In one study, vetiver grass was reported to enhance the removal of เอนโดซัลแฟน from soil at acotton farm in Burkina Faso. Three months after treatment, planted soils contained less เอนโดซัลแฟน residues than unplanted soils. The half-life of เอนโดซัลแฟน was higher in unplanted soils compared to the ไรโซสเฟียร์ of vetiver. The authors attributed this to the possibly higner number of เอนโดซัลแฟน degraders in planted soils.