I-polyphagous shot hole borer (SHB), Euwallacea sp.i-Fusarium, I-Fusarium euwallaceae, iyisinambuzane esisha: isifo esidala ukulimala nokufa ezihlahleni eziningi zokhuni oluqinile nezokuhlobisa eningizimu yeCalifornia. Ibhungane le-ambrosia linohlobo olubanzi lokusingatha futhi lingaqedela ukukhula ngezinhlobo ezingaphezu kwezingu-20, kuhlanganise nokwatapheya, IPersea americana, i-maple enamaqabunga amakhulu, I-Acer macrophyllum, umdala webhokisi laseCalifornia, I-Acer negundo Kukhona. californicum, California sycamore, I-Platanus racemosa, ogwini bukhoma lwe-oki, I-Quercus agrifolia, ubhontshisi, URicinus communis, umnyezane obomvu, I-Salix laevigata, ne-alder emhlophe, I-Alnus rhombifolia.
I-US Forest Service Region 5 Forest Health Protection isanda kwenza idokhumenti ebonisa izimpawu zokulimala ezidalwe yi-SHB. Chofoza lapha ukuze ulande idokhumenti.