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Identification and Control of Invasive and Troublesome Weeds in North Dakota - W1411
Th is publication is intended to help land managers properly identify and control noxious and invasive weeds found in the state. Th e current list of 11 noxious weeds are included, as well as species listed by various counties as noxious. Other species included are either invasive weeds found in bordering states with the potential to move into North Dakota or are commonly misidentifi ed native species that do not require control eff orts, such as the native thistles.
Located in Landing Pages / Crops
Integrated Management of Leafy Spurge - W866
Leafy spurge is the most difficult noxious weed to control in North Dakota and infests all 53 counties in a variety of environments. Leafy spurge is found in pasture, rangeland, cropland, roadsides, shelterbelts, and other non-cultivated areas. Cultivation will control leafy spurge in conventional cropland, but the weed can become the dominant species in reduced-till cropland, pas-ture, and rangeland if not controlled.
Located in Landing Pages / Crops
Leafy Spurge Control Using Flea Beetles - W1183
Leafy spurge is an exotic perennial weed that infests over 800,000 acres in North Dakota. Although leafy spurge can be successfully controlled with herbicides, treating large acreages is not cost-effective. In fact, approximately 40 percent of the leafy spurge infested rangeland has a carrying capacity below the herbicide cost break-even point. Using biological agents to control leafy spurge has become an economic alternative in many locations in the state.
Located in Landing Pages / Crops
Leafy Spurge Identification and Chemical Control - W765
Leafy spurge (Euphorbia esula L.) is a widely established perennial weed in North Dakota, infesting approximately 990,000 acres of land in 2005 (North Dakota Department of Agriculture survey). The leafy spurge infestation in North Dakota seems to have peaked at about 1.5 million acres in 2000 and 2001. The decline thereafter has been a result of an effective control program initiated in the early 1980s. Prior to this control program, leafy spurge acreage doubled every 10 years from 1950 to 1985. Despite the decline in acreage, the widespread infestation continues to cost the state more than $75 million annually in lost production.
Located in Landing Pages / Crops
Perennial and Biennial Thistle Control - W799
Thistles are especially troublesome following cool, wet summers and falls, when seed production and seedling establishment are high. An integrated weed control program that combines chemical, cultural (such as crop rotation or grass competition), mechanical and biological methods is most likely to be successful.
Located in Landing Pages / Crops
Pesticide Use and Pest Management Practices in ND, 2012 - W1711
This is the ninth major account of pesticide usage inNorth Dakota and describes pesticide usage onagricultural land in 2012. The information is derived from a comprehensive survey of North Dakota farm operators.
Located in Landing Pages / Crops
Soybean Production Field Guide for North Dakota and Northwestern Minnesota - A1172
The production guide will provide useful information to assist you in making timely management decisions.
Located in Landing Pages / Crops
Spotted Knapweed (Centaurea maculosa Lam.) - W842
Spotted knapweed is an aggressive, introduced weed species that rapidly invades pasture, rangeland and fallow land and causes a serious decline in forage and crop production. The weed is a prolific seed producer with 1000 or more seeds per plant. Seed remains viable in the soil five years or more, so infestations may occur a number of years after vegetative plants have been eliminated. Spotted knapweed has few natural enemies and is consumed by livestock only when other vegetation is unavailable. The plant releases a toxin that reduces growth of forage species. Areas heavily infested with spotted knapweed often must be reseeded once the plant is controlled.
Located in Landing Pages / Crops
The Thistles of North Dakota - W1120
Thistles in agriculture have a reputation as a sign of untidiness and neglect, and are often found on good ground not properly cared for. However, this unfortunate characteristic is only true of a few invasive species and is not accurate for the vast majority of native thistles which have many useful traits.
Located in Landing Pages / Crops
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