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Predicting stored grain insect population densities using an electronic probe trap.

P W Flinn¹, G P Opit, J E Throne

¹USDA-ARS, Grain Marketing and Production Research Center, Manhattan, KS 66502, USA. paul.flinn@ars.usda.gov

Journal of Economic Entomology

|September 10, 2009

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Automating stored grain pest monitoring with the OPI Insector electronic probe trap significantly aids integrated pest management. This system provides reliable insect density estimates, streamlining pest management decisions in stored wheat.

Area of Science:

Agricultural Entomology
Pest Management Science
Data Science in Agriculture

Background:

Manual insect sampling in stored grain is inefficient and labor-intensive.
Automation of grain sampling is crucial for widespread adoption of integrated pest management (IPM).
The OPI Insector electronic grain probe trap offers a novel automated sampling solution.

Purpose of the Study:

To field-test the OPI Insector electronic grain probe for monitoring insect pests in stored wheat.
To develop statistical models for converting trap catch data into insect density (insects per kilogram).
To integrate the OPI Insector with the Stored Grain Advisor Pro expert system for automated pest management decisions.

Main Methods:

Field testing of OPI Insector probes in wheat bins over a two-year period.

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Development of statistical models to estimate insect density from Insector counts.

Modification of the Stored Grain Advisor Pro expert system to process Insector data and estimate pest densities.

Main Results:

The OPI Insector system, coupled with new statistical models, provided reliable estimates of insect density in stored wheat.
Management decisions based on Insector data were largely consistent with those from traditional grain sampling.
The system could not differentiate between Rhyzopertha dominica and Tribolium castaneum due to their similar size.

Conclusions:

The OPI Insector system is a valuable tool for automated monitoring of stored grain insect pests.
Integration with Stored Grain Advisor Pro enhances IPM capabilities for stored wheat.
Manual inspection may be required in regions where R. dominica and T. castaneum co-occur to determine species proportions.