Yellow patches on upper leaf surface
Whiteknights
Fallopia convovulus
Puccinia polygoni-amphibii
23/9/2014
SU73667145
← Rusts affect weeds as well as crops!
Yellow patches on upper leaf surface
Whiteknights
Fallopia convovulus
Puccinia polygoni-amphibii
23/9/2014
SU73667145