Assessing the Economic Impact of Hazelnut Green Shield Bug (Palomena prasina L.) Management in Türkiye
Applied Fruit Science, cilt.68, sa.1, 2026 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 68 Sayı: 1
- Basım Tarihi: 2026
- Doi Numarası: 10.1007/s10341-025-01754-4
- Dergi Adı: Applied Fruit Science
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Environment Index, Food Science & Technology Abstracts
- Anahtar Kelimeler: Benefit–cost ratio, Bug prevalence level, Hazelnut, Impact assessment, Pest control
- Ondokuz Mayıs Üniversitesi Adresli: Evet
Özet
Hazelnuts constitute a strategic agricultural commodity for Türkiye, playing a vital role in rural livelihoods, export revenues, and agri-food value chains; however, increasing pest pressures pose a growing risk to both productivity and quality. The aim of this study was to evaluate the economic impact of managing the hazelnut green shield bug (GSB) on hazelnut production in Türkiye, using a benefit–cost approach. Primary data were obtained from 193 randomly selected hazelnut farms through face-to-face interviews conducted during the 2022–2023 production period. The partial budgeting analysis method was used to estimate the costs and economic performance of these hazelnut farms. The study found that 59% of the hazelnut farms used pest control techniques for GSB. Among these farms, 24% had a low prevalence of GSB, and 23% had a medium prevalence. The study also showed that 22% of the farms did not use pest control despite having a low to medium prevalence. Farms using pest management against GSB had a yield of 1217 kg/ha, while those not using pest management had a yield of 1063.1 kg/ha. Production costs were US$ 2.26/kg for farms controlling GSB, and US$ 2.39/kg for farms not controlling GSB. It is estimated that the total cost of controlling GSB in hazelnut orchards in Türkiye amounts to US$ 4.45 million. This control will increase production by 34,738 t, resulting in a total benefit of US$ 95.18 million. The findings can guide farmers and policymakers in optimizing pest control strategies for economic efficiency.