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Control of cereal aphids on wheat in People's Democratic Republic of Yemen

Published online by Cambridge University Press:  08 April 2017

S. A. Ba-Angood
S. A. Ba-Angood
Affiliation:
Department of Plant Protection, Faculty of Agriculture, University of Aden, Khormakser, P.O. Box 6172, Aden, PDR of Yemen
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Abstract

Loss estimates for wheat insects in Africa and Asia have not received adequate attention. However, in PDR of Yemen, pests including insects, diseases, weeds and birds can cause 10™70% loss of wheat crop. Aphids are considered to be the major insect pests of wheat in the country. A survey of indigenous natural enemies has shown that they may contribute to overall aphid control. Sowing date experiments have shown that sowing in November led to higher yields and lower insect infestation than sowing in October and December. The insecticides tested achieved a significant control of aphids and higher yields when compared with unsprayed plots. A single application of malathion or dimethoate before mid-January was recommended for chemical control.

Keywords

Cereal aphidssowing dateschemical controlPDR Yemen
Type
Research Articles
Information
International Journal of Tropical Insect Science , Volume 6 , Issue 2 , April 1985 , pp. 221 - 225
Copyright
Copyright © ICIPE 1985

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References

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