Ama-Pyrethroids ayikilasi lamakhemikhali asetshenziswa emapulazini nasezingadini ukuze axoshe izimbungulu. La makhemikhali aphakathi kwalawo asetshenziswa kakhulu emhlabeni wonke futhi asiza abalimi ukuthi balondoloze izilimo zabo. Ukunikezwa kokudla okuningi kungaba nomthelela ngaphandle kwalezi zibulala-zinambuzane ezinenzuzo ngoba izinambuzane eziningi zingadala umonakalo ezitshalweni eziningi.
Indlela Esebenza Ngayo: Ama-pyrethroids asebenza ngokuphazamisa isimiso sezinzwa sezinambuzane. Empeleni, lezi zinambuzane zakhelwe ukubulala ezinye izimbungulu (omiyane, izimpukane nezintuthwane njengesibonelo). Zivame ukusetshenziswa abanikazi bezindlu nabalimi esikhundleni sezibulala-zinambuzane ezinamandla, eziyingozi kakhulu ngoba aziyona ingozi kubantu noma ezifuyweni. Lesi ngesinye sezizathu eziyinhloko zokuthi ama-pyrethroids akhethwe ukuze asetshenziswe ekulawuleni izinambuzane zasekhaya nasengadini.
Ama-pyrethroids asekelwe kwisithako semvelo esibizwa ngokuthi i-pyrethrum. I-Pyrethrum isuselwa ezimbalini ezinhle zama-chrysanthemums, osekungamakhulu eminyaka zisetshenziswa ukulawula izinambuzane. Abantu bayayenza (ngomzamo owengeziwe) ngokulungisa ukwakheka kwayo kanjalo, okuholela kuma-synthetic pyrethroids asetshenziswa manje ezitshalweni. Lokho kubenza balungele ukufafaza izitshalo ukuvimbela izimbungulu futhi ugcine yonke into inempilo.
Nakuba i-pyrethroids ingenabungozi kubantu nasezilwaneni, ingaba yingozi emvelweni uma ingasetshenziswa kahle. Ungalinge uwafake la makhemikhali emifuleni noma emachibini ngoba azobulala izinhlanzi nezinye izilwane ezihlala emanzini. Ngakho-ke, abalimi nabalimi kufanele baqaphele ekusebenziseni ama-pyrethroids mayelana nemiyalelo yabo. Ngaleyo ndlela, bangaqinisekisa ukuthi ngenkathi kuthengwa amakhemikhali anjalo kwenziwa ngokuphepha futhi ngesikhathi esifanayo kunikeza ukuvikeleka okuphelele ku-ecosystem.
Namuhla, zibalulekile emisebenzini yesimanje yokulima ngoba ama-pyrethroids asiza abalimi ukuthi babulale izimbungulu ngokushesha ngaphandle kokusebenzisa amakhemikhali ayingozi kakhulu. Uma zisetshenziswe ngendlela efanele, zingasiza ekusizeni abalimi ukuthi bakhiqize izitshalo ezinempilo ezizophumela ekudleni okwengeziwe kanye nenzuzo engcono. Ikakhulukazi, njengoba inani labantu emhlabeni likhula futhi lidinga ukudla.
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