Variable Rate Peanut Fungicide
- Save money from reduced sclerotinia fungicide applications
- Potentially increase yield in high disease pressure from higher application rates
Southwest peanut growers continue to try to increase yields and reducing input costs. Perhaps the largest input in a peanut crop is fungicide applications. This is especially true for areas in the region that have high disease pressure from sclerotinia. On average, a single fungicide application costs $50-60/acre to help control the disease. Precision ag technologies (GPS, variable rate applicators, aerial imagery, etc.) are currently available that provide producers with application options.Currently we have two strategies of defining management zones when it comes to variably applying fungicide to control sclerotinia: 1) grid sampling to determine sclerotia concentration in the soil or 2) using aerial imagery from past years. Either method has been proven to be effective and can significantly reduce fungicide cost.
With variable rate fungicide applications you can typically save 40-60% on fungicide to control sclerotinia. Another benefit of variable rate fungicide application is that we can use the highest labeled rate in the highest disease pressure areas. Research has shown that higher application rates will increase yield more compared to lower rates on fungicide labels.Also, historic yield maps can be used to help confirm high and low disease areas.
What you receive:
- Prescription map based on imagery or soil sampling
- Evaluation at end of the season