Utshani besihlabathi buyisitshalo “sesitikha” esibukeka njengotshani.Ngokuvamile ihlasela utshani obuncane, ikakhulukazi eminyakeni eyomile.Ngakho-ke, ukulawulwa okungcono kakhulu kwalolu khula utshani obukhulu futhi obunempilo.Kodwa-ke, uma utshani bakho buncane kakhulu kule ntwasahlobo futhi isihlabathi sotshani sangonyaka odlule siyinkinga, sebenzisa umuthi obulala ukhula ngaphambi kokuvela kwe-sand bur.Kodwa-ke, akuwona wonke ama-herbicides angaphambi kokuhluma asebenzayo.Imikhiqizo emithathu engasiza ekunciphiseni ukusika utshani utshani, i-pendimethalin ne-propylene diamine.
I-Oryzalin ithengiswa ngaphansi kwegama lomkhiqizo elithi Ageruo.Ingasetshenziswa kubo bonke utshani benkathi efudumele kanye notshani obude be-fescue.Ngaphandle kwe-fescue nobunye utshani obude, akufanele busetshenziswe otshanini ngezikhathi ezipholile, njengeKentucky bluegrass.I-Oryzalin ingathengiswa ne-benefin njengomkhiqizo ohlangene we-Green Light Amaze.Njengotshani bubodwa, bungasetshenziswa kubo bonke utshani benkathi efudumele kanye notshani obude be-fescue.Ngaphandle kwe-fescue nobunye utshani obude, akufanele busetshenziswe otshanini ngezikhathi ezipholile, njengeKentucky bluegrass.
I-Pendimethalin ithengiswa njenge-Pendulum emakethe, futhi kukhona namanye amagama amaningana.Ngasohlangothini lwabaninikhaya, ithengiswa njengeScotts Halts.Kungcono ukusebenzisa i-Pendimethalin ngokwehlukana, ingxenye yokuqala izosetshenziswa cishe ngo-Ephreli 15, kanti ingxenye yesibili izosetshenziswa cishe ngoJuni 1st.Noma, yenza isicelo sokuqala lapho isihlahla se-bauhinia sesiqhakaze ngokugcwele, kanye namaviki ayisithupha ngemva kwesonto lesibili.
I-Propylenediamine ithengiswa ngaphansi kwegama lokuhweba elithi Barricade.Iphinde ithengiswe njengemikhiqizo yabanikazi bezindlu i-Howard Johnson Crabgrass Control Plus kanye ne-0.37 Prodiamine 00-00-07.Ingasetshenziswa kubo bonke utshani bethu obuvamile.Cishe ngo-Ephreli 15 noma lapho i-bauhinia iqhakaza, i-spartina isasetshenziswa.Kudingeka isicelo esisodwa kuphela ngonyaka.
Ayikho “i-herbicide” engalawulwa ngokuphelele, kodwa ngamunye kufanele asize.I-Quinclorac (drive) inganikeza ukulawula ngemva kokuhluma, ikakhulukazi uma i-sand bur isesigabeni sezithombo.