ISSUE 4   June 5, 2008

Southwest ND

NDAWN rainfall totals for past two weeks ranged from 0.63 inches at Beach to 1.80 inches at Mandan. Showers have produced highly variable totals across the entire area with some producers reporting lesser and greater amounts reported at the NDAWN sites.

Winter wheat is jointing while many spring wheat fields are at the 3 to 4 leaf stage. Tan spot infections have been reported as low to very low probably due to dry conditions. However weather conditions have been more favorable recently for development of tan spot. A sample of winter wheat from a field near Mott was confirmed to have both wheat streak mosaic virus (WSMV) as well as high plains virus (HPV). Infection occurred early enough to warrant the destruction of the crop and to seed the field to sunflower. Canola is in surprisingly good condition with very good emergence and growth. Field pea seeded in mid-April has advanced to 7 to 9 nodes. Corn seeded about May 10 has emerged. Sunflower seeded on May 23 has emerged.

Crested wheat grass is heading and smooth bromegrass has begun to head but plant height is short due to early season dry conditions when vegetative plant development was occurring. Alfalfa is about 10 to 14 inches tall.

Roger Ashley
Area Extension Specialist/Cropping Systems
NDSU Dickinson Research Extension Center
Roger.Ashley@ndsu.edu

 

South-Central ND

During the past two weeks (May 21 to June 3), the region received rain ranging from less than 0.1 inch at Wishek to 2.2 inches at Lisbon, based on NDAWN (North Dakota Agricultural Weather Network). Rains were spotty and the region needs considerably more rainfall to replenish subsoil moisture. Adequate and uniform row crop stands continue to be a concern, especially in areas not receiving recent rains. Frost occuring on May 23 and 27 injured crops including barley, corn, canola, and soybean. Soybean is the most frost-susceptible crop of the group, but affected acreage appears very low.

Winter wheat is in the tillering to flag-leaf emergence stages, spring wheat and barley are in the tillering stages, and corn has 2 to 3 leaves emerging. Soybean, dry bean and sunflower planting is essentially complete with much of the acreage containing emerged plants. Alfalfa, pasture and hayland growth is slow. Small grain POST herbicide application has been delayed due to delayed weed emergence, wind and recent wet weather but currently is in progress. Tan spot incidence is low in winter wheat but the disease will become more common in all wheat due to the current wet period. Winter wheat should be monitored for wheat streak mosaic and high plains viruses; canola monitored for flea beetles; and row crops for cutworms.

Greg Endres
Area Extension Specialist/Cropping Systems
NDSU Carrington Research Extension Center
gregory.endres@ndsu.edu


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