Biocontrol programs use an invasive plant's natural enemies (insects and pathogens) to reduce its population. Most biocontrol programs combine many different enemies. Some combinations of enemy species can actually end up competing or interfering with each other, instead of attacking the weed.
Fuente : http://www.eurekalert.org/pub_releases/2013-04/uob...
Fuente : http://www.eurekalert.org/pub_releases/2013-04/uob...