Agroecological distribution of major stalk borers of maize in Zambia

Autor: Kazhila C. Chinsembu, S. H. O. Okech, L. M. N. R. Neukermans
Rok vydání: 1994
Předmět:
Zdroj: International Journal of Tropical Insect Science. 15:167-172
ISSN: 1742-7592
1742-7584
DOI: 10.1017/s174275840001540x
Popis: Surveys were conducted in farmers' fields in Zambia during the 1987/88, 1988/89 and 1989/90 cropping seasons, to evaluate the extent of attack on maize by stalk borers and their distribution in some selected maize growing areas in three agroecological regions. Infestation levels varied from season to season. Infestations were low (0.5–13%) in the Southern province: Gwembe Valley and Livingstone in region I and Choma and Kalomo in region II. Infestation levels in other areas ranged from 21–75%. Three species of stalk borers, Busseola fusca, Chilo partellus and Sesamia calamistis were recorded. Their composition and proportion in the complex differed from place to place. C. partellus occurred at an altitude range of 350–1170m, B. fusca occurred at 1032 to >1300m above sea level. B. fusca was the most widely distributed and predominant.
Databáze: OpenAIRE