Cotton Boll Weevil An Evaluation of USDA Programs : a Report (1981) / Chapter Skim
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COTTON CULTURE AND COTTON INSECT PESTS
COTTON CULTURE AND COTTON INSECT PESTS
Pages 8-19
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From page 8... ...
The staple length of the mature lint ranges from l to 5 cm or more in different species and varieties. Cotton has long been a major crop in the United States.
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From page 9... ...
fiber consumption. It is an important crop to the world, the United States, the textile industry, the economies of the cotton states, and to several hundred thousand people employed in cotton-related industries.
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i I II II II I I I I I II II I I I I 1960 '63 '66 '69 72 75 78 '81 '84 '87 '90 A THE LOWER SHARE PROJECTIONS ARE THE SHARES IMPLIED BY DIVIDING THE TOTAL FIBER USE PROJECTIONS OF ALTERNATIVE I INTO THE COTTON USf PROJECTIONS OF ALTERNATIVE II. FIGURE l.l Actual and projected levels of cotton's share of the total fiber market.
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From page 11... ...
* ^^ ^^ + 1 3% Alternative II Developing -0.2% I I I I Alternative I + 1 .4% __ _ -- -- ir^r 09% Alternative 28 24 20 16 __ Central Plan Alternative I 1.3% Alternative II 24 r -- 20 16 12 1964 '66 '68 70 '72 '74 Alternative + 2.8% ^ ^ ~~ + 1.9% Alternative '85 '90 FIGURE l.3 Actual and projected annual average growth rates of cotton use.
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From page 12... ...
~ * " + 1.5% Alternative I +1.8% -0.1% Alternative II '85 '90 FIGURE l.4 Actual and projected annual average growth rates of cotton production.
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Table l.l gives the cotton production for the major cotton producing states in the USA. There has been a steady shift of cotton acreage within the United States toward the West.
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From page 14... ...
ll,643 48la ll,75l Average yield per acre.
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From page 15... ...
An expansion of Texas and Oklahoma dryland cotton production may be large enough to offset any production declines in the Southeast and West. In the Delta states, which produce 20 to 30 percent of the cotton produced in the United States, future acreage and yield levels are not projected to change significantly.
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From page 16... ...
Cotton growers now have a strong economic incentive to assess the size of insect populations and their potential damage before applying pesticides. The use of scouting procedures allows beneficial arthropods to control cotton insects as long as possible before the application of insecticides.
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From page 17... ...
The cotton ecosystem may be the most chemically altered of all our agroecosystems. COTTON INSECTS Cotton fields contain a surprisingly varied and complex population of insect pests and entomophagous (insect-eating)
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From page 18... ...
Adkisson (l973) listed the key pests in the three major cotton-producing regions in the United States as follows: • West: pink bollworm (Pectinophora gossypiella)
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From page 19... ...
Attempts have been made to establish biological control of the boll weevil, pink bollworm, and lygus bugs by importing exotic parasites, but these have had no measurable effect, in fact, some of the imported parasite species have failed even to become established. No pathogens that are effective against the boll weevil have been reported.
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