Crop & Pest Report
Thrashed small grains fields have a clean and tidy look, especially from the highway. However, closer examination reveals a great number of weeds, especially waterhemp, emerging through the stubble.
A population of waterhemp was confirmed tolerant to PPO inhibitor herbicides in a field in Jackson County, MN in July, 2015. Jackson County borders Iowa and is east of Worthington, MN.
The following information was provided by Lee Van Wychen, Director of Science Policy for Weed Science Society of America.
Although the content of N, P and K are dependent on the amounts of plant nutrients available, and K content of straw decreases when rain falls on it, through it, after harvest, the following are reasonable numbers to estimate the N, P and K content of straw.
Soil sampling is an essential part of good crop nutrient management.
In the south half of North Dakota, small grain harvest is underway and in some regions it is complete.
The typical manila to cream colored white mold lesions are appearing in dry beans and soybeans.
Heavy and frequent dews combined with warm temperatures have provided a favorable environment for sunflower rust.
We have had multiple reports of dry bean rust throughout the state. In many areas, the severity is low, but in some fields severity is already high enough to cause yield loss.
The NDSU Extension Service and the North Dakota Soybean Council are working together again to coordinate a SCN soil testing program.
Excessive rainfall in certain areas of North Dakota has resulted in wet field conditions.
This article is worth repeating on the important of getting bins ready for grain storage to minimized insect pest problems in bins (Source: 2014 Crop & Pest Report).
Pea aphids are being observed at economic populations in the NW area of North Dakota (source: A. Kalil, NW Pulse Crop Survey, Williston REC).
In North Dakota, soybean aphid continues to be sub-economic.
Northern corn rootworm beetles have been emerging the last two weeks.
Weather Forecast: August 4 – August 10, 2016
Information from the Southwest region of North Dakota.
Information from the South Central region of North Dakota.
Information from the Northeast region of North Dakota.
Information from the Northwest region of North Dakota.