Crop & Pest Report
The University of Minnesota Institute for Ag Professionals is offering a half-day training workshop on Goss's Wilt of corn and herbicide mode of action at the Northwest Research and Outreach Center in Crookston, MN on Tuesday, August 26. Dr. Dean Malvick, Extension Corn and Soybean Plant Pathologist, Dr. Jeff Gunsolus, Extension Weed Specialist, and Dave Nicolai, Extension Crops Educator will lead the workshop.
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.
Information from the Northeast region of North Dakota.
Information from the North Central region of North Dakota.
Samples have come in showing classic growth regulator (GR) symptoms on soybean.
This spring, there were several growers that mentioned to us that the only prevent plant acres from 2013 that they could plant in 2014 were those that were seeded to a cover crop in 2013.
Conventional wisdom is that strip-till can’t work in the Valley because of our high clay soils. I know that this is untrue.
During the 2010, 2011, and 2013 I estimated N losses in high clay soils based on my ongoing corn N rate project ranging from about 100 pounds per acre in 2010 to nearly 150 pounds per acre in 2011 and 80-100 pounds per acre in 2013. This spring, I established two multi-treatment corn N rate/side-dress N rate studies.
Goss’s bacterial wilt and leaf blight of corn was found in northwest McHenry County last week indicating that now is a good time to start scouting for this disease.
In the last several weeks, clubroot has been found in several fields in the NE part of the state.
The cool temperatures these last few mornings got me wondering about where the corn crop is in terms of development and the prospects for the rest of the season with regards to maturity and moisture levels at harvest.
Recently we had storms move through parts of the state with high winds and in a few cases intense rainfall.
Do-it-yourself (DIY) tiling is an option that is being considered by many farmers/ landowners.
Two insects have been reported clipping silks in field corn – red-headed flea beetles (Systena frontalis) and sap beetles or picnic beetles (Glischrochilus quadrisignatus).
Soybean aphid infestations are spotty this year. Some fields in the Red River Valley have hot spots of aphids and have reached the economic threshold level requiring an insecticidal treatment.
Banded sunflower moths continue to be trapped at high numbers in IPM scout pheromone traps. However, trap captures for the migratory sunflower moth are low throughout the state.
Here are the dates for upcoming tours.
There are two Crop and Pest Reports left for 2014!
Field reports of red sunflower seed weevil (RSSW) adults are being observed in early flowering sunflowers near Bismarck at economic threshold levels and Minot (V. Chapara, NCREC).