The National Sunflower Association and North Dakota State University are hosting a sunflower field day on September 5 at the NDSU Carrington Research Extension Center.

Sunflower growers, industry representatives, crop consultants, and other interested persons are invited to attend the event to receive updates on sunflower production research and recommendations. The event begins at 9:30 a.m. with registration and refreshments. Field tours begin at 10 a.m. and conclude at noon with a sponsored meal.       


Tour participants will be able to view and/or hear discussion about new sunflower hybrids, sunflower hybrid tolerance to sclerotinia trial, weed management strategies with herbicide-tolerant sunflower, insect management, and sunflower industry update.


Additional information about the event can be obtained by contacting the Carrington Center (telephone: 701-652-2951, website: or the National Sunflower Association (telephone: 701.328.5100, website:



 South-Central ND


During August 13-19,  NDAWN sites receiving 0.5 to 0.75 inches of rain included Harvey, McHenry and McLeod while other areas in south-central ND received 0.3 of an inch or less. The region=s estimated daily crop water use on August 19 for corn (May 15 emergence), soybean and dry bean (May 29 emergence), and sunflower (June 5 emergence) was 0.15 to 0.24 inches. Dry and warm weather would be welcome for small grain, canola, and hay harvest, but additional rainfall is needed to maintain yield potential of our late-season crops. Scattered frost damage to corn was reported during the past week in Emmons and McIntosh counties. High winds have caused lower stem breakage of isolated dry bean plants, primarily in fields with low or non-uniform plant densities. Winds have also scattered canola, mustard, and flax swathes in some fields in northern counties.


Small grain harvest is near completion south of I94 and in progress north of I94. Preliminary reports indicate average or less seed yield due to moisture and/or heat stress.  Generally, wheat protein is 14% or greater, while other quality factors appear variable.

Canola has been swathed and harvest of canola and flax has begun. Seed yield of both oilseed crops is expected to be less than average. Throughout the region, corn is in the milk to denting stages, soybean are in the R5-R6 stages (seed formation), dry bean are fully podded and leaves are starting to yellow, and sunflower are near the end of bloom or past. Corn harvest for silage will begin in late August in southern counties.


Insecticide application for the red seed weevil in sunflower has been a common task in the region. Growers should continue monitoring and treating (if needed) late-season crops for grasshoppers. Preharvest herbicide application or swathing of wheat and flax has been a common practice due to late-season weed growth.


Greg Endres

Area Extension Specialist/Cropping Systems

NDSU Carrington Research Extension Center