August 10, 2021 Burke County Ag News
- Georgia Peanut Commission Plans to Host Farm Bill Listening
- Two Ways to Improve Fungicide Spray Coverage and Canopy Penetration
Georgia Peanut Commission Plans to Host
Farm Bill Listening Sessions in August
By Joy Crosby (Georgia Peanut Commission)
Released: AUG. 5, 2021
The Georgia Peanut Commission plans to host three Farm Bill Listening Sessions during the month of August across the peanut belt. The listening sessions will help prepare for the 2023 Farm Bill.
“The commission wants to hear from farmers on their view of the current peanut program. We also want to identify challenges the farmers face,” says Don Koehler, Georgia Peanut Commission executive director. “The listening sessions will help the commission in setting policy direction going into this farm bill.”
The listening sessions will be held on the following days and locations.
Aug. 24, 2021 – 1:00 – 3:00 p.m. Aug. 26, 2021 – 1:00 – 3:00 p.m.
Decatur County Extension Office Bulloch County Extension Office
101 B Ag Lane, Bainbridge, Georgia 39817 151 Langston Chapel Rd, Suite 600, Statesboro, GA 30458
Aug. 30, 2021 – 10:00 a.m. – noon
Tift County Extension Office
1468 Carpenter Road South, Tifton, Georgia 31794
The listening sessions precede congressional listening sessions which may start late this year or early in 2022.
For additional information on the Georgia Peanut Commission and legislative updates, visit www.gapeanuts.com.
Two Ways to Improve Fungicide Spray:
Coverage and Canopy Penetration
For peanut growers, timely and effective fungicide applications throughout the season are an important tool to manage and protect yield from diseases like white mold and leaf spot. Considering the recent rains and wet field conditions, peanut growers are likely already behind and may have missed few fungicide applications. Because of this, the importance of making each fungicide application count – when growers get a chance to get back in the field – is even more critical. For effective fungicide application, beside selection of a good fungicide program, attaining optimum coverage for contact type fungicides on and within the canopy is very important for good disease control. While the proper selection of every spray parameter for effective fungicide application in one way or the other is equally important, there are few that are among the top of the list and have the most effect on both spray coverage and canopy penetration. Additionally, in some cases these parameters can easily be overlooked if a grower is already behind the spray schedule and in a rush to get in and out of his fields within the narrow spray window.
1. Spray Volume: One of the most effective ways to improve spray coverage and canopy penetration is using enough spray volume. Figure 1 below shows spray coverage obtained at three different locations (top, middle and bottom) in the peanut canopy for fungicide applied at the rates of 10, 15 and 20 GPA. As observed, the higher spray volume not only increased the coverage at the top of the canopy but also helped improve the coverage at the middle and bottom of the canopy due to more volume penetrating through and into the peanut canopy. While most pesticide labels have a minimum spray volume requirement (mostly 15 GPA for ground applied fungicides) to attain adequate coverage, and increased volume can further help improve coverage, it is critical that growers do not reduce the spray volume below the minimum recommended volume as it can significantly affect both fungicide coverage and efficacy.
Figure 1. Illustration of spray coverage at three different spray volumes in the canopy.
2. Droplet Size: Size of spray droplets is also another important consideration for maximizing the effectiveness of fungicide application as it can influence both coverage and canopy penetration. Figure 2 below shows spray coverage obtained at three locations (top, middle and bottom) in the peanut canopy for same fungicide volume (15 GPA) applied at three different droplet sizes. Again, it is clearly visible that smaller droplets provided better coverage and canopy penetration while the larger droplets, especially ultra-coarse, were unable to penetrate the peanut canopy resulting in considerably low coverage at the middle and bottom of the canopy. Since only some fungicide labels list droplet size requirements, it is important that growers utilize a combination of nozzle type and pressure that produces medium to coarse droplets to maximize the product efficacy. Growers who prefer to use auxin/dicamba nozzles for spraying peanut fungicides should be extra careful considering the influence of reduced coverage and canopy penetration with larger droplets.
Figure 2. Illustration of droplet size effect on spray coverage in the canopy.
For more information contact please give us a call at (706)554-2119.
Peyton Sapp, CEC
Burke County Extension