Forecasting the severity of armyworm seasons in East Africa from early season rainfall

作者: M. R. Tucker

DOI: 10.1017/S1742758400001429

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摘要: The relationship between seasonal numbers of outbreaks African armyworm ( Spodoptera exempta ) in Kenya and Tanzania, early season rainfall source areas has been examined using records for 21 seasons. Significant inverse relationships were found rains the Kisumu area, Tanzania Morogoro Mtwara areas. Total outbreak significantly inversely related to 8 combined. These results suggest that totals, either from specific likely or countrywide, could be used January give a forecast during rest season. Seasons with more than average often follow poor visa versa. Further work is needed establish biological causes this apparent relationship.

参考文章(8)
Forecasting Infestations of a Migrant Pest: The African Armyworm Spodoptera exempta (Walk.) Philosophical Transactions of the Royal Society B. ,vol. 287, pp. 403- 413 ,(1979) , 10.1098/RSTB.1979.0072
The significance of low-density populations of the African armyworm Spodoptera exempta (Walk.) Philosophical Transactions of the Royal Society B. ,vol. 287, pp. 393- 402 ,(1979) , 10.1098/RSTB.1979.0071
M. R. TUCKER, S. MWANDOTO, D. E. PEDGLEY, Further evidence for windborne movement of armyworm moths, Spodoptera exempta, in East Africa Ecological Entomology. ,vol. 7, pp. 463- 473 ,(1982) , 10.1111/J.1365-2311.1982.TB00689.X
E. S. Brown, G. Swaine, New evidence on the migration of moths of the African armyworm, Spodoptera exempta (Wlk.) (Lepidoptera, Noctuidae) Bulletin of Entomological Research. ,vol. 56, pp. 671- 684 ,(1966) , 10.1017/S0007485300056674
M. R Tucker, D. E Pedgley, Rainfall and outbreaks of the African armyworm, Spodoptera exempta (Walker) (Lepidoptera: Noctuidae) Bulletin of Entomological Research. ,vol. 73, pp. 195- 199 ,(1983) , 10.1017/S0007485300008804
E. S. Brown, Elizabeth Betts, R. C. Rainey, Seasonal changes in distribution of the African armyworm, Spodoptera exempta (Wlk.) (Lep., Noctuidae), with special reference to eastern Africa Bulletin of Entomological Research. ,vol. 58, pp. 661- 728 ,(1969) , 10.1017/S0007485300055978
E. W. Russell, D. A. Hawkins, The natural resources of East Africa ,(1962)