Archives of Phytopathology and Plant Protection (2012) 45, 1764-1772

W.L. Abdou, E.A. Abdel-Hakim, N.Y. Salem, M.H. Mansour and E.M. Amr (2012)
Estimation of economic injury level of Aphis craccivora Koch. (Homoptera: Aphididae) infesting faba bean in new reclaimed area
Archives of Phytopathology and Plant Protection 45 (15), 1764-1772
Abstract: This work was based on field screening procedure to detect the population density of Aphis craccivora for two successive seasons (2004-2005) and (2005-2006) to emphasis the relation between the economic injury level (EIL) and yield loss. Results obtained showed that the equilibrium position (steady point) during the first and second season was 9.06 and 3.32 individuals/five leaflets, respectively, while the injury level was 3.4 and 1.16 individuals/leaflets. When the bean plant was subjected to three successive insecticidal applications during the early growing, season is sufficient to decrease the yield loss significantly (yield capacity 21.43 Ard./fed.) with comparing to untreated plant (14.98 Ard./fed.), while the plants exposure for one treatment was 17.36 Ard./fed. The EIL was 8.6 individual of aphids/plant depending on the market price of bean and control cost during the season.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website

Research topic(s) for pests/diseases/weeds:
damage/losses/economics

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Aphis craccivora	Broad/faba bean (Vicia faba)	Egypt