Man-made aquatic systems such as reservoirs are particularly vulnerabl
e to infestations of weedy species because early in their existence th
ey typically lack aquatic vegetation of any kind. Establishment of nat
ive aquatic plants in such systems could be an important deterrent to
the spread of exotic weeds. This article describes a new Aquatic Plant
Control Research Program (APCRP) work unit to develop methods for lar
ge-scale establishment of desirable native aquatic plants in man-made
systems. The article discusses the need for work in this area. identif
ies the approach and research objectives, and describes early progress
. An example project (Lake Conroe) is briefly described.