scholarly journals Control of Colorado Potato Beetle in the Red River Valley, Grand Forks, Nd, 1993

1994 ◽  
Vol 19 (1) ◽  
pp. 119-119
Author(s):  
Edward B. Radcliffe ◽  
Robert A. Suranyi ◽  
Matthew P. Samuelson ◽  
Christina D. DiFonzo ◽  
Craig A. Longtine ◽  
...  
Keyword(s):  
Colorado Potato Beetle ◽  
River Valley ◽  
Red River ◽  
Red River Valley ◽  
Potato Beetle ◽  
Grand Forks

scholarly journals Control of Colorado Potato Beetle in the Red River Valley, Grand Forks, ND, 1994

1995 ◽  
Vol 20 (1) ◽  
pp. 129-129
Author(s):  
Robert A. Suranyi ◽  
Edward B. Radcliffe ◽  
Matthew P. Samuelson ◽  
Galen C. Thompson
Keyword(s):  
First Generation ◽  
Extended Period ◽  
River Valley ◽  
Red River ◽  
Egg Hatch ◽  
Egg Masses ◽  
Red River Valley ◽  
Summer Generation ◽  
Potato Beetle ◽  
Plot Design

Abstract Potatoes were planted 17 May at the Research Farm of the Red River Valley Potato Growers Association. Plots were four rows wide, 60 ft long, with 38 in rows and 12 in between plants. Plots were separated on all sides by 6.3 ft of cultivated soil. The experiment had a complete randomized plot design with four replications. Egg masses were flagged 15 Jun and checked daily. Thirty percent egg hatch was estimated to have occurred 22 Jun, but heavy rains and wet field conditions delayed first application of insecticidal sprays until 24 Jun. Subsequent spray applications were made 5, 12 Jul, and 8 Aug. Jun and Jul sprays were targeted against first generation larvae, Aug application against summer generation adults. All applications were made using a tractor-mounted boom sprayer, with a single Teejet nozzle over each row. Sprays were applied in 40 gal of water/acre at 40 psi. Egg masses, small larvae (1st and 2nd instar), large larvae (3rd and 4th instar), and adults were counted 27 Jun, 7, 14 Jul, and 10 Aug on 20 randomly selected plants from the two middle rows of each plot. Tuber yields were estimated by mechanical harvesting one row per plot 2 Sept. Defoliation data were recorded at each evaluation and expressed as mean percent of defoliation across sampling dates. The average number of insect counts across sampling dates are presented in the table. Best control resulted from the use of Furadan, Imidan, and Capture. Yield differences among treatments were not significantly correlated with any measure of insect numbers. Parts of the field were saturated for an extended period of time by heavy Jun rains, which adversely affected yields in all plots. Tuber yields ranged from 136.7 to 207.4 cwt/acre.

scholarly journals Impact of Controlled Drainage and Subirrigation on Water Quality in the Red River Valley

Water ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 308
Author(s):  
Kristen Almen ◽  
Xinhua Jia ◽  
Thomas DeSutter ◽  
Thomas Scherer ◽  
Minglian Lin
Keyword(s):  
Water Quality ◽  
Surface Water ◽  
Surface Water Quality ◽  
Drainage Water ◽  
River Valley ◽  
Red River ◽  
Nutrient Loss ◽  
Controlled Drainage ◽  
Red River Valley ◽  
The Impact

The potential impact of controlled drainage (CD), which limits drainage outflow, and subirrigation (SI), which provides supplemental water through drain tile, on surface water quality are not well known in the Red River Valley (RRV). In this study, water samples were collected and analyzed for chemical concentrations from a tile-drained field that also has controlled drainage and subirrigation modes in the RRV of southeastern North Dakota from 2012–2018. A decreasing trend in overall nutrient load loss was observed because of reduced drainage outflow, though some chemical concentrations were found to be above the recommended surface water quality standards in this region. For example, sulfate was recommended to be below 750 mg/L but was reported at a mean value of 1971 mg/L during spring free drainage. The chemical composition of the subirrigation water was shown to have an impact on drainage water and the soil, specifically on salinity-related parameters, and the impact varied between years. This variation largely depended on the amount of subirrigation applied, soil moisture, and soil properties. Overall, the results of this study show the benefits of controlled drainage on nutrient loss reduction from agricultural fields.

DOLOMITIZATION IN SOILS OF THE RED RIVER VALLEY, MINNESOTA

Soil Science ◽  
1962 ◽  
Vol 94 (5) ◽  
pp. 297-313 ◽  
Author(s):  
G. DONALD SHERMAN ◽  
FLORENCE SCHULTZ ◽  
F. J. ALWAY
Keyword(s):  
River Valley ◽  
Red River ◽  
Red River Valley

scholarly journals West Nile Virus Epizootiology, Central Red River Valley, North Dakota and Minnesota, 2002–2005

2006 ◽  
Vol 12 (8) ◽  
pp. 1245-1247 ◽  
Author(s):  
Jeffrey A. Bell ◽  
Christina M. Brewer ◽  
Nathan J. Mickelson ◽  
Gabriel W. Garman ◽  
Jefferson A. Vaughan
Keyword(s):  
West Nile Virus ◽  
North Dakota ◽  
River Valley ◽  
Red River ◽  
West Nile ◽  
Red River Valley
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