Farmers' perceptions of a 'push-pull' technology for control of cereal stemborers and Striga weed in western Kenya
Farmers' perceptions of a 'push-pull' technology for control of cereal stemborers and Striga weed in western Kenya
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DOI：
10.1016/j.cropro.2007.12.001
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发表时间：
2008-06-01
期刊：
影响因子：
2.8
通讯作者：
Pickett, John A.
中科院分区：
文献类型：
--
作者：
Khan, Zeyaur R.;Amudavi, David M.;Pickett, John A.
Striga和谷物茎螟是撒哈拉以南非洲谷物生产的主要制约因素，造成严重的粮食安全问题。国际昆虫生理学和生态学中心（ICIPE）及其合作伙伴开发了一种新的综合管理系统，称为缓解方面的“推拉”技术。这包括玉米与一种茎虫蛾驱避饲料豆类银叶山蚂蝗（推）间作，并在间作周围种植一种有吸引力的诱捕作物纳皮耶（拉）。此外，从山蚂蝗根产生的化学物质抑制独脚金。我们评估了农民对害虫的看法，PPT属性和影响其在肯尼亚西部15个地区采用的可能性的因素。随机抽取923户农户，其中478户已采用该技术（实践），445户尚未采用但参加PPT田间日（参观）。实践农民引用Striga和蛀茎虫作为主要的玉米生产限制因素，以及其他限制因素，作为采用PPT的主要动机。PPT的主要好处是减少害虫的侵扰，提高土壤肥力，增加玉米产量，提高饲料和牛奶产量。同样，实地考察的农民认为，与他们自己的玉米生产实践相比，PPT是一种更优越的上级技术。农民的年龄，女农民的户主，技术属性和暴露于各种推广方法显着影响PPT采用的可能性。需要有效的传播途径，向农民提供适当的信息，以评估这种管理密集型技术的潜在利益和利弊。需要进一步研究，以了解PPT如何有助于农民的生计改善，以及PPT技术转让中不同传播途径的效力如何影响其采用。(C)2007爱思唯尔有限公司保留所有权利。
Striga and cereal stemborers are major constraints to cereal production in sub-Saharan Africa causing serious food security concerns. The International Centre of Insect Physiology and Ecology (ICIPE) and partners have developed a novel integrated management system called the 'push-pull' technology (PPT) in mitigation. This involves inter-cropping maize with a stemborer moth-repellent forage legume, silverleaf desmodium (push), and planting an attractive trap crop, Napier grass (pull), around the intercrop. Additionally, chemicals produced from desmodium roots inhibit Striga. We evaluated farmers' perceptions of the pests, PPT attributes and factors influencing the likelihood of its adoption in 15 districts in western Kenya. A random sample of 923 farmers, with 478 having adopted the technology (practicing) and 445 not yet adopted but attending PPT field days (visiting) were interviewed. The practicing farmers cited both Striga and stemborers as major maize production constraints, alongside other constraints, as the main motivations for adoption of PPT. Reduced infestation by the pests, improvement in soil fertility, increase in maize grain yields, improved fodder and milk productivity were cited as main benefits of PPT. Similarly, the field day visiting farmers rated PPT as a more superior technology compared to their own maize production practices. Farmer's age, household headship by female farmers, technology attributes and exposure to a variety of extension methods significantly influenced likelihood of PPT adoption. Effective dissemination pathways are needed to provide farmers with appropriate information for evaluating potential benefits and tradeoffs of such a management-intensive technology. Further research is needed to understand how PPT contributes to farmers' livelihood improvement and how the efficacy of different dissemination pathways in PPT technology transfer influences its adoption. (C) 2007 Elsevier Ltd. All rights reserved.