The Cotton Report is one of several commodity-based agricultural research reports published by the University of Arizona.

This report, along with the Forage and Grain Report, was established by Hank Brubaker, Extension Agronomist, after seeing a similar report published by Texas A&M University in the mid-1970’s.

The purpose of the report is to provide an annual research update to farmers, researchers, and those in the agricultural industry. The research is conducted by University of Arizona and USDA-ARS scientists.

Both historical and current Cotton Reports have been made available in the UA Campus Repository as part of a collaboration between the College of Agriculture and Life Sciences and the University Libraries.

Other commodity-based agricultural research reports available in the UA Campus Repository include:
Citrus Reports | Forage & Grain Reports | Sugarbeet Reports | Turfgrass Reports | Vegetable Reports


Contact CALS Publications at pubs@cals.arizona.edu, or visit the CALS Publications website.

Collections in this community

Recent Submissions

  • Late-Season Pink Bollworm Control

    Watson, T. F.; Fullerton, D. G. (College of Agriculture, University of Arizona (Tucson, AZ), 1970-02)
  • Skip-Row Cotton Favors Acala Varieties

    Blackledge, G. E. (College of Agriculture, University of Arizona (Tucson, AZ), 1965-02)
  • A Summary on Skip-Row Planted Cotton in Arizona

    Briggs, R. E.; Massey, G. D. (College of Agriculture, University of Arizona (Tucson, AZ), 1965-02)
  • Whitefly Management in Arizona: Contribution of Natural Enemies to Whitefly Mortality

    Naranjo, Steven E.; Ellsworth, Peter C.; Diehl, Jonathon W.; Silvertooth, Jeff; USDA-ARS, Western Cotton Research Laboratory, Phoenix, AZ; University of Arizona, Maricopa, AZ (College of Agriculture, University of Arizona (Tucson, AZ), 1998-04)
    Direct-observation studies were conducted to identify causes and estimate rates of mortality of whiteflies over the course of four generations between late June to early September in replicated experimental plots. In plots receiving no whitefly insecticides. predation and dislodgment were major sources of egg and nymphal mortality and overall survival from egg to adult ranged from 1-8.5%. Similar patterns were observed in plots treated with insect growth regulators. except that Knack caused high levels of egg inviability and Applaud was a major source of mortality in small nymphs during the second generation immediately following single applications of these materials. Mortality due to predation was generally lowest for eggs and nymphs in plots treated with a rotation of conventional insecticides reflecting disruption of the predator fauna. Parasitism was a very minor source of mortality throughout. The selective action of the IGRs enhances the abundance and activity of natural enemies resulting in high levels of whitefly control with minimal use of disruptive insecticides. Natural enemies likely contribute to the "extended" residual effects of IGRs so commonly reported by growers.
  • Irrigation Efficiencies and Lint Yields of Upland Cotton Grown at the Maricopa Agricultural Center, 1995

    Sheedy, Mike; Watson, Mike; Silvertooth, Jeff (College of Agriculture, University of Arizona (Tucson, AZ), 1996-03)
    A field trial was conducted at the Maricopa Agricultural Center to observe the effects of four irrigation efficiencies (65%, 75%, 85%, and 95%) on the lint yield produced from two upland cotton varieties (DP 5409 and SG 125). Nitrogen requirements for the crop were determined using pre-season soil samples and in-season petiole samples in conjuction with crop monitoring data collected at weekly intervals. AZSCHED was used as a guide to the irrigation timing and amount of water applied during the season. The actual irrigation efficiencies obtained were less than what was targeted. The end season results were 59, 62, 62, and 68 %, respectively. This is due in part to the inherent inefficiency of irrigations in the early season. This year there was a lint yield response to the different irrigation efficiencies, but no difference in yield between the two varieties. Lint yields were significantly lower in the 95 % irrigation efficiency plots. Lint Yields ranged from 1058 and 1109 # lint/acre (DP5409 and SG125 at 95 %) to 1358 and 1353 # lint/acre (SG 125 and DP5409 at the 85 % irrigation efficiency).
  • Pima Cotton Genetics

    Percy, R. G.; Turcotte, E. L.; Silvertooth, Jeff; Isbell, Joan (College of Agriculture, University of Arizona (Tucson, AZ), 1989-03)
    Seed increase of 104 accessions and data collection on 65 accessions were obtained in 1988 to further the maintenance and evaluation of the Gossypium barbadense L. germplasm collection. In a program of conversion of tropical non flowering cottons to a day-neutral flowering habit, 63 accessions were advanced 1 generation by backcross. A systematic screening of the G. barbadense collection for bacterial blight resistance involving 200 accessions from 21 countries yielded 8 accessions resistant to races 1, 2, 7, and 18 of the pathogen. Genetic inheritance and linkage investigations of a male sterile and a foliar mutant progressed. An investigation of the geographic and taxonomic distribution of the ovate leaf trait was concluded with negative results. The frequency of the 2 mutant genes ov₁ and ov₂ proved to be too rare to yield meaningful taxonomic or geographic information about the species. Preliminary results from a performance evaluation of interspecific hybrid cottons conducted at Maricopa and Safford AZ, indicated strong environmental influences on hybrids, but generally favorable yield earliness and plant height data were obtained from the higher -elevation Safford location.
  • Nematocide Use for Control of Rootknot Nematodes

    Farr, Charles (College of Agriculture, University of Arizona (Tucson, AZ), 1988-03)
    Injection of Telone II in sandy loams containing more than 60 percent sand increased Pima S-6 yield 493 pounds of lint but failed to give economic response with DP 77 in second year cotton. Treatment with Vapam at two rates at the same locations did not increase yield significantly in 1987.
  • Pima Cotton Improvement

    Turcotte, E. L.; Percy, R. G. (College of Agriculture, University of Arizona (Tucson, AZ), 1988-03)
    Five experimental strains and Pima S-6 were grown in nine Regional Tests across the Pima belt in 1987. Experimental strain P70 averaged highest in yield both below and above 2,500 foot elevation. The difference in yield between Pima S-6 and P70 across all locations was 48 pounds of lint per acre. Sequential harvests at Phoenix and Safford, AZ, indicated that P70 was the earliest and Pima S-6 the latest entry in the 1987 Regional Test.
  • 1986 Publications of the Western Cotton Research Laboratory, USDA, ARS

    College of Agriculture, University of Arizona (Tucson, AZ), 1987-03
  • Development and Fecundity of Aphis gossypii (Homoptera: Aphididae) on Cotton

    Akey, David H.; Butler, George D.; Western Cotton Research Laboratory (College of Agriculture, University of Arizona (Tucson, AZ), 1987-03)
    Cotton aphids. Aphis gossypii. from a source near Phoenix. AZ were found to have an optimal developmental temperature of 27.5 °C with a developmental time of 5 days. Fecundity was optimal at 25 °C with 2.85 mean nymphs/day. Both development and fecundity were linear. The optimal temperature for fecundity was higher than those previously reported for cotton aphids in more moderate climates.
  • Effect of Timing and Herbicide Compatibility in the Application of Burst on Upland Cotton

    Stedman, Sam (College of Agriculture, University of Arizona (Tucson, AZ), 1987-03)
    A field trial was conducted to study the elements of application timing and herbicide compatibility in the use of Burst, a plant growth regulator, and the effects of these two factors on yield of upland cotton. Eight treatments combined the two factors of timing and tank mix. The results showed no significant difference in yield between treatments.
  • Evaluation of AZ7203 as a Pink Bollworm Resistant Cotton

    Fullerton, Dale (College of Agriculture, University of Arizona (Tucson, AZ), 1982-02)
  • Publications

    College of Agriculture, University of Arizona (Tucson, AZ), 1986-03
  • Harvesting Progress in 1985

    Farr, C. R. (College of Agriculture, University of Arizona (Tucson, AZ), 1986-03)
  • Heat Units and Stages of Plant Development

    Fisher, W. D.; Pegelow, E. J.; Department of Plant Sciences (College of Agriculture, University of Arizona (Tucson, AZ), 1986-03)
  • Soil Amendment Demonstration on Cotton, Greenlee County

    Tyler, Ray; DeRosa, Edith; Clark, Lee J.; Doerge, Tom; Stroehlein, Jack; Hansson, Bengt; Department of Soils; University of Agriculture in Sweden; Boliden Corp. (College of Agriculture, University of Arizona (Tucson, AZ), 1986-03)
    Boligrow (an aluminum sulfate material from Sweden), gypsum and soil sulfur were evaluated as amendments on soil where differential water uptake had historically been a problem. A crop of cotton was grown and the yield of cotton was taken to determine if an economical change was effected by the amendments. Statistically there was no difference between treatments. A soil analysis indicated that sodium was not a problem in this soil, so texture was probably more related to the differential water uptake problem than was the chemical makeup of the soil.
  • Effect of Nitrogen Fertilizer Application on Cotton Yields, Safford Agricultural Center

    Clark, Lee J.; Gardner, Bryant R. (College of Agriculture, University of Arizona (Tucson, AZ), 1986-03)
    A soil depleted of nitrogen by cropping with Sudan grass and removing all the residues was planted to Upland (DP 90) and Pima (S-6) cotton. Nitrogen was added in the form of urea at three different stages of plant growth, applying a total of 0, 50 or 100 pounds of nitrogen. The yield of lint from DP 90 was increased where nitrogen was added; however, there were no differences in yield with the timing nor total amount of nitrogen added. In the case of S-6, fertilizer nitrogen did not increase yield.
  • Early Insect Control in Cotton, Greenlee County

    Tyler, Ray; DeRosa, Edith; Clark, Lee J.; Moore, Leon (College of Agriculture, University of Arizona (Tucson, AZ), 1986-03)
    Cotton was treated at the pinhead square stage with Orthene to prevent boll shed caused by thrips and Lygus. Yield results showed no statistically significant differences, even though yield trends indicated a decrease in the treated plots compared to the check. Severe pressure from Heliothus later in the season and the yield trends would indicate that the insecticide treatment effect on the beneficial insects was more important than its effect on thrips and Lygus.
  • Time for Development of Eretmocerus mundus, a Parasite of the Sweet Potato Whitefly from Jordan

    Butler, G. D. Jr.; Western Cotton Research Center (College of Agriculture, University of Arizona (Tucson, AZ), 1986-03)
    Development of this sweet potato whitefly parasite from egg to adult varied from 47.5 days at 17.5 °C to 14.0 days at 30.0 °C. Development of the parasite was faster than that of its whitefly host.
  • Spring Build-Up of Whiteflies in Central Arizona

    Butler, G. D. Jr.; Western Cotton Research Center (College of Agriculture, University of Arizona (Tucson, AZ), 1986-03)
    The sweet potato whitefly and banded winged whitefly overwinter and build up in the spring on globe mallow, cheeseweed, and alfalfa in the Tempe, Arizona area. During 1984, the banded winged whitefly was observed to be more abundant on these weeds than the sweet potato whitefly.

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