ABSTRACT

Bactrocera dorsalis (Hendel) is one of the most economically important invasive pests affecting horticulture production in sub-Saharan Africa (SSA). Mango is the main host for this species and causes up to 80% yield loss. To mitigate against this pest, an area-wide integrated pest management (IPM) programme is being promoted in SSA, and Ethiopia is next in line for roll-out. The IPM strategy reduces pesticide use and generates significant income. However, implementation of the IPM requires significant time investment for pest identification, scouting, certain infrastructure, creating awareness and training for area-wide adoption. To assess farmers’ knowledge and perceptions of B. dorsalis and their willingness to pay (WTP) for the IPM, 365 households were interviewed in two mango producing districts in Goma Gofa zone in Ethiopia. A logistic regression model was used to analyse responses to a double-bounded contingent valuation survey. The results showed that 47% of the respondents are WTP for the IPM strategy. Average WTP per hectare was estimated at US$ 134, revealing an existing demand for fruit fly IPM. The respondents’ WTP for the strategy was driven by farm and socio-economic characteristics. Enhancing skills of extension agents could foster IPM dissemination and adoption among mango growers in this region.

摘要

Bactrocera dorsalis（Hendel）是影响撒哈拉以南非洲（SSA）园艺生产的最经济重要的侵入性害虫之一。芒果是该物种的主要寄主，其产量损失高达80％。为了减轻这种有害生物的危害，正在撒哈拉以南非洲推广一项全区域有害生物综合管理（IPM）计划，而埃塞俄比亚则下一步将推广这一计划。IPM战略减少了农药的使用并产生了可观的收入。但是，实施病虫害综合防治需要大量时间投资，用于虫害识别，侦查，某些基础设施，提高认识和培训，以便在整个区域采用。评估农民对桔小实蝇的知识和看法以及他们对IPM的支付意愿，在埃塞俄比亚Goma Gofa地区的两个芒果生产区采访了365户家庭。使用逻辑回归模型分析对双重或有估值评估的响应。结果表明，47％的受访者是IPM策略的WTP。每公顷平均WTP估计为134美元，表明对果蝇IPM的现有需求。受访者对该策略的WTP受农场和社会经济特征的驱动。提高推广人员的技能可以促进该区域芒果种植者对IPM的传播和采用。