Ua hāʻule ka awelika hua ma ka Northwest Europe ma 6,8% mai ka makahiki 5 mau makahiki i 43,9 tonnes / ha.
Wahi a nā koho mua o ka Northwest European Potato Producers Association (NEPG), e emi iki ana ka ʻohi o ka ʻuala ma mua o 27 miliona mau tona.
E hoʻomaka ana ka ʻohi ʻuala ma UK, no laila e paʻi ʻia ka ʻike kikoʻī i ka ʻohi ma ka hopena o Nowemapa. Ma kahi o 70% o kaʻuala i kanu ʻia e hoʻopau ʻia i ka mākeke kūloko.
Ma Pelekiuma a me Nekelana, e hoʻomaka ka ʻohi ma hope o ka maʻamau. I Kepakemapa, ʻoiai ka hana o nā ʻōnaehana holoi wai āpau, ʻaʻole lawa ka wai o nā mea kanu, a i ʻOkakopa, i ka ʻaoʻao ʻē aʻe, nui loa ka ua i hoʻomaka e ʻohi. Ma kahi o 60% o ka hakahaka i hoʻomaʻemaʻe i ka hopena pule i hala.
I kēia kau, nānā nui ʻia i ka mālama ʻana i kaʻuala, ʻoiai he nui nā hua aʻa i hōʻea i nā hale ukana a me nā hale kūʻai ma hope o ka noho ʻana i kahi lewa, a ʻoi aku ka kiʻekiʻe o ka maʻi o ka maʻi pala ma mua o ka maʻamau.
I kēia manawa, hoʻomau ka lawe ʻana o kaʻuala i Polani a me nā ʻāina ma ka hema a me ka hikina hema o ʻEulopa. ʻO nā kumukūʻai o kaʻuala, e like me ka NEPG koho, e hoʻomaka i ka piʻi i 2-3 mau pule, akā ʻo ka uku hope loa e pili ana i ka hua a me ka maikaʻi o kaʻuala. Ma ke ʻano laulā, ʻoi aku ke kiʻekiʻe o ke kumukūʻai o ka hana i kēia kau ma muli o ka hoʻonui kālā ʻana i ka hoʻoulu, hōʻiliʻili a me kahi mālama.