Results 181 to 190 of about 8,450 (217)
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The Arizona Cotton Boll Weevil Problem
Journal of Economic Entomology, 1926The Arizona boll weevil is a variety of the well known boll weevil of the South. It is, however, specially adapted physiologically to thrive in arid regions. The natural host plant of the Arizona boll weevil is Thurberia or wild cotton. It has invaded cultivated cotton, however, and is now a serious menace.
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Cotton Boll Growth in Relation to Boll Weevil Injury
Journal of Economic Entomology, 1926This paper gives evidence that as the cotton bolls grow older they are less suceptible to boll weevil, Anthonomus grandis , injury, and the immunity at given ages varies with the variety. Dixie Triumph, Webber 49 and Humco Cleveland were the varieties studied, the first mentioned is the most susceptible and the last the most resistant.
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Thermotropism of the Mexican Cotton Boll Weevil
Journal of Economic Entomology, 1929A new apparatus for determining the thermotropic reaction of insects is described. The Mexican Cotton Boll Weevil (Anthonomus grandis Boh.) showed definite orientation in response to 26°F. at the chilled and 130°F. at the heated end of the apparatus, respectively.
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Cotton, Cotton Bollworm, Tobacco Budwobm and Cotton Boll Weevil Control, 1984
Insecticide and Acaricide Tests, 1985Abstract Cotton seed was planted 28 Apr, ’84, University of Georgia Experiment Station, Midville, GA. Soil type was Dothan loamy sand. A randomized complete block experimental design was used, with 6-row plots x 33 m long x 1 in row width and 5 m alleys with 4 replicates.
J. N. All +4 more
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Cotton, Cotton Bollworm, Tobacco Budworm and Cotton Boll Weevil Control, 1986
Insecticide and Acaricide Tests, 1987Abstract Cotton was planted 16 May at the University of Georgia Experiment Station at Midville, GA, in Dothan loamy sand soil. The experiment was a randomized complete block design with 6 row plots × 100 ft long × 38 inch row width × 15 ft alleys with 4 replicates. Plants were treated with a high cycle sprayer using 3 hollow cone nozzles
J. N. All +3 more
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Cotton Bollworm, Tobacco Budworm and Cotton Boll Weevil Control, 1985
Insecticide and Acaricide Tests, 1986Abstract Cotton was planted 6 May, at the University of Georgia Experiment Station, Midville, GA. Soil type was Tifton loamy sand. Randomized complete block experimental design with 6 row plots × 33 m long × 1 m row width × 5 m alleys with 4 replicates.
J. N. All +4 more
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Cotton Bollworm, Tobacco Budworm and Cotton Boll Weevil Control, 1976
Insecticide and Acaricide Tests, 1977Abstract Lockett 4789-A was planted on May 24'76 at the South Central Research Station, Chickasha, Oklahoma at 20 lb per acre. Eight-row plots, 200 ft long, replicated in a complete randomized block design were used. Spray applications were made with a John Deere Hi-Cycle 600 sprayer traveling at a speed of 4.5 mph at 40 psi. Insecticide
Richard G. Price +3 more
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Boll Weevil (Coleoptera: Curculionidae) Damage to Cotton Bolls Under Standard and Proactive Spraying
Journal of Economic Entomology, 2006In some parts of the boll weevil's, Anthonomus grandis grandis (Boheman) (Coleoptera: Curculionidae), distribution from the United States to Argentina, insecticides are applied after cut-out (end of square production) when bolls are the predominant stage of fruiting body.
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Anthonomus grandis (Mexican cotton boll weevil)
PlantwisePlus Knowledge Bank, 2022openaire +1 more source