oa Journal of the Entomological Society of Southern Africa - The synoptic weather in relation to an outbreak of the African armyworm, Spodoptera exempta (Wlk.)
The relation of weather to an outbreak of armyworm, Spodoptera exempta (Wlk.), which occurred during the dry season in Rhodesia, has been analysed. The results support the hypothesis that immigrant moths were borne by wind to an area of temporary convergence where eggs were deposited. Probably the moths came from infestations in moist grasslands not further north than latitude 150S in Mozambique.
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