New Zealand Journal of Crop and Horticultural Science abstracts
Short communication
Newly recorded species of Chaetocnema, vector of rice yellow mottle
virus in Tanzania
O. O. BANWO
R. H. MAKUNDI
Department of Crop Science & Production
Sokoine University of Agriculture
P. O. Box 3005, Morogoro
Tanzania
email: banwo@hotmail.com
R. S. ABDALLAH
Tropical Pesticides Research Institute
P. O. Box 3024, Arusha
Tanzania
J. C. MBAPILA
Agricultural & Research Training Institute
PMB, Ifakara
Tanzania
Abstract Rice yellow mottle virus (RYMV) belongs to
the Sobemovirus group and causes the only known virus disease of rice (
Oryza
sativa L.) peculiar to the African continent to date. It was first recorded
in Kenya in 1966 and was not reported in Tanzania until in the 1980s. It has
spread fast and is found in almost all the rice growing areas. Clearly, it is
the most important disease of rice in Tanzania. RYMV is transmitted
mechanically and by chrysomelid beetles.
Chaetocnema pulla Chapuis is
thought to be an important vector of the disease in Tanzania. Transmission
studies conducted revealed a new species,
Chaetocnema sp. nov. prope
varicornis Jacoby, found in Tanzania as also a vector of RYMV. This
species has not been previously reported to occur and to vector RYMV in any of
the countries where the disease is prevalent. Further studies on the roles of
these vectors and the dynamics of virus spread are necessary to provide more
information on the epidemiology of this disease in Tanzania.
Keywords Chaetocnema sp.; Chaetocnema pulla;
Chaetocnema varicornis; rice; rice yellow mottle virus;
Tanzania; vectors
New Zealand Journal of Crop and Horticultural Science, 2001, Vol. 29:
61-66
0014-0671/00/2901-0061 $7.00 (c) The Royal Society of New Zealand 2001
PDF file of entire paper: medium quality (344K); (scanned from paper original: notes about this process)
This year's abstracts |
Journal home page |
All abstracts |
Publishing home page
