International Journal of Pest Management (1999) 45, 51-55

T. Alicai, E. Adipala and R.W. Gibson (1999)
Seasonal changes in whitefly numbers and their influence on incidence of sweetpotato chlorotic stunt virus and sweetpotato virus disease in sweetpotato in Uganda
International Journal of Pest Management 45 (1), 51-55
Abstract: Variation in whitefly numbers on sweetpotato and incidence of sweetpotato chlorotic stunt virus (SPCSV) and sweetpotato virus disease (SPVD) were studied. There were significant differences ( P < 0.05) in monthly whitefly numbers. Overall, whitefly populations increased with temperature and decreased with rainfall within a month. Peak whitefly populations occurred in the hot dry season, but whitefly numbers were generally greatest on crops 3- 4 months old. Incidence of SPVD increased with crop age. Planting date only affected incidence of SPCSV in the second season, and whitefly population was not closely related to SPCSV incidence.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Titus Alicai, Ekwamu Adipala

Research topic(s) for pests/diseases/weeds:
population dynamics/ epidemiology

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Bemisia tabaci	Sweet potato (Ipomoea batatas)	Uganda
	Sweet potato feathery mottle virus	Sweet potato (Ipomoea batatas)	Uganda
	Sweet potato chlorotic stunt virus	Sweet potato (Ipomoea batatas)	Uganda