For example, in the mid-90s, herbicides for soybeans cost $30/acre or about 47% of the $63/acre in total purchased input. weed definition: 1. any wild plant that grows in an unwanted place, especially in a garden or field where it…. The total cost of weeds in the United States could approach $15 to $20 billion dollars (Ashton and Monaco, 1991). Weeds are competitive, fighting your garden plants or lawn grass for water, light, nutrients and space. Weeding definition, a valueless plant growing wild, especially one that grows on cultivated ground to the exclusion or injury of the desired crop. In 1991, the estimated average annual monetary loss caused by weeds with current control strategies in the 46 crops grown in the United States was $4.1 billion. 3. weed 1 (wēd) n. 1. Herbicide, an agent, usually chemical, for killing or inhibiting the growth of unwanted plants, such as weeds, invasive species, or agricultural pests. 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. See more. 2. Meaning of Pest Vs. Weed 2.

Weed definition: A weed is a wild plant that grows in gardens or fields of crops and prevents the plants... | Meaning, pronunciation, translations and examples 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. See weed identification resources.

Weeds posses one or more of the following: Primarily, they reduce crop yield by competing for water, light, soil nutrients, and space. Weed Common Usage - A weed is a plant (native or non-native) that is not valued in the place where it is growing (USDA Animal and Plant Health Inspection Service (APHIS)). Definition of a Weed •A plant growing where it is not wanted (Oxford Dictionary) •Any plant or vegetation, excluding fungi, interfering with the objectives or requirements of people (European Weed Science Society) •A plant that is especially successful at colonizing and proliferating in disturbed sites b. Find another word for weeds. Topics for Weed Science include: - the biology and ecology of weeds in agricultural, forestry, aquatic, turf, recreational, rights-of-way and other settings, genetics of weeds Weed definition is - a plant that is not valued where it is growing and is usually of vigorous growth; especially : one that tends to overgrow or choke out more desirable plants. A great advantage of chemical herbicides over mechanical weed control is the ease of application, which often saves on the cost of labor. An aquatic plant or alga, especially seaweed. Slang a. They tend to be able to flourish in a variety of climactic zones and to reproduce easily and quickly over long periods with small seeds that are less likely to be eaten. Definition - Any plant that poses a major threat to agriculture and/or natural ecosystems within the United States. Weedicides are not harmful to crops. Family of plants closely related to grasses with the distinguishing characteristic of having a … Our human activities create weed problems since no plant is a "weed" in nature. Tilling uproots the weeds. b. The Weed Science Society of America defines a weed as a plant that causes economic losses or ecological damage, creates health problems for humans or animals, or is undesirable where it is growing.

4. 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.

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