Title page for ETD etd-07202010-115646


Type of Document Master's Thesis
Author Nouhoheflin, Theodore
Author's Email Address ntheo08@vt.edu
URN etd-07202010-115646
Title Assessing the Economic Impacts of Tomato Integrated Pest Management in Mali and Senegal
Degree Master of Science
Department Agricultural and Applied Economics
Advisory Committee
Advisor Name Title
Norton, George W. Committee Chair
Bosch, Darrell J. Committee Member
Mills, Bradford F. Committee Member
Mullins, Donald E. Committee Member
Keywords
  • Senegal
  • Mali
  • Economic surplus
  • Adoption
  • Impact assessment
  • IPM strategies
Date of Defense 2010-07-07
Availability restricted
Abstract
This study assesses the research benefits of IPM technologies and management practices aimed at reducing the virus problem in tomatoes in West Africa. Surveys are conducted with producers, extension agents, scientists, and other experts to obtain information and economic surplus analysis is used to project benefits over time. The determinants of adoption are assessed using a probit model. Results show that adoption of the host-free period reduced the amount of insecticide sprays by 71% and the production cost by $200/ha in Mali. The cost-benefit analysis indicated that the use of virus-tolerant seeds generated profits ranging from $1,188 to $2,116/ha in Mali and from $1,789 to $4,806/ha in Senegal. The likely factors influencing adoption of the technologies in both countries are the frequency of extension visits, farmer’s field school training, gender, education, seed cost, tomato area, and experience in tomato losses. The benefits in the closed economy market vary from $3.4 million to $14.8 million for the host-free period, $0.5 million to $3 million for the virus-tolerant seeds, and $4.8 million to $21.6 million for the overall IPM program. In the same order, the benefits under the open economy market range from $3.5 million to $15.4 million, $0.5 million to $3million, and $5 million to $24 million. The distribution pattern indicates that producers gain one-third and consumers two-thirds of the benefits. Our results support policies aiming to increase the adoption rate or the expected change in yield.
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