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Table 6 Summary of the data sources used for the species calculations and the number of countries for which the estimates were based on extrapolation

From: Towards estimating the economic cost of invasive alien species to African crop and livestock production

Species/Crop Literature Survey Extrapolated countries
Spodoptera frugiperda 3 11 27 (7.97)
Prostephanus truncatus 6 4 4 (8.90)
Chilo partellus 5 0 12 (7.18)
Phthorimaea absoluta 3 4 15 (6.77)
Phenacoccus manihoti 2 3 22 (6.6)
BBTV 1 5 9 (7.70)
Bactrocera dorsalis 1 3 33 (6.1)
  1. Numbers in brackets indicate the mean agro-ecological match score (out of 10). The score is an indication of the similarity of agro-ecological zones in the countries for which extrapolations were made and in the closest matching country, on which the extrapolation was based