Biological - Because ragweed grows best on disturbed soils,
the best way to prevent its spread is to keep idle land covered
with grasses or other harmless plants.
Mechanical - For small areas of infestation, pulling the
plant or cutting the plant low, near the roots, is recommended
(see recognizing the ragweed plant).
This should be done prior to August 1st to prevent pollination
and seed formation, and the next generation of plants.
Chemical - For larger areas, there are a variety of herbicides
that can do the job more efficiently than by mechanical means.
These products can be found in your nearest lawn and garden center.
Follow all manufacturer instructions and safety procedures.
