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ama-pyrethrins nama-pyrethroids

Kwanele ngalezo zimbungulu ezicasulayo ezithatha indlu yakho lapho ungakulindele? Ingabe uhlezi ushaya izimpukane noma omiyane bedada? Noma mhlawumbe ungumnikazi womhlaba ofuna ukuvikela insimu yakho ezinambuzaneni ezikhubazekile ezingalimaza impilo yezitshalo zakho? Faka ama-pyrethrins nama-pyrethroids ukuze utakule! Zonke lezi yizinto ezingabulala izinambuzane futhi zinendima okufanele ziyidlale emakhaya ethu, izingadi kanye nakwezolimo ezinkulu. Sizobona ukuthi iyini le mikhiqizo, kanye nobuhle nobubi bayo… ukuthi abantu bayisebenzisa kanjani ekuphileni kwansuku zonke kungaba sekhaya noma emapulazini.

I-Pyrethrins - ephuma ezimbalini zesitshalo se-pyrethrum. Kuyisitshalo esiqhakaza esikhangayo esitholakale sinezakhi ezisebenzayo ezinezakhiwo ezisebenza njengezibulala-zinambuzane zemvelo. Ama-pyrethrins abulala izinambuzane ngokuhlasela isimiso sezinzwa zalezi zinambuzane, ezishaqisayo futhi ekugcineni ziholele ekufeni. Ama-pyrethrin anomlando omude wokusetshenziswa—ayesetshenziswa ngisho naseGibhithe lasendulo! Baziwa ngokwelashwa kwabo okusheshayo, okusebenzayo okubenza babe yisixazululo esifanelekile sezimbungulu ezidinga ukuqedwa ngokushesha.

Ama-synthetic alandela ama-pyrethrins

Kodwa, ngakolunye uhlangothi sine-pyrethroids! Ayini ama-Pyrethroids?: Ama-Pyrethrins emakethe njengoba eyisibulala-zinambuzane semvelo avame ukubhidlika ngokushesha, kuyilapho amaphiyrathroids anamakhemikhali enziwe umuntu alingisa lesi sakhiwo futhi anconywe kakhulu ukuze asetshenziswe ikakhulukazi ngaphandle. Zaqala ukudalwa ososayensi ngeminyaka yawo-1960 njengendlela eqhubekayo, engabizi kakhulu. Ama-Pyrethroids: Nakuba enza ngendlela efanayo nama-pyrethrins, kubalulekile ukuqaphela ukuthi esikhundleni sezitshalo, lezi aziveli emvelweni njengoba zingama-insecticide akhiqizwayo. Ama-pyrethroids azinzile kune-pyrethrins, okusho ukuthi abambelela kangcono lapho evezwe ekukhanyeni nasemoyeni ngokuhamba kwesikhathi - okuwenza abe inketho enhle yokulawula izinambuzane ezihlala isikhathi eside.

Ama-pyrethrins kanye nama-pyrethroids ahlobene eduze kodwa anamandla kakhulu yizinto ezinhle ngezindlela eziningi ukuze zitholakale. Lezi zilwane ezidla ezinye zihle kakhulu ekuqedeni kokubili omiyane abacasulayo kanye nemikhaza eyingozi, amazeze, kanye namanye ama-bug scion angase aqamekele. Enye yezinzuzo ezinhle kakhulu ukuthi anobuthi obuphansi kubantu nasezifuyweni ezifuywayo, ngakho-ke isebenza kangcono kunamanye amakhemikhali amaningi ongase ucabange ukuwafaka. Phezu kwalokho, lawa makhemikhali angonakaliswa yi-biodegradable okusho ukuthi wonakala ngokushesha endaweni ezungezile futhi adala umonakalo omncane emvelweni.

Kungani ukhetha i-Ronch pyrethrins nama-pyrethroids?

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