Mummunan kwaro na barazana ga bishiyoyin itacen oak na gida; wutar da ta mamaye da ake kai wa wasu wurare na da matukar damuwa
Alhamis, 24 ga Mayu, 2012
Labarin Kauyen Fallbrook Bonsall
Andrea Verdin
Marubucin Ma'aikata
Itatuwan itacen oak na Fallbrook na iya kasancewa cikin babban haɗari na kamuwa da cuta.
A cewar Jess Stoffel, manajan ciyayi na gundumar San Diego itacen oak maras kyau (GSOB), ko agrilus coxalis, an fara gano shi a cikin gundumar a cikin 2004 yayin binciken tarko na kwari na bishiya.
"A cikin 2008 wannan borer yana da alaƙa da haɓakar matakan mace-macen itacen oak da ke gudana a gundumar San Diego tun daga 2002," in ji shi a cikin imel ga shugabannin al'umma. "Kasuwar sa a California na iya komawa tun a farkon 1996, dangane da gwajin itatuwan oak da aka kashe a baya."
GSOB, wanda ɗan asalin ƙasar Arizona ne da Mexiko, wataƙila an shigar da shi a kudancin California ta hanyar itacen oak da ya mamaye. Roger Boddaert, wanda aka fi sani da "mutumin bishiyar" na Fallbrook, ya bayyana cewa "yana da masaniya sosai" game da wannan kwaro da sauran cututtuka.
"Da farko, akwai manyan nau'ikan nau'ikan cuta guda huɗu da cutar take kaiwa, gami da itacen oak. “Kwanan nan na halarci wani taro a Cibiyar Gwamnati ta Pechanga kan borer da sauran matsalolin itacen oak na asali. An sami babban halarta daga Ma'aikatar Dajin Amurka, UC Davis da Riverside, da duk manyan 'yan wasa a cikin wannan babbar damuwa. "
Yana da mummunar kwaro na itacen oak, Quercus agrifolia; canyon live itacen oak, Q. chrysolepis; da California black oak, Q. kelloggii a California kuma ya kashe fiye da 20,000 bishiyoyi a fadin 620,000 acres.
Boddaert ya bayyana cewa an gano GSOB a Julian, kudancin San Diego County, da farko a cikin tuddai.