INVASIVE SPECIES CONTROL PLAN PREPARATION, PERMITTING AND IMPLEMENTATION
Modern Landfill, Inc.
Lewiston, New York
(716) 773-6872 x203
A 12-acre Mitigation Wetland was in jeopardy of not meeting its invasive species coverage requirements included in the U.S. Army Corps of Engineers (USACE) Section 404 permit for that project.
DE was retained to develop an invasive species control plan, obtain the necessary Corps and NYSDEC permits, procure materials, and oversee the field effort. The plan included a combination of biological and chemical control methods for purple loosestrife, common reed, and reed canary grass.
The annual control effort consisted of first releasing purple loosestrife defoliating beetles (Galerucella calmariensis), followed by two rounds of selective herbicide spot spraying of the target invasive species. The selected herbicide spraying technique did not harm the beneficial native wetland plant species and it was scheduled to occur after adult beetle feeding/reproduction activity, and before the production of seeds. The required authorization for the control program included a NYSDEC Aquatic Pesticide permit. The beetles were observed to reoccur on the site in subsequent years, which combined with the annual herbicide spraying has prevented the invasive species from increasing in coverage to the satisfaction of the USACE.