| − | '''Defoliants''' are [[chemicals]] which cause [[plant]]s to lose their leaves artificially; often used in agricultural practices for [[weed]] control, and may have detrimental impacts on [[human]] and ecosystem [[health]]. | + | '''Defoliants''' are [[chemical]]s which cause [[plant]]s to lose their leaves artificially; often used in agricultural practices for [[weed]] control, and may have detrimental impacts on [[human]] and ecosystem [[health]]. |