Abstract

Abstract A description is provided for Phakopsora gossypii . Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On Gossypium acuminatum, G. arboreum, G. aridium, G. barbadense, G. brasiliense, G. herbaceum, G . mexicanum, G. microcarpum, Gossypium sp. (cult.), Azanza garckeana and Thespesia populnea . DISEASE: Cotton rust. Confined to the growing tissues, chiefly the leaves and spreading from the older parts to the new leaves as rapidly as they are formed causing premature defoliation. The attack is severe on weak plants. GEOGRAPHICAL DISTRIBUTION: Africa (Agalega Is. (near Mauritius), Congo, Ghana, Ivory Coast, Kenya, Mauritius, Nigeria, Sierra Leone, Somalia, South Africa, Tanzania, Uganda); Asia (Burma, Cambodia, Ceylon, China, Fiji, Formosa, India, Java, New Guinea, New Caledonia, Philippines, Thailand); North America (Bermuda, U.S.A.); Central America and West Indies (Cuba, Dominican Republic, Grenada, Haiti, Jamaica, Puerto Rico, St. Vincent, Trinidad); South America (Brazil, British Guiana, Colombia, Ecuador, Venezuela). (CMI Map 258, 1952, Herb IMI and Literature) TRANSMISSION: Airborne urediospores account for the spread of the rust.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.