Cotton | Description, History, Production, Uses, Botanical Name ...

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• Introduction & Top Questions
• Cotton fiber processing
• Cultivation of the cotton plant
• Pests and diseases

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• What are the uses of cotton?

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External Websites

• PlantVillage - Cotton
• University of Missouri Extension - Cotton Plant Development and Plant Mapping
• National Center for Biotechnology Information - PubMed Central - Systematically and Comprehensively Understanding the Regulation of Cotton Fiber Initiation: A Review
• BMC Biology - Genome-wide chromatin accessibility landscape and dynamics of transcription factor networks during ovule and fiber development in cotton
• National Cotton Council of America - The Story of Cotton
• Feedipedia - Cotton (general)
• Oklahoma Historical Society - Cotton
• University of Utah - Leran.Genetics - Cotton

Britannica Websites Articles from Britannica Encyclopedias for elementary and high school students.

• cotton - Children's Encyclopedia (Ages 8-11)
• cotton - Student Encyclopedia (Ages 11 and up)

Quick Summary Ask the Chatbot a Question Written by Hans-Dietrich H. Weigmann Vice President, Research, Textile Research Institute, Princeton, New Jersey. Hans-Dietrich H. Weigmann Fact-checked by Britannica Editors Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree.... Britannica Editors Last updated Dec. 24, 2025 •History Table of Contents Table of Contents Quick Summary Ask the Chatbot a Question

Top Questions

What are the uses of cotton?

Cotton fibers can be used in a wide variety of fabrics ranging from lightweight voiles and laces to heavy sailcloths and thick-piled velveteens. It is also suitable for a great variety of wearing apparel, home furnishings, and industrial uses. Nonwoven cotton is useful for making disposable products such as tea bags, tablecloths, bandages, and disposable uniforms and sheets.

What type of fiber is cotton?

Cotton is a seed-hair fiber made mostly of cellulose. The fibers are composed of about 87 to 90 percent cellulose (a carbohydrate plant substance), 5 to 8 percent water, and 4 to 6 percent natural impurities.

How tall does a cotton plant grow?

The cotton plant grows up to 6 meters (20 feet) high in the tropics. It characteristically ranges from 1 to 2 meters (3 to 6.5 feet) in height under cultivation.

Why was Bt cotton created?

The genetically modified “Bt cotton” was developed to produce bacterial proteins that are toxic to herbivorous insects, ostensibly reducing the number of pesticides needed. The bacterium Bacillus thuringiensis (Bt) is the source of the genes used to create Bt cotton.

What insects attack the cotton plant?

Cotton plants are attacked by several hundred species of insects, including such harmful species as the boll weevil, pink bollworm, cotton leafworm, cotton flea hopper, cotton aphid, rapid plant bug, conchuela, southern green stinkbug, spider mites (red spiders), grasshoppers, thrips, and tarnished plant bugs.

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cotton, any of several economically significant species of plants of the genus Gossypium, widely cultivated for their seed-hair fibers. One of the world’s leading agricultural crops with a long history of use, cotton can be made into a variety of biodegradable fabrics. Although conventional cotton cultivation often requires significant agrochemical inputs, such as fertilizers and pesticides, organically farmed cotton is often seen as a sustainable alternative to synthetic fibers made of fossil fuels.

Taxonomy

• Kingdom: Plantae
• Division: Angiosperm
• Order: Malvales
• Family: Malvaceae
• Genus: Gossypium

See also list of plant fibers.

Cotton is plentiful and economically produced, making cotton products relatively inexpensive. Cotton fabrics range from lightweight voiles and laces to heavy sailcloths and thick-piled velveteens, suitable for a great variety of wearing apparel, home furnishings, and industrial uses. Cotton textiles can be extremely durable and resistant to abrasion. It accepts many dyes, is usually washable, and can be ironed at relatively high temperatures. Cotton is comfortable to wear because it absorbs and releases moisture quickly. When warmth is desired, it can be napped, a process giving the fabric a downy surface. Various finishing processes have been developed to make cotton resistant to stains, water, and mildew; to increase resistance to wrinkling, thus reducing or eliminating the need for ironing; and to reduce shrinkage in laundering to not more than 1 percent. Nonwoven cotton, made by fusing or bonding the fibers together, is useful for making disposable products to be used as towels, polishing cloths, tea bags, tablecloths, bandages, and disposable uniforms and sheets for hospital and other medical uses.

Cotton fiber processing

Cotton fibers may be classified roughly into three large groups, based on staple length (average length of the fibers making up a sample or bale of cotton) and appearance. The first group includes the fine, lustrous fibers with staple length ranging from about 2.5 to 6.5 cm (about 1 to 2.5 inches) and includes types of the highest quality—such as Sea Island, Egyptian, and pima cottons. Least plentiful and most difficult to grow, long-staple cottons are costly and are used mainly for fine fabrics, yarns, and hosiery. The second group contains the standard medium-staple cotton, such as American Upland, with staple length from about 1.3 to 3.3 cm (0.5 to 1.3 inches). The third group includes the short-staple, coarse cottons, ranging from about 1 to 2.5 cm (0.5 to 1 inch) in length, used to make carpets and blankets, coarse and inexpensive fabrics, and blends with other fibers.

More From Britannica origins of agriculture: Mechanized equipment for cotton Commercially Important Cotton Species

• Upland cotton (Gossypium hirsutum)
• Extra-long staple cotton (G. barbadense)
• Tree cotton (G. arboreum)
• Levant cotton (G. herbaceum)

Most of the seeds (cottonseed) are separated from the fibers by a mechanical process called ginning. Ginned cotton is shipped in bales to a textile mill for yarn manufacturing. A traditional and still common processing method is ring spinning, by which the mass of cotton may be subjected to opening and cleaning, picking, carding, combing, drawing, roving, and spinning. The cotton bale is opened, and its fibers are raked mechanically to remove foreign matter (e.g., soil and seeds). A picker (picking machine) then wraps the fibers into a lap. A card (carding) machine brushes the loose fibers into rows that are joined as a soft sheet, or web, and forms them into loose untwisted rope known as card sliver. For higher-quality yarn, card sliver is put through a combing machine, which straightens the staple further and removes unwanted short lengths, or noils. In the drawing (drafting) stage, a series of variable-speed rollers attenuates and reduces the sliver to firm uniform strands of usable size. Thinner strands are produced by the roving (slubbing) process, in which the sliver is converted to roving by being pulled and slightly twisted. Finally, the roving is transferred to a spinning frame, where it is drawn further, twisted on a ring spinner, and wound on a bobbin as yarn.

Faster production methods include rotor spinning (a type of open-end spinning), in which fibers are detached from the card sliver and twisted, within a rotor, as they are joined to the end of the yarn. For the production of cotton blends, air-jet spinning may be used; in this high-speed method, air currents wrap loose fibers around a straight sliver core. Blends (composites) are made during yarn processing by joining drawn cotton with other staple fibers, such as polyester or casein.

The procedure for weaving cotton yarn into fabric is similar to that for other fibers. Cotton looms interlace the tense lengthwise yarns, called warp, with crosswise yarns called weft, or filling. Warp yarns often are treated chemically to prevent breaking during weaving.

Cultivation of the cotton plant

The various species of cotton grown as agricultural crops are native to most subtropical parts of the world and were domesticated independently multiple times. Cotton can be found as perennial treelike plants in tropical climates but is normally cultivated as a shrubby annual in temperate climates. Whereas it grows up to 6 meters (20 feet) high in the tropics, it characteristically ranges from 1 to 2 meters (3 to 6.5 feet) in height under cultivation. Within 80–100 days after planting, the plant develops white blossoms, which change to a reddish color. The fertilized blossoms fall off after a few days and are replaced by small green triangular pods, called bolls, that mature after a period of 55–80 days. During this period the seeds and their attached hairs develop within the boll, which increases considerably in size. The seed hair, or cotton fiber, reaching a maximum length of about 6 cm (2.5 inches) in long-fiber varieties, is known as lint. Linters, fibers considerably shorter than the seed hair and more closely connected to the seed, come from a second growth beginning about 10 days after the first seed hairs begin to develop. When ripe, the boll bursts into a white, fluffy ball containing three to five cells, each having 7 to 10 seeds embedded in a mass of seed fibers. Two-thirds of the weight of the seed cotton (i.e., the seed with the adhering seed hair) consists of the seeds. The fibers are composed of about 87 to 90 percent cellulose (a carbohydrate plant substance), 5 to 8 percent water, and 4 to 6 percent natural impurities.

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Although cotton can be grown between latitudes 30° N and 30° S, yield and fiber quality are considerably influenced by climatic conditions, and best qualities are obtained with high moisture levels resulting from rainfall or irrigation during the growing season and a dry, warm season during the picking period.

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To avoid damage to the cotton by wind or rain, it is picked as soon as the bolls open, but since the bolls do not all reach maturity simultaneously, an optimum time is chosen for harvesting by mechanical means. Handpicking, carried out over a period of several days, allows selection of the mature and opened bolls, so that a higher yield is possible. Handpicking also produces considerably cleaner cotton; mechanical harvesters pick the bolls by suction, accumulating loose material, dust, and dirt, and cannot distinguish between good and discolored cotton. A chemical defoliant is usually applied before mechanical picking to cause the plants to shed their leaves, thus encouraging more uniform ripening of the bolls.

Pests and diseases

Cotton is attacked by several hundred species of insects, including such harmful species as the boll weevil, pink bollworm, cotton leafworm, cotton fleahopper, cotton aphid, rapid plant bug, conchuela, southern green stinkbug, spider mites (red spiders), grasshoppers, thrips, and tarnished plant bugs. Limited control of damage by insect pests can be achieved by proper timing of planting and other cultural practices or by selective breeding of varieties having some resistance to insect damage. Chemical insecticides, which were first introduced in the early 1900s, require careful and selective use because of ecological considerations but appear to be the most effective and efficient means of control. Conventional cotton production requires more insecticides than any other major crop, and the production of organic cotton, which relies on nonsynthetic insecticides, has been increasing in many places worldwide. Additionally, genetically modified “Bt cotton” was developed to produce bacterial proteins that are toxic to herbivorous insects, ostensibly reducing the amount of pesticides needed. Glyphosate-resistant cotton, which can tolerate the herbicide glyphosate, was also developed through genetic engineering.

The boll weevil (Anthonomus grandis), the most serious cotton pest in the United States in the early 1900s, was finally controlled by appropriate cultivation methods and by the application of such insecticides as chlorinated hydrocarbons and organophosphates. A species of boll weevil resistant to chlorinated hydrocarbons was recorded in the late 1950s; this species was combatted effectively with a mixture of toxaphene and DDT (dichlorodiphenyltrichloroethane), which has been outlawed in the United States and some other countriesr. The pink bollworm (Pectinophora gossypiella), originally reported in India in 1842, has spread throughout the cotton-producing countries, causing average annual crop losses of up to 25 percent in, for example, India, Egypt, China, and Brazil. Controls and quarantines of affected areas have helped limit the spread of the insect, and eradication has been possible in a few relatively small areas with sufficiently strict controls. The bollworm (Heliothis zea, also known as the corn earworm) feeds on cotton and many other wild and cultivated plants. Properly timed insecticide application provides fairly effective control.

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Cotton plants are subject to diseases caused by various pathogenic fungi, bacteria, and viruses and to damage by nematodes (parasitic worms) and physiological disturbances also classified as diseases. Losses have been estimated as high as 50 percent in some African countries and in Brazil. Because young seedlings are especially sensitive to attack by a complex of disease organisms, treatment of seeds before planting is common. Some varieties have been bred that are resistant to a bacterial disease called angular leaf spot. Soil fumigation moderately succeeded in combatting such fungus diseases as fusarium wilt, verticillium wilt, and Texas root rot, which are restricted to certain conditions of soil, rainfall, and general climate. The breeding of resistant varieties, however, has been more effective.

Hans-Dietrich H. Weigmann