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Potential Impact of Climate Change on Dynamics of Coffee Berry Borer (Hypothenemus hampi Ferrari) in Ethiopia

Authors: Eshetu Agegnehu; Tewodros Mulualem; Ashok Thakur;

Potential Impact of Climate Change on Dynamics of Coffee Berry Borer (Hypothenemus hampi Ferrari) in Ethiopia

Abstract

The aim of this paper is to review the potential effect of climate change on dynamics of coffee berry borer and to generate information for researches concerned on it. Coffee (Coffea arabica L.), which is originated in Ethiopia, is the backbone of the country's economy. It accounts for 70% of the for- eign exchange earning, 10% of the government revenue and employs 25% of the domestic labor force. There are four coffee production systems in Ethiopia such as modern plantation, gardens, semi-forest and forest coffee. Among the major factors limiting increased Coffee production glo- bally are losses due to pests and estimated to be 13% worldwide. Over 47 species of insect pests are recorded on Coffee in Ethiopia. Among which Antestia bug, Antestiopsis intricate, A. facetoids and Coffee blotch miner, Leucopteracaffeinia are the major ones inflicting considerable damage as well as insect pests such as Coffee berry borer, Hypothenemus hampei, Coffee thrips, Diarthroth- ripscoffeae, green scale, Coccusalpinus and Coffee cushion scale, Stictococcusformicarius, are po- tentially important insect pests in Ethiopia. In addition to pest constraints, Africa are expected to be placed under considerable additional stress by climate change. This is of particular importance for crops such as coffee, which serves as the economic foundation for many countries in the trop- ics. The Greater Horn of Africa is among the most vulnerable regions to the impacts of climate va- riability and change. Smallholder coffee farmers are more vulnerable to it, because of various con- straints negatively affecting their livelihoods. Climate-induced stress may render plants more vulnerable to opportunistic herbivores. Before 1984, temperatures in the Ethiopian highland's coffee growing regions were cool enough to keep the coffee berry borer in check. However, rising temperatures have enabled several generations of beetles per coffee season. While surveys in 1967 did not show any evidence of coffee berry borers, those conducted in 2003 found that the beetle was widespread in Southwestern Ethiopia. The rise in temperatures and infestation of cof- fee berry borers may already be affecting Ethiopian coffee crops. From 2002 to 2009, coffee yields plunged by nearly 35 percent. Rising temperatures are threatening the nation's coffee crops by * Corresponding author.

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    citations
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    7
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Top 10%
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Average
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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
7
Top 10%
Average
Average
gold