Cov khoom tseem ceeb yog FAS-qib dawb ntoo qhib los ntawm North America. Tus ntoo tawv yog ib qho nyuaj, nrog meej meej thiab pom tau zoo. Tom qab ua tib zoo xyuas, cov yam ntxwv ntawm ntoo nws tus kheej tau muab khaws cia rau qhov zoo, uas yog khoom plig muab los ntawm xwm. Cov qauv ntoo zoo nkauj roob tau tsim kho zoo nkauj, Sab hauv vaj huam sib luag ntawm cov tub rau khoom yog ua los ntawm paulownia ntoo nrog lub siab tawv, uas muaj zog thiab ruaj khov.
Cov tub rau khoom yog tsim nrog qhov ntau thiab tsawg tsis txaus, tag nrho ntawm daim duab tsis xwm yeem, thiab tuaj yeem ua tau raws li qhov xav tau sib txawv. Qhov siab ntawm lub txee tau hloov kho tom qab kev sim ntau yam, thiab nws yuav yooj yim heev txawm tias koj zaum ntawm ntug ntawm lub txaj kom xaiv khaub ncaws. Pab koj npaj qee qhov hloov pauv Lub luag haujlwm ntawm kev siv, kev siv kaw kaw tuaj yeem muab koj qhov chaw ntiag tug kom txaus.
Cov khoom siv ntoo zawv zawg kos rau qhov tsis tshua muaj neeg nyiam. Txhawm rau kom ntseeg tau tias muaj kev nyab xeeb ntawm kev siv, peb tau tsim tshwj xeeb rub tawm kev tiv thaiv kev tiv thaiv rau txhua lub tub rau khoom, yog li tsis tas yuav txhawj xeeb txog qhov muaj kev nyab xeeb ntawm kev rub lub tub rau khoom. Cov kab yooj yooj yim thiab du, tsuas yog tsim tus qauv loj, Muaj peev xwm txhawb nqa cov qauv yooj yim ntawm qhov chaw nyob.
Cov tawv ntoo tuab thiab cov qauv uas tsis yog ris hauv qab thiab hnav-tiv thaiv nyob hauv qab tuaj yeem tiv thaiv hauv pem teb zoo dua thiab txuas lub neej kev pab cuam ntawm cov txee. Hauv qab tsis chwv hauv av kom tsis txhob ya raws thiab yooj yim rau koj kom huv thiab tu nws. Ib-thooj ceg qauv, ruaj khov tsaws thiab muaj zog tuav.
Lub iav pob tshab thaiv qhov rooj yog sib haum nrog cov khoom siv thiab ua kom pom. Ob peb lub raj mis zoo thiab ob peb daim duab tso rau hauv, uas zoo nkauj thiab siab dav. Lub qhov cua ntsaws tom qab tau muab nruab los lim cov huab cua sab hauv, noo-pov thawj thiab tiv thaiv kev thau. Cov khoom loj zoo qhov rooj pob khawm, qhib yooj yim, tsis muaj suab nrov, tsis yooj yim rau xeb.
Cov khoom ntoo ntxaij zoo nkauj txuas nrog ua ke ntawm cov duab kos, zawv zawg thiab rub yog qhov tu, txuag qhov chaw, thiab ua kom zoo li yooj yim. Nruab nrog lub ntsuas phuam kev nyab xeeb rau lub hauv siab ntawm tub rau khoom kom tiv thaiv kev raug mob ntawm lub txee, tiv thaiv kev noj qab haus huv ntawm tsev neeg, kev nyab xeeb ntawm menyuam, thiab niam txiv ntau dua ntawm yooj yim.