Location: Crop Production and Protection
Project Number: 0500-00102-001-010-S
Project Type: Non-Assistance Cooperative Agreement
Start Date: Jun 5, 2020
End Date: Jun 4, 2025
Objective:
The first objective is to create DNA detection tools for cotton pathogens that can be multiplexed and deployed in air sampling systems. The second objective is to establish the association between initial inoculum, disease development and weather in sentinel plots to build and validate pathogen models. The third objective is to install passive air samplers in commercial cotton fields located near the Sentinel plots and capture daily weather data. The fourth objective is to create a cotton yield epidemiology model for Target Spot based on disease progress and pathogen load. The fifth objective is to archive all data, models, and samples from the previous objectives to allow future investigators to improve models and tools and to retrospectively identify invasive pathogens or virulent strains.
Approach:
The Spurlock lab at the University of Arkansas System Division of Agriculture Cooperative Extension Service will conduct experiments as outlined under Objective 2 (establish a SENTINEL PLOT with active and passive sampling of air borne spores to build and validate pathogen models) of the project. The field experiment in Objectives 2 well be established at the Rohwer Research Station (near Kelso, AR). Terry Spurlock will supervise and work along with the program associate and hourly worker assigned to the project to collect, ship and/or process plant tissue and aerosol samples, quantify target spot and other pathogens that infest the sites, and monitor cotton growth and weather conditions following the protocols detailed in the proposal. Program associate and Spurlock will also work with PIs in the other cotton participating states to organize, process, mine, and analyze weather, disease, and spore density data to quantity associations among measured responses, and eventually test and validate various risk assessment models.
