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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
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CABI Agriculture and Bioscience

ISSN: 2662-4044