Inkundla yaseBrazil ikhuphe umyalelo wokuba kuthintelwe ukubulala ukhula lwe-2,4-D kwiindawo ezibalulekileyo zewayini kunye neapile emazantsi.

Inkundla emazantsi eBrazil isandula ukuyalela ukuba kuvalwe ngoko nangoko i-2,4-D, enye yezona zisetyenziswa kakhuluizibulali-zinambuzaneehlabathini, kummandla waseCampanha Gaucha emazantsi elizwe. Lo mmandla usisiseko esibalulekileyo semveliso yeewayini ezintle kunye nama-apile eBrazil.

Esi sigwebo senziwe ekuqaleni kukaSeptemba ngenxa yesimangalo soluntu esifakwe yintlangano yabalimi basekuhlaleni. Intlangano yabalimi ithi le khemikhali yenze umonakalo kwizidiliya nakwiigadi zama-apile ngenxa yokusasazeka kwe-agent. Ngokwesigwebo, i-2,4-D ayizukusetyenziswa naphi na kwindawo yaseCampanha Gaucha. Kwezinye iindawo zaseRio Grande do Sul, akuvumelekanga ukutshiza le herbicide ngaphakathi kweemitha ezingama-50 ukusuka kwiidiliya nakwiigadi zama-apile. Esi sithintelo siya kuhlala sisebenza de urhulumente welizwe amisele inkqubo epheleleyo yokubeka esweni kunye nokunyanzeliswa komthetho, kubandakanya ukuseta iindawo ezingasetyenziswa kwiindawo ezinobungozi obukhulu.

Amagunya asekuhlaleni anikwe iintsuku ezili-120 zokusebenzisa le nkqubo intsha. Ukungathobeli kuya kubangela isohlwayo semihla ngemihla se-10,000 reais (malunga ne-2,000 yeedola zaseMelika), esiza kudluliselwa kwingxowa-mali yembuyekezo yendalo yelizwe. Esi sigqibo sikwafuna ukuba urhulumente abhengeze ngokubanzi esi sithintelo kubalimi, abathengisi beekhemikhali zezolimo kunye noluntu.

I-2,4-D (2, 4-dichlorophenoxyacetic acid) isetyenziswa kakhulu ukususela ngeminyaka yoo-1940, ikakhulu kwiintsimi zesoya, ingqolowa kunye nombona. Nangona kunjalo, ukuguquguquka kwayo kunye nokuthambekela kwayo kokukhukhuleka kwiindawo ezikufutshane kwenze ukuba ibe yindawo ephambili yempikiswano phakathi kwabalimi bengqolowa kunye nabavelisi beziqhamo kumazantsi eBrazil. Iidiliya kunye negadi yama-apile zinovelwano kakhulu kule nto yekhemikhali. Nokuba ukukhukhuleka okuncinci kunokuchaphazela kakhulu umgangatho weziqhamo, kubangele iziphumo ezinkulu kwezoqoqosho kumashishini okuthumela iwayini kunye neziqhamo kwamanye amazwe. Abalimi bakholelwa ukuba ngaphandle kokubekwa esweni okungqongqo, isivuno sonke siya kuba semngciphekweni.

Ayikokokuqala ukuba iRio Grande do Sul ixabane nge-2,4-D. Amagunya asekuhlaleni aye amisa ukusetyenziswa kwesi sibulali-zinambuzane ngaphambili, kodwa le yenye yemida engqongqo esetyenziswayo eBrazil ukuza kuthi ga ngoku. Iingcali zezolimo zithi ityala lezomthetho lingaba ngumzekelo wokulawulwa kwezibulali-zinambuzane okungqongqo kwamanye amazwe aseBrazil, ligxininisa ukungqubana phakathi kweemodeli ezahlukeneyo zezolimo: ukulima iinkozo ngamandla aphezulu kunye namashishini eziqhamo newayini axhomekeke kumgangatho wemveliso kunye nokhuseleko lokusingqongileyo.

Nangona isigqibo sisenokubhenelwa, umyalelo we-2,4-D uza kuhlala usebenza de kwenziwe ezinye izigqibo yiNkundla ePhakamileyo.