Ua ʻike ʻia ka mea kumu kumu o ka ring rot i nā laʻana ʻuala mai ʻekolu mau mahiʻai ma ka ʻāina ʻo Amur.
Ua lawe ʻia nā ʻuala mai 7 mau mahiʻai ma ka ʻāina no ka nānā ʻana PCR. ʻO ka huina, ʻoi aku ma mua o 1800 tons i nānā ʻia. Pono e hoʻomaopopo ʻia ma ka nānā ʻana i nā ʻuala ʻuala i hoʻohana ʻia no ka nānā ʻana, ʻaʻohe hōʻailona o ka maʻi i ʻike ʻia, ʻo ia hoʻi ka hele ʻana o ka pathogen i kahi ʻano huna.
I ka makahiki 2020, ua alakaʻi ka lālā o ka Federal State Budgetary Institution "Rosselkhoztsentr" ma ka Amur Region i nā noiʻi ʻana i nā ʻuala no ka hoʻohaumia ʻana me nā pathogens bacterial a viral - "Phytopathogens of Potatoes. DNA", ʻo ia hoʻi no ka hiki ʻana mai o ka mea kumu kumu o ka ring rot Clavibacter michiganensis subsp. Sepedonicus (Cms). Ua hōʻike ʻia nā hopena o ka hoʻopaʻa ʻana ma loko o 1872 mau ʻuala i nānā ʻia, ua loaʻa ke kumu kumu o ka pala ring i 515 tons.
ʻO ka pōʻai ʻuala kahi maʻi ʻōnaehana i hoʻokumu ʻia e ka huakini gram-positive a ʻo ia kekahi o nā maʻi bacteria maʻamau a ʻino. ʻO nā hōʻailona maʻamau o ka maʻi ʻo ka wilting o nā ʻāpana o luna o ka mea kanu a me ka pala o nā ʻōpala, ʻo ia ka hopena o ka pau ʻana o ka uala i kekahi mau makahiki hiki ke piʻi i 50%.
Loaʻa kēia maʻi ma 5 mau ʻāina a ma mua o 30 mau ʻāina. ʻO ka mea kumu kumu o ka maʻi e pili ana i ka mana quarantine honua a ua hoʻokomo ʻia i ka papa inoa A2 o ka European Plant Protection Organization. I kēia manawa, aia kahi manaʻo i ka holomua o kēia bacteriosis, me ka ʻāina o ka Russian Federation. ʻOiai ʻo kēia, ʻaʻole i aʻo nui ʻia nā hana o ka pathogenesis o ka ring rot. ʻOi aku ka paʻakikī o ka pilikia e ka ʻike ʻia ʻo Cms e nā pae latent o ka maʻi, i ka wā i ʻike ʻole ʻia ai nā mea kanu i hoʻopili ʻia, a ʻaʻole ʻike ʻia nā ʻōpala maʻi mai nā mea olakino.