Crop & Pest Report
Question: Where can I find information on products to control volunteer corn in a wheat crop? Wheat following corn is not the best rotation but with wet spring fields the rotation had to be changed. With more corn in the area I get a few questions each year on it.
Question: One of our agronomists just called and said he sprayed some marestail/horseweed with 32 fl oz of Extreme and 24 fl oz of Cornerstone (glyphosate) and it survived.
Rough cinquefoil (Potentilla norvegica L.) or Sulphur cinquefoil (Potentilla recta L.) samples have been sent in for identification.
There are some growers looking out over wet fields of no-till and wondering if it would have dried had they tilled the fields in the fall?
The IPM scouts visited 147 wheat fields and 16 barley fields last week. Scouts recorded tan spot in 58% of the wheat fields, yet disease severity remains low.
The early season spore stages of sunflower rust (pycnia and aecia) was identified in North Central North Dakota this week on volunteer sunflowers.
For many of the most important diseases of broadleaf crops grown in North Dakota, fungicide efficacy data are now available online at the NDSU Carrington Research Extension Center website.
Corn planting got off to a very slow start this year with very little acreage planted until after the middle of May. About 50% of the corn acreage was planted around May 20th, which is a week later than last year and two weeks later than 2012.
Sugarbeet root maggot (SBRM) fly activity increased considerably during the past week, with sites in the southern Red River Valley (RRV) reaching peaks between June 13 and 16.
The wet, cool weather has kept the cereal aphids and grasshoppers low throughout the state.
Leafy spurge is flowering and land managers are interested in obtaining leafy spurge flea beetles (Aphthona species) for biocontrol of this noxious weed.
We are monitoring the population levels of aster leafhoppers (also called 6-spotted leafhopper) in canola in northeast and north central North Dakota and northwest Minnesota in our cooperative 2014 NDSU and UMN.
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.
The cool weather we experienced for most of the spring held ash anthracnose in check this year in most parts of North Dakota.
I received several calls last week from Agriculturalist and Consultants. A common theme among calls was mixing products with herbicides. Tank-mixing is a common practiced used by producers to reduce the number of trips across a field. However, the concept of tank-mixes must be approached with caution.
Common ragweed continues to become one of the most serious weeds in broadleaf crop production. Without better and more intensive ragweed management it could severely reduce dry bean and other broadleaf crop production in this area.
Liberty Link soybean allows use of Liberty herbicide for control of most small broadleaf and grass weeds. Liberty can control all known weeds resistant to glyphosate (maretail, ragweed, waterhemp, kochia).
Folks are submitting samples of lanceleaf sage for identification. Lanceleaf sage is in the Mint family, has a square stem, and plants have a sage odor.