biennial applications / historical applications / Chemical control / weed control technology / long lived seed bank / buttercup management / chemical / seed bank / chemical herbicides / /
Movie
A.I. / /
NaturalFeature
Hawkes Bay / North Island / British Isles / /
Organization
Congress / Cambridge University / Agricultural Research Division / Botany Division / International Society for Plant Pathology / New Zealand Grassland Association / British Society for Plant Pathology / British Crop Protection Council / Ministry of Agriculture / /