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Funded Project |
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Funding Program:
Integrated Pest Management Competitive Grants Program |
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Project Title:
Development of Evaluation of a Bioeconomic Model For an IPM Tactic for Weeds in Chile Pepper |
Project Directors (PDs):
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Lead State: NM Lead Organization: |
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Cooperating State(s):
Arizona |
| Undesignated Funding: $29,008 |
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Start Date: Mar-01-2014 End Date: Feb-28-2014 |
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Pests Involved: weeds |
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Site/Commodity: chile pepper |
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Area of Emphasis: seed bank reduction |
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Summary:
The economic sustainability of chile pepper production in southern New Mexico and southeastern Arizona is threatened by a reliance on increasingly expensive hand-labor for weed control. To reduce hand-weeding requirements in chile pepper production, we previously identified potential in tactics for weed seedbank reduction. The overall objective of this Project Initiation study is to develop and evaluate a bioeconomic model that allows chile growers to better understand the economic implications of weed seedbank reduction. We will conduct field studies on chile pepper production with the following specific objectives: 1) quantify the effects of tall morningglory seedbank and seedling density on herbicide failures; as well as the effects of seedling density on hand-weeding time requirements; 2) quantify crop yield responses to mid- and late-season interference of tall morningglory; and 3) determine population demographic rates for tall morningglory infestations. Field data will be integrated to produce a bioeconomic simulation model using object-oriented programming language (STELLA). The bioeconomic model will then be used to develop extension outreach materials that will present chile pepper production scenarios under various tall morningglory seedbank densities and with differing degrees of seedbank reduction. This project directly aligns with a research need ( develop advanced management tactics for specific settings that prevent or avoid pest attack ) and a technical development need ( provide science-based information concerning the risks and benefits of IPM to the public ) identified in the National IPM Roadmap. Also, the WIPM Crop Profile for chile pepper in New Mexico has identified tall morningglory as a weed great concern.
Objectives: The overall objective of this study is to develop and evaluate a bioeconomic model that allows chile pepper growers to better understand the economic implications of weed seedbank reduction. Specific objectives are: 1. Quantify the effects of tall morningglory seedbank and seedling density on pendimethalin and carfentrazone, respectively, failures; as well as the effects of tall morningglory seedling density on hand-weeding time requirements. 2. Quantify chile pepper crop yield responses to mid- and late-season interference of tall morningglory 3. Determine population demographic rates for tall morningglory infesting chile pepper 4. Integrate data collected for Objective 1, 2 and 3 to produce a bioeconomic model 5. Evaluate the bioeconomic model as source of information that stimulates change in awareness and knowledge of weed seedbank management. |
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