I-Diflubenzuron i-insecticide ekhethiweyo yokulawula izinambuzane

Ingcaciso yeMveliso

I-chlorinated diphyenyl compound, i-diflubenzuron, ngumlawuli wokukhula kwezinambuzane.I-Diflubenzuron yi-benzoylphenyl urea esetyenziselwa ihlathi kunye nezityalo zentsimi ukulawula ngokukhethiweyo izinambuzane kunye nama-parasites.Ezona ntlobo zezinambuzane ekujoliswe kuzo yigypsy moth, umbungu weentente zamahlathi, amanundu amaninzi ahlala eluhlaza, kunye ne-boll weevil.Ikwasetyenziswa njengekhemikhali yokulawula imibungu kwimisebenzi yamakhowa nakwizindlu zezilwanyana.Isebenza ngokukodwa kwi-larva yezinambuzane, kodwa isebenza njenge-ovicide, ibulala amaqanda ezinambuzane.I-Diflubenzuron sisisu kunye netyhefu yoqhagamshelwano.Isebenza ngokuthintela ukuveliswa kwe-chitin, i-compound eyenza isigqubuthelo sangaphandle sesinambuzane sibe nzima kwaye ngaloo ndlela siphazamise ukubunjwa kwe-cuticle okanye igobolondo lesinambuzane.Igalelwa kumhlaba owosulelekileyo kwaye iya kubulala imibungu yeembuzane zomngundo iintsuku ezingama-30-60 ukusuka kwisicelo esinye.Nangona ijoliswe kwimibungu yeembuzane zomngundo, kufuneka kuthathelwe ingqalelo xa isetyenziswa njengoko inetyhefu kakhulu kwizilwanyana ezininzi zasemanzini ezingenamqolo.Ayinayo imiphumo enetyhefu kwizinambuzane zabantu abadala, kuphela izibungu zezinambuzane ezichaphazelekayo.I-Diflubenzuron inokubangela ukulimala okunzulu kwizityalo kwintsapho ye-spurge kunye neentlobo ezithile ze-begonia, ngokukodwa i-poinsettias, i-hibiscus kunye ne-reiger begonia kwaye akufanele isetyenziswe kwezi ntlobo zezityalo.

IDiflubenzuron inozinzo oluphantsi emhlabeni.Izinga lokuthotywa komhlaba lixhomekeke kakhulu kubungakanani besuntswana le-diflubenzuron.Iyancipha ngokukhawuleza ngeenkqubo ze-microbial.Isiqingatha sobomi emhlabeni sisithuba seentsuku ezi-3 ukuya kwezi-4.Ngaphantsi kweemeko zentsimi, i-diflubenzuron inokuhamba okuphantsi kakhulu.Incinci kakhulu i-diflubenzuron ifunxwa, i-metabolized, okanye idluliselwe kwizityalo.Iintsalela kwizityalo ezifana nama-apile zinesiqingatha sobomi beeveki ezi-5 ukuya kwezili-10.Ubomi besiqingatha se-oki leaf litter ziinyanga ezi-6 ukuya kwezi-9.Isiphelo seDiflubenzuron emanzini sixhomekeke kwipH yamanzi.Iyancipha ngokukhawuleza kumanzi e-alkaline (isiqingatha sobomi yimini e-1) kwaye ngokuthe ngcembe emanzini ane-asidi (isiqingatha sobomi ziintsuku eziyi-16+).Isiqingatha sobomi emhlabeni buphakathi kweentsuku ezine neenyanga ezine, kuxhomekeka kubungakanani bamasuntswana.