1887

oa Journal of the Entomological Society of Southern Africa - Notes on the occurrence and biology of the sorghum aphid in South Africa

Volume 36, Issue 2
  • ISSN : 0013-8789

 

Abstract

The sorghum aphid, Melanaphis (Longiunguis) pyrarius (Passerini) forma sacchari (Zehntner), is a cosmopolitan species and is distributed widely in South Africa. Laboratory studies on the biology of this aphid indicated that young and mature grain sorghum are equally suitable as host plants. Field studies revealed no significant difference between the specific growth rates of sorghum aphid populations on young and mature grain sorghum. During early summer, grain sorghum aphid populations show an exponential growth rate.

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/content/JESSA/36/2/AJA00128789_3446
1973-01-01
2016-12-09

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