University research in the Nebraska Panhandle suggests that changing two management strategies may help significantly reduce wheat stem sawfly pressure in winter wheat. Over the years, the sawfly has become a major pest in wheat with few known control measures.
Volunteer wheat can create a "green bridge," providing a route for mites to move to and infest emerging wheat. These mites can then transmit wheat streak mosaic virus, High Plains virus, and Triticum mosaic virus, or all of them to create a complex of infections.
With late planting, slow emergence, and cooler summer temperatures affecting corn development, will corn be spared from western bean cutworm damage in 2019. Unfortunately, models indicate WBC growth is also delayed. See a table of predicted dates for 2019 WBC flights in Nebraska and surrounding states.
A survey and landscape analysis is being conducted to better understand the ecology of both the wheat stem sawfly and its parasitoid, the most effective control method for the wheat stem sawfly in Nebraska.
Key crop insect pests to watch for in the Panhandle, including western corn rootworm, western bean cutworm, corn earworm, wheat stem sawfly, alfalfa weevil, grasshoppers, and a potential new pest, the brown marmorated stink bug. This article is from the 2019 Crop Production Clinic Proceedings.
When it comes to buying corn seed, one way to save money is to ensure you are not investing in GMO insect protection traits you do not need for your particular farm or field. This guide can help you determine which traits you need where.