Integrated Pest Management Programs to Reduce Reliance on Methyl Bromide Fumigation in Rice Mills
Stored Product Insect Research Unit
2012 Annual Report
1a.Objectives (from AD-416):
1. Assess distribution patterns of insects, including red flour beetle, in rice mills.
2. Evaluate factors that influence capture of beetles.
3. Assess survival of the red flour beetle on different rice milling components.
4. Evaluate efficacy of surface insecticide.
5. Conduct economic risk/benefit analysis of an IPM program for rice mills.
6. Integrate results into web-based management system for rice mills.
7. Disseminate results through Extension and Education programs.
1b.Approach (from AD-416):
This research project will focus on determining relationship of outside pest populations to critical entry points in rice mills. Distribution and abundance of target pest in residual accumulations of milling fractions and components will also be assessed, along with development of the red flour beetle on these different components. Impacts of accumulations of milling components on residual efficacy of surface contact insecticides will also be determined. Data from these projects mentioned above will be used to develop an economic analysis of the IPM approach as an alternative to methyl bromide fumigation for rice mills.
A study has been initiated to monitor red flour beetle and other stored-product beetles at four rice mills in eastern Arkansas. New holders for pheromone traps and concrete dishes used to measure insecticide residual efficacy were developed and deployed. Specific sites outside and inside the mills are being monitored using traps to evaluate spatial distribution and movement of red flour beetle into and out of structures. Temperatures at these sites are also being recorded to assess the relationship with seasonal variation in insect populations. Colonization of outside spillage accumulations by stored-product insects is also being evaluated at these rice mills to determine the role outside accumulations of food might serve are reservoirs for pest populations.
ARS PI monitoring activities to evaluate research progress included: phone calls/conference calls, site visits, and email communications.