=dune.env$Management, pos=3, scaling=scl, cex=0.8, col="darkcyan")