Biocontrol of weeds Science Society Weed Research American Phytopathological Society American Society for Microbiology Montana State University Department of Plant Science Montana State University Biological Control Of Weeds. Microorganisms are already serving as weed killers.
Weeds clog waterways, destroy wildlife habitats and impede farming.
Their rampant spread eliminates grazing areas and accounts for a third of all crop losses in the world. The global need for weed answered mainly by the chemical industry. Its herbicides are often effective and necessary to agriculture. Yet some pose serious problems, particularly if they are misused. For example, toxic and otherwise harmful compounds threaten animal and public health when they accumulate in food plants and ground water.