Pathogen. Bowa wowola wa pinki ndi wochokera kunthaka ndipo amapezeka m'nthaka zambiri zaulimi.
Kukula kwa matenda. Matendawa amapezeka nthawi yokolola isanakwane kapena nthawi yokolola. Matendawa amabwera chifukwa cha chinyezi chambiri m'nthaka, mawanga otsika m'munda, malo othirira kwambiri komanso dothi lopanda madzi.
Bowa limalowa mu tubers makamaka kudzera mu stolons, koma matenda kudzera mu mphodza ndi maso amatha kuchitika. Bowa amathanso kuwononga ma tubers kudzera m'mabala omwe amapangidwa panthawi yokolola ndikugwira.
Zowola za pinki zimatha kufalikira pang'onopang'ono posungira.
Russet Norkotah, Goldrush, Snowden ndi Kennebec ndi omwe amawola kwambiri ndi pinki.