The thrips infestation predictor tool uses planting date, precipitation, and temperature to create an estimate of the size of local thrips population and the susceptibility of seedling cotton to infestations of tobacco thrips (the predominate thrips species in Tennessee). Models can be run for two weeks beyond the current date. Planting decisions should be made based on weather, opportunity and agronomic considerations not based on this model. The model is useful for predicting/anticipating the need for a thrips overspray in addition to an insecticide seed treatment.
Utilizing the model is simple, users select a planting date and a location based on an interactive map. The model will predict thrips risk for planting dates in a designated time frame. As an example, cotton planted before May 5th in West Tennessee has a somewhat lower risk than cotton planted on May 15th. If you look at the within season model, cotton planted May 21- 31 has a much higher risk of thrips infestations than cotton planted in early May. Beware, the accuracy of this model often improves as we approach the intended planting date and rerunning the model as you get closer to planting is a good practice. This tool has helped us time our planting of thrips trials to maximize thrips numbers and will hopefully help you do the opposite.
