Ammophila was controlled through repeated digging/pulling, using a shovel to
loosen or cut rhizomes below the surface (Fig. 10.5). Labor was provided by the
California Conservation Corps, a state agency that provides a consistent labor
source complete with crew supervisors and transportation. Digging commenced in
February when carbohydrate reserves were low (plants had not yet broken dormancy), and continued through December. The greatest effort was required on the
first dig, steeply diminishing thereafter. For the Lanphere project, treatments were
applied over two growing seasons, with an average of eight treatments in the first
Fig. 10.3 Evolution of dune features at the Lanphere and Ma-le’l Dunes between 1939 and
1988. The A. arenaria invaded between 1965 and 1988, and was the dominant vegetation within
the polygon in 1988
10 Dune Restoration Over Two Decades at the Lanphere and Ma-le’l Dunes
163
loosen or cut rhizomes below the surface (Fig. 10.5). Labor was provided by the
California Conservation Corps, a state agency that provides a consistent labor
source complete with crew supervisors and transportation. Digging commenced in
February when carbohydrate reserves were low (plants had not yet broken dormancy), and continued through December. The greatest effort was required on the
first dig, steeply diminishing thereafter. For the Lanphere project, treatments were
applied over two growing seasons, with an average of eight treatments in the first
Fig. 10.3 Evolution of dune features at the Lanphere and Ma-le’l Dunes between 1939 and
1988. The A. arenaria invaded between 1965 and 1988, and was the dominant vegetation within
the polygon in 1988
10 Dune Restoration Over Two Decades at the Lanphere and Ma-le’l Dunes
163