DEET:
DEETndi mankhwala ophera tizilombo omwe amagwiritsidwa ntchito kwambiri, omwe amatha kuletsa asidi wa tannic womwe umalowetsedwa m'thupi la munthu pambuyo poti udzudzu waluma, womwe umakwiyitsa khungu pang'ono, kotero ndibwino kuupopera pa zovala kuti mupewe kukhudzana mwachindunji ndi khungu. Ndipo chosakaniza ichi chingawononge mitsempha ikagwiritsidwa ntchito mochuluka. Kugwiritsa ntchito DEET mobwerezabwereza kungayambitse zotsatira zoopsa, choncho onetsetsani kuti mwasamala za kuchuluka ndi kuchuluka kwa mankhwalawa mukamachigwiritsa ntchito, ndipo yesetsani kupewa kumwa kwa nthawi yayitali komanso kugwiritsa ntchito mobwerezabwereza.
Mfundo yogwira ntchito ya DEET ndikupanga chotchinga chozungulira khungu mwa kusinthasintha kwa mpweya, zomwe zingasokoneze kulowetsedwa kwa mpweya m'thupi la munthu ndi masensa a mankhwala a tinyanga ta udzudzu, zomwe zimapangitsa kuti udzudzu usamve bwino ndikupangitsa anthu kupewa kulumidwa ndi udzudzu.
Mankhwala othamangitsa udzudzu:
Mankhwala othamangitsa udzudzu, yomwe imadziwikanso kuti ethyl butyl acetaminopropionate, IR3535, ndi Yimening, ndi pulasitiki komanso yoletsa tizilombo tosiyanasiyana, yogwira ntchito kwambiri komanso yopanda poizoni. Kapangidwe ka mankhwala a ester yoletsa tizilombo ndi kokhazikika ndipo kangagwiritsidwe ntchito m'malo osiyanasiyana a nyengo. Nthawi yomweyo, imakhala ndi kukhazikika kwa kutentha komanso kukana thukuta kwambiri. Udzudzu ndi wofooka pang'ono.
Mfundo yaikulu ya mankhwala oletsa udzudzu ndi yakuti udzudzu umagwiritsa ntchito njira yochotsera fungo kuti upeze malo omwe ali ndi fungo lochokera m'thupi la munthu, monga mpweya wotuluka ndi fungo la khungu, ndipo ntchito ya mankhwala oletsa udzudzu ili m'thupi la munthu. Pamwamba pake pamapanga chotchinga, motero zimalekanitsa kutulutsa fungo m'thupi la munthu, zomwe zimapangitsa kuti udzudzu usatuluke, komanso zimasokoneza kuyambitsa fungo la udzudzu, motero zimapangitsa kuti udzudzu usatuluke.
Nthawi yotumizira: Julayi-22-2022



