ISSUE 13 August 2, 2007
During the past week (July 24-30), the region received rain ranging from 0 inches at Linton to 2.7 inches at McHenry, based on NDAWN (North Dakota Agricultural Weather Network). The rainfall in the eastern part of the region was very timely for row crops. Daily water use by corn and soybean on July 30 ranged from 0.30 to 0.37 inches, based on estimates from NDAWN.
Winter wheat, barley, and field pea harvest should be completed by August 3. Extension agent reports on winter wheat yields range from 50 to 80 bu/A; barley yields at 35 to 90 bu/A, and field pea at 30 to 70 bu/A. Spring wheat harvest also has started. Late-season leaf disease and heat minimally lowered yield and test weight on barley and spring wheat, but scab impact appears minimal. Canola swathing started the week of July 22. Early-planted corn is silking to blister (R1-2 growth stages). The regionís accumulated corn growing degree days continues to be ahead of the long-term average (range of 40 to 240 units), depending on location and planting dates. Soybean are at full-pod to early-seed development (R4-5 growth stages). Soybean aphid levels generally are low but scouting should continue until seed is fully developed in pods (R6). Bean leaf beetles are being observed in Dickey County soybean fields. Sunflower are beginning to bloom and fields need to be closely monitored for banded sunflower moth and seed weevil. A second cutting of alfalfa is in progress.
Area Extension Specialist/Cropping Systems
NDSU Carrington Research Extension Center