Hoʻohana pinepine ʻia ʻo Diquat ma ke ʻano he conductive contact pepehi bioherbicide.Hiki ke komo koke ʻia e nā ʻiʻo mea kanu ʻōmaʻomaʻo a nalowale ka hana ma hope koke o ka pili ʻana me ka lepo.Hoʻohana ʻia ia no ka weu ʻana ma nā mahina ʻai, nā māla ʻai, nā ʻāina mahi ʻole, a ma mua o ka ʻohi ʻana.Hiki ke hoʻohana ʻia e like me ka maloʻo o nā kumu a me nā lau o ka ʻuala a me ka ʻuala.Ma nā wahi i koʻikoʻi ka mauʻu gramineous, ʻoi aku ka maikaʻi o ka hoʻohana pū ʻana i ka paraquat.