- Associated Press
Zatumizidwa: 10 / 4 / 2010
Asayansi aku University of California, Berkeley akupempha anthu kuti awathandize kutsatira matenda omwe akupha mitengo ya oak.
Kwa zaka ziwiri zapitazi, asayansi akhala akudalira anthu kuti atole zitsanzo zamitengo ndi kuzitumiza ku yunivesite ya Forest Pathology and Mycology Laboratory. Agwiritsa ntchito chidziwitsocho kupanga mapu okonzekera kufalikira kwa imfa yadzidzidzi ya thundu.
Tizilombo todabwitsa timeneti tinapezeka koyamba ku Mill Valley mu 1995 ndipo kuyambira pamenepo yapha mitengo masauzande ambiri kumpoto kwa California ndi kumwera kwa Oregon. Asayansi akuyerekeza kuti matendawa, omwe amafalitsidwa kudzera ku zomera ndi madzi omwe amakhala nawo, akhoza kupha pafupifupi 90 peresenti ya mitengo ya thundu yamoyo ku California m'zaka 25 zokha.
Ntchito yojambula mapu, yothandizidwa ndi US Forest Service, ndi ntchito yoyamba yolimbana ndi kufa mwadzidzidzi kwa thundu. Zinali ndi anthu pafupifupi 240 omwe adasonkhanitsa zitsanzo zopitilira 1,000 chaka chatha, adatero Matteo Garbelotto, katswiri wazachipatala ku UC Berkeley komanso katswiri wapadziko lonse pakufa mwadzidzidzi kwa oak.
"Ili ndi gawo la yankho," Garbelotto adauza San Francisco Chronicle. "Ngati tiphunzitsa ndikuphatikiza eni eni malo, titha kupanga kusiyana kwakukulu."
Malo omwe ali ndi kachilomboka akadziwika, eni nyumba amatha kuchotsa mitengo yomwe imapezeka, zomwe zingawonjezere moyo wa oak pafupifupi kakhumi. Anthu okhala m’maderawa akulimbikitsidwanso kuti asamachite ntchito zazikulu zomwe zingasokoneze nthaka ndi mitengo nthawi ya mvula chifukwa zingathandize kufalitsa matendawa.
"Gulu lililonse lomwe likudziwa kuti limwalira mwadzidzidzi m'dera lawo liyenera kunena kuti, 'Hei kulibwino ndichitepo kanthu,' chifukwa mukadzawona kuti mitengo ikufa, nthawi yatha," adatero Garbelotto.
Dinani apa kuti mupeze nkhani yonse yoyeserera kwa Berkeley kutsatira Imfa ya Sudden Oak.