Amanqaku nemibuzwana: Isithombe Esikhathini
Ngonyaka ezininzi, amafumatha babhekisele ukuba babone izincwadi zabo kususela izimbali nezindiki zezinhloko ezazihlabelela. Baphethe inqubomgomo yokuhlala ngokulandelayo njenge-sulfur nes-arsenic. Kodwa leso sinto esingakuhlanganisiyo asikwenza nto ngokukhangelwe. Ngendaweni ezinye, bazingabonisa izinkinga ezishiyene permethrin nazo zangena. Kungaba phambi kokunyakaleka i-1800s abasebenzisi bazaziwa amacemi ebalulekileyo okungayiphathe amabhobho kodwa asiphathe amahlaba engenakwabo glyphosate lowo lophi yindlela yokuqala yokuthuthukisa kwezintshisekelo ezizama ukufundiswa ngokupheleleyo ukuze usebenzise amaqhathanthi nokuncedzo kwezincwadi.
Ukuba Nginguvela Ukuncedza Kwamafumatha Ngezinqubomgomo Zemibuzwana Nemibuzwana
Amashinye amabili esintu ezikhulu eziphakamisile izizathu. Ngaphambi kwalokusho, babekufuneka bazisebenzise imithombo yomphilo ombili engaziqondisiyo khona. permethrine ezi zishinye amashinye amabili esintu abafundi baza kusetshenziswa ukukhubaza izimbali zakhe ezifana ngezinto ezinomsindo. Lomthwalo wakwenzela ukuba bakwazi ukuhlala ngempumelelo lokuhlola izimbali zakhe ezifana ngezinto ezinomsindo. Ngenxa yalokho, abafundi bakwazi ukwenza okubanzi kuhlu lapho bakwelanga ukuphatha.