ʻO nā loea o ka lālā Pyatigorsk o ka Federal State Budgetary Institution VNIIKR (All-Russian Center for Plant Quarantine) i ka wā noiʻi noiʻi i loaʻa i nā laʻana (nā laʻana) o nā huahana i hoʻoponopono ʻia (seed potatoes) kahi maʻi quarantine weliweli - potato spindle tuber viroid.
Ua hoʻoili ʻia ka ʻike e pili ana i ka ʻike ʻana o nā mea quarantine i ka Territorial Administration o Rosselkhoznadzor no ka Teritori Stavropol a me ka Karachay-Cherkess Republic no ka lawe ʻana i nā hana pane kānāwai.
ʻAʻole hana nā Viroids i nā ʻāpana kūʻokoʻa. He ʻāpana nucleotide 359 wale nō ia o RNA. Aia ia i loko o ka mea kanu i hoʻopili ʻia a hana hou ʻia ma o nā hana biosynthetic o ka mea kanu hoʻokipa. Hoʻemi ʻia ka hua o ka tuber, ma muli o ke ʻano pathogen a me nā ʻano ʻuala, e 30-90%.
Hōʻike ʻia ka maʻi e ka hoʻopau ʻana i ka ulu a me ka ulu ʻana o ka mea kanu, ka ʻoki ʻana i nā lau, ka curvature o ko lākou mau lobes a me nā koʻokoʻo, pelu ʻana o nā lobes ma ka midrib, waviness o ko lākou mau ʻaoʻao, hoʻololi kala (grayish-green or yellowish tint, i kekahi manawa anthocyanin coloration. o ka ʻaoʻao hope, nā ʻaoʻao a me nā ʻaoʻao).
He ʻano lōʻihi ka ʻōpuʻu, he ʻano pear a i ʻole ke ʻano dumbbell, me ka nui o nā maka, i kekahi manawa he ʻano like ʻole, me nā kiko brownish ma nā maka. He nāwaliwali nā wana, pinepine, ma kahi o nā wana maʻamau, hana lākou i nā nodule ʻōpio.
Ke hoʻomau nei ka maʻi i nā ʻōpala maʻi a me nā ʻanoʻano, lawe ʻia ma ka hoʻopili ʻana i ka wā o ka ʻoki ʻana a me ke kanu ʻana i nā ʻuala, i ka wā o ka hoʻomaʻamaʻa mechanized, a me kekahi mau ʻano o nā iniseti, ʻo ia hoʻi nā bedbugs a me nā aphids.