Good Day Everyone,
What a wet June south Carolina growers are experiencing! Some people I have talked with say “this may be the wettest June on record.” Since the tropical storm (Andrea), the Edisto Research and Education Center has received more than 7 inches of rain, with more predicted in the next ten days. It is great to have rain during the growing season, but it is causing growers to work harder and longer to stay ahead. One of the biggest issues growers are dealing with now, as a result of the excessive moisture, is weed control. The good news is that growers are slowly winning this war on weeds, despite the wet conditions. A majority of the peanut fields visited over the last week were relatively weed-free and growing very well considering the overly wet and cool conditions. I commend our growers on a job well done so far.
Things to consider over the next month:
With most of the crop now in the 35-45 day old range, gypsum needs to be applied. I know you may be a little late due to the rain but try to get it out as quickly as you can.
- Several growers have asked if gypsum needs to be applied again on fields where they received excessive rain from the tropical storm. This not an easy question to answer. Everyone who is in a good rotation and has maintained their fields for pH, fertility, etc., and have applied a ton of gypsum should be okay. Re-application of gypsum might be needed in a few extremely sandy fields planted to a large Virginia variety, like Gregory or Spain, that received heavy rains. In these cases, before I spent another $40.00 per acre, I would take a 3” deep core soil sample (several in large field) from the field and send it to the soil fertility lab to determine residual calcium in the soil.
For the 40-45 day peanuts, a fungicide program will need to be initiated. You may want to start a little earlier in fields that were planted in peanuts last year (no rotation).
- With the rain in the forecast for the next week or so, Headline or Tilt/Bravo at 45 DAP may be needed to stay ahead of potential leaf spot development on susceptible varieties or in fields planted to peanut last year.
Know the resistance package of your variety.
- Bailey and Sugg have good disease packages; therefore, growers can reduce fungicide inputs without losing yield. * Remember Sugg may be more susceptible to select diseases than Bailey.
- Below are a few examples of a reduced fungicide program that can be used with Bailey.
- In our research on Bailey, the substitution of other fungicides at 60DAP has not always shown a significant increase in yield compared with a 4-spray tebuconazole program.
- A more extensive fungicide program will be needed for other Virginia Varieties and all Runner varieties.
|
45 DAP |
60 DAP |
75 DAP |
95 DAP |
| tebuconazole 7.2 oz+ Bravo 1.5 pt | tebuconazole 7.2 oz+ Bravo 1.5 pt | tebuconazole 7.2 oz+ Bravo 1.5 pt | tebuconazole 7.2 oz+ Bravo 1.5 pt |
| tebuconazole 7.2 oz+ Bravo 1.5 pt | Provost 10.7 oz | tebuconazole 7.2 oz+ Bravo 1.5 pt | tebuconazole 7.2 oz+ Bravo 1.5 pt |
| tebuconazole 7.2 oz+ Bravo 1.5 pt | Convoy 16 oz + Bravo 1.5 pt | tebuconazole 7.2 oz+ Bravo 1.5 pt | tebuconazole 7.2 oz+ Bravo 1.5 pt |
| tebuconazole 7.2 oz+ Bravo 1.5 pt | Abound 18 oz | tebuconazole 7.2 oz+ Bravo 1.5 pt | tebuconazole 7.2 oz+ Bravo 1.5 pt |
| tebuconazole 7.2 oz+ Bravo 1.5 pt | Fontelis 16 oz | tebuconazole 7.2 oz+ Bravo 1.5 pt | tebuconazole 7.2 oz+ Bravo 1.5 pt |
Please let me know if I can help in any way.
Scott
Cell phone: 803-335-8531