OBJECTIVES OF TRAVEL: * To examine ways in which plant pathologists and practitioners control black root rot in cotton in the USA, including the use of biofumigation crops such as onion or hairy vetch, disinfestation of fields using summer flooding, protective fungicides used as seed dressings etc. * To gain information and a better understanding of the epidemiology of black root rot and the biology of the pathogen. * To develop collaborative research links with plant pathologists working on black root rot and other diseases of cotton in the USA.