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The Weed Science Society of America in 1994 defined weeds simply as "plants that are objectionable or interfere with the activities or welfare of man." Kudzu, from Japan and perhaps originally China, is a semi-woody vine that came to dominate much of the American Southeast in the later twentieth century. A plant considered undesirable, unattractive, or troublesome, especially one that grows where it is not wanted and often grows or spreads fast or takes the place of desired plants. Encyclopedia.com gives you the ability to cite reference entries and articles according to common styles from the Modern Language Association (MLA), The Chicago Manual of Style, and the American Psychological Association (APA).The importance of weeds has resulted in a significant number of herbicides applied worldwide. Tobacco. However, the benefits of the judicious use of these tactics has resulted in dramatically higher food production and increased agricultural efficiency. Describes a generalized group of weeds whose growing point is above ground. 24 synonyms of weeds from the Merriam-Webster Thesaurus, plus 43 related words, definitions, and antonyms. Since weeds are so common, people generally do not understand their economic impact on crop losses and control costs. A great advantage of chemical herbicides over mechanical weed control is the ease of application, which often saves on the cost of labor. In the weeds is often used literally to refer to stray golf balls and such.
weed definition: 1. any wild plant that grows in an unwanted place, especially in a garden or field where it…. b.

Sedges.

No matter what definition is used, weeds are plants whose undesirable qualities outweigh their good points, according to man. By definition, a weed is known as “a plant in the wrong place.” For the most part, these plants are known more for their undesirable qualities rather than for their good ones, should there be any.

Methods include hand cultivation with hoes, powered cultivation with cultivators, smothering with mulch or soil solarization, lethal wilting with high heat, burning, or chemical attack with herbicides. An aquatic plant or alga, especially seaweed. Weed definition, a valueless plant growing wild, especially one that grows on cultivated ground to the exclusion or injury of the desired crop. Weed control is important in agriculture. Losses in field crops accounted for 82% of this total (Bridges; WSSA, 1992).Certain characteristics are associated with and allow the survival of weeds. Perennial weeds: – weeds that return every year and in addition to seeds usually produce long tap roots. Find another word for weeds. For corn, the cost was $32/acre or about 28% of the $114/acre in total purchased input.


Then, copy and paste the text into your bibliography or works cited list.Because each style has its own formatting nuances that evolve over time and not all information is available for every reference entry or article, Encyclopedia.com cannot guarantee each citation it generates. The best time for the removal of weeds is before they produce flowers and seeds.

Annual weeds: – weeds that germinate and spread by seed and have a one-year lifespan. Weed Science publishes original research and scholarship in the form of peer-reviewed articles focused on fundamental research directly related to all aspects of weed science in agricultural systems.

These strategies may result in soil erosion and herbicides leaching to ground water. Modern mobility and faster forms of transportation are exacerbating the problem in America and around the world.Some of the most notorious invasive weeds in America today include kudzu, tumbleweeds, and leafy spurge.

See more. However, an ecological definition describing the characteristics that allow some plants to be weeds is more useful. Several factors help determine the relative costs of herbicides from one crop to another and include the competitive ability of the crop, the weeds present, the contribution of non-chemical control practices, the tillage method, management decisions, and the value of the crop. Examples: Crabgrass (Digitaria) Giant foxtail (Setaria faberii)

Our human activities create weed problems since no plant is a "weed" in nature. The total cost of weeds in the United States could approach $15 to $20 billion dollars (Ashton and Monaco, 1991). Difference Between Pest and Weed.

Tobacco. A cigarette.

However, non-native plants may also have an advantage in that they can exploit unfilled niches in their new lands while perhaps avoiding traditional enemies. 3. Further, tillage (soil disturbance) is also a primary tactic used to manage weeds. Learn more. And the phrase is used in other contexts to mean "in great, even excessive, detail."