A one-dimensional map to study multi-seasonal coffee infestation by the coffee berry borer

Document Type

Article

Publication Date

3-1-2021

Abstract

The coffee berry borer (CBB, Hypothenemus hampei) is the most serious insect pest of coffee worldwide; understanding the dynamics of its reproduction is essential for pest management. The female CBB penetrates the coffee berry, eats the seed, and reproduces inside it. A mathematical model of the infestation progress of the coffee berry by the CBB during several coffee seasons is formulated. The model represents the interaction among five populations: uninfested, slightly infested, and severely infested coffee berries, and free and encapsulated CBBs. Coffee harvesting is also included in the model. A one-dimensional map is derived for tracking the population dynamics subject to certain coffee harvesting percentages over several seasons. Stability analysis of the map's fixed points shows that CBB infestation could be eliminated or controlled to a specific level over multiple seasons of coffee harvesting. However, the percent of coffee harvesting required is determined by the level of CBB infestation at the beginning of the first season and in some cases it is impossible to achieve that percentage.

Identifier

85100064852 (Scopus)

Publication Title

Mathematical Biosciences

External Full Text Location

https://doi.org/10.1016/j.mbs.2020.108530

e-ISSN

18793134

ISSN

00255564

PubMed ID

33484730

Volume

333

Grant

USA 58-1245-4-083

Fund Ref

U.S. Department of Agriculture

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