International Journal of Pest Management (2008) 54, 31-38

Gashawbeza Ayalew, Andrea Sciarretta, Johan Baumgärtner, Callistus Ogol and Bernhard Löhr (2008)
Spatial distribution of diamondback moth, Plutella xylostella L. (Lepidoptera: Plutellidae), at the field and the regional level in Ethiopia
International Journal of Pest Management 54 (1), 31-38
Abstract: Pheromone trap catches were used to study the spatial distribution of Diamondback moth (DBM), Plutella xylostella L., at both single field and regional levels. At the field level, the DBM population tended to remain within the cabbage field. At the regional level, DBM captures were highly influenced by geographic location and cropping systems. In highland areas, daily maximum temperatures positively influenced the aggregation index, whereas in the lowland areas, rainfall had a negative influence on the aggregation index. The implications for integrated DBM managements are as follows: at the local level, knowledge on spatial dynamics allows the delimitation of areas with high DBM infestations for consideration in both monitoring and biological control programmes. At the regional level, areas with year-round production of Brassica spp. and intensive use of pesticides should receive priority in the design and implementation of integrated DBM management systems.
(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): Gashawbeza Ayalew, Bernhard L. Löhr, Andrea Sciarretta, Callistus K.P.O. Ogol, Johann U. Baumgärtner

Research topic(s) for pests/diseases/weeds:
surveys/sampling/distribution
control - general

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Plutella xylostella	Cabbage (Brassica oleracea)	Ethiopia