Crop & Pest Report
Question: Some are recommending growers to mow all the kochia along fields and the low drowned out spots in the field before flowering to reduce seed production. I do not think this would work. I think that while the plants may be short they would still produce viable seed. Please give me the correct answer.
Question: Several people are concerned that using Extreme herbicide this year on soybeans will cause yellow wheat next year. Extreme at 20 fl oz/A is being added to Roundup in RR soybeans for control of broadleaf and grass weeds.
The economic incentive to increase protein in spring wheat to avoid discounts or realize a greater protein premium so far this season is low.
Spotted Bacterial Blight and Brown spot (Figure 1) in recent scouting’s of soybean fields across Ward and Renville counties. These two diseases generally look alike and hard to differentiate with naked eye.
White mold is a concern in most broadleaf crops, but only once they enter bloom and under favorable environmental conditions.
Tilt fungicide now has a new PHI for wheat and barley. The previous label said “Do not apply after Feekes 10.5; the new label says “Do not apply after Feekes 10.54.”
Several people have brought to my attention that the NDSU Small Grain Disease Forecasting site (www.ag.ndsu.edu/cropdisease/) is not opening up properly for them, not giving them access to all the NDAWN stations and growth stage choices.
The national Fusarium head blight prediction center (www.wheatscab.psu.edu/) has a feature that allows you to look at the predicted risk for 24, 48 and 72 hours in the future.
The NDSU small grain disease forecasting site (www.ag.ndsu.edu/cropdisease) indicates that most NDAWN locations are indicating risk of leaf disease, but as of July 9, very low risk of Fusarium head blight (FHB).
Dry bean is a food crop that requires producers to provide special cultural management and attention. Proper management is essential from cultivar selection, field selection and planting through harvest, plus marketing for maximum profitability.
Planting winter wheat this fall in fields that were not planted this spring due to excessive moisture may be an excellent option. Successful winter wheat crop, however, depends its survival during the winter.
Banded sunflower moths and sunflower moths are being captured in pheromone traps across North Dakota.
Leafy spurge flea beetles (Aphthona species) (Fig. 1) are an effective means of controlling leafy spurge in North Dakota.
Maps detailing corn accumulated daily growing days, percent normal rainfall, departure from normal average air temperature, and accumulated wheat growing degree days.
Information from the south-central region of North Dakota.
Issue as described in an email: What are options with 2 million acres of prevent plant in the northern tier of counties with potential for glyphosate resistant kochia.
Dr. Tom Gulya, USDA-ARS, is conducting a survey to monitor the downy mildew pathogen for race changes and fungicide sensitivity.
Downy mildew is caused by a soil borne pathogen that can survive for many years in the soil. When frequent rains occur after planting, the pathogen produces swimming spores (zoospores) that infect roots and cause a systemic infection.
As canola enters bloom, the crop becomes susceptible to white mold. Fungicides are available that can help manage the disease, but the more important decision is whether or not the environment is favorable for infection and disease development.
Risk of tan spot continues in some NDAWN locations in the northern tier of counties. However, the risk of FHB has diminished, due to warmer temperatures and dry conditions occurring now and predicted for the next few days.