Economic Impact Assessment of Biological Control Researches (in Thai)
Biological control researches have been carried out for some time but there have been few studies to evaluate their benefit to society. The paper evaluates the impacts of biological control researches using the data from field survey and the National Biological Control Research Center. The data were collected from all regions of Thailand. A logit model and an economic surplus concept are used to base the analysis. The results show that the benefits to society comprised dissemination of knowledge to public, technological development, and economic impacts of the project. Two examples are the project ”Utilization of Cotesia flavipes (Cameron) for Augmentative Biological Control of Sugarcane Moth Borers”, which generated a net benefit of 3.7 million baht and the project “Utilization of Natural Enemies to Control Corn Stem Borer in Sweet Corn” of 0.5 million baht. Both research projects worth the investment. The economic value would increase if the level of adoption increased. Associated government agencies should encourage greater use of the research results. More training for farmers should be provided.
Keywords: impact assessment, biological control, adoption of technology
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