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首页> 外文期刊>Journal of Agricultural Science >Farmer Knowledge of Climate Change Impacts and Adaptation Strategies in the Management of Vegetable Insect Pests in Zimbabwe
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Farmer Knowledge of Climate Change Impacts and Adaptation Strategies in the Management of Vegetable Insect Pests in Zimbabwe

机译：津巴布韦农民对蔬菜害虫管理中气候变化影响和适应策略的了解

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Farmer knowledge of insect pests’ risks in a changing climate is important in managing insect pests’ incidence. A total of 250 vegetable farmers from 5 wards in Zimbabwe were sampled using a semi-structured questionnaire to assess their knowledge on climate change risk, its impact on vegetable insects pests and management strategies to reduce the increased incidence of insect pests. Focus group discussions, key informant interviews and field observations were also used. Droughts and elevated temperatures were perceived to have the greatest impact on vegetable insect pests resulting in their increased incidence. Aphids, cutworms and whiteflies were identified among the major pests that have increased. The majority (53%) of the farmers cited high vegetable losses from insect pests attack. All the respondents (100%) revealed the use of chemical insecticides during production of vegetables. A higher proportion (60%) perceived effective control, 34% perceived reduced efficacy and 6% were not sure of effectiveness of chemical insecticides. Management strategies to cope with the increasing insect pests and diseases on vegetable production also included planting insect resistant cultivars, certified seeds, increased frequency of application of synthetic insecticides, insecticide mixtures, use of more hazardous chemical insecticides and increasing the rates of application resulting in insecticide overuse. There is need for government to facilitate development and adoption of Integrated Insect Pest Management (IIPM) and raise awareness on avoiding overdependence on chemical insecticides. Modelling tools that support adaptation planning needs to be developed to forecast climate change risk and the resultant incidence of insect pests.
机译：农民了解气候变化中的虫害风险对于管理虫害的发生非常重要。使用半结构化问卷对来自津巴布韦5个区的250位菜农进行了抽样调查，以评估他们对气候变化风险，对菜虫害的影响以及减少虫害增加的管理策略的知识。还使用了焦点小组讨论，关键线人访谈和实地观察。人们认为干旱和高温对蔬菜害虫有最大的影响，导致其发病率增加。在增加的主要害虫中鉴定出了蚜虫，地老虎和粉虱。大多数（53％）农民认为病虫害侵害蔬菜造成的损失很高。所有受访者（100％）透露在蔬菜生产过程中使用了化学杀虫剂。较高的比例（60％）认为有效控制，34％认为功效降低，6％不确定化学杀虫剂的有效性。应对蔬菜生产中不断增加的害虫和病害的管理战略还包括种植抗虫品种，经认证的种子，合成杀虫剂，杀虫剂混合物的使用频率增加，使用更多有害化学杀虫剂以及增加导致杀虫剂使用的比率过度使用。政府需要促进综合虫害管理（IIPM）的开发和采用，并提高对避免过度依赖化学杀虫剂的认识。需要开发支持适应计划的建模工具，以预测气候变化风险以及由此引起的虫害发生率。

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