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Biological Control Biological
control is the intentional introduction of natural enemies in order
to increase predation upon a particular invasive plant species. Predation
may decrease the invasive plants' competitive advantages over native
species and weaken the invader by increasing leaf mortality, decreasing
plant size, reducing flower and seed production, and/or limiting population
expansion. The approval and importation of non-native biocontrol agents
into the United States is regulated by the USDA. For additional information
on the use of biocontrol against invasive plants, please see
Section 4.4
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