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Control of Texas Root Rot of Cotton with Propiconazol in ArizonaHowell, Don, Heathman, Stan 02 1900 (has links)
No description available.
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Estimating Cotton Crop Loss Caused by Phymatotrichum omnivorumHine, R. B., Whitson, R. S., Lyda, S. D. 02 1900 (has links)
No description available.
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Nematocide TrialsMulrean, E. N., Mueller, J., Hine, R. B., von Bretzel, P. 02 1900 (has links)
No description available.
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Estimating Cotton Yields Using Small-Format Aerial PhotographyParton, M. C., Mulrean, E. N. 02 1900 (has links)
In 1981, the University of Arizona's Department of Plant Pathology and Office of Arid Lands Studies (Arizona Remote Sensing Center) began a joint research project to map and estimate concomitant reductions in yield caused by Phymatotrichum root rot (PRR) using simulated orbital and airborne imagery. With support from the U.S. Department of Agriculture, Cooperative States Research Service and NASA-Ames Research Center, substantial progress has been made in improving estimates of yield. While work to date has been limited to cotton, future studies will include additional crops and other diseases.
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Nematocide Use in Upland CottonFarr, C. R. 02 1900 (has links)
No description available.
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Nitrogen Rates and Petiole AnalysisFarr, C. R. 02 1900 (has links)
No description available.
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Host Range Study of the Cotton Leaf Crumple VirusBrown, J. K., Nelson, M. R. 03 1900 (has links)
The 1985 and 1986 Cotton Reports have the same publication and P-Series numbers. / Cotton leaf crumple (CLC) is incited by a whitefly- transmitted plant virus that infects primarily species within the genus Gossvpium. An extensive host range study was undertaken to identify other hosts which could serve as virus reservoirs in cotton growing areas. More than 20 plant species within the Leguminosae and Malvaceae were identified as CLCV hosts, some of which may be important in the epidemiology of the disease both in cotton and in newly recognized host crop species.
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Steron-Inhibiting Fungicides to Control Southwestern Rust of CottonYoung, Deborah J., Sullivan, L. M. 03 1900 (has links)
The 1985 and 1986 Cotton Reports have the same publication and P-Series numbers. / The use of sterol-inhibiting fungicides significantly decreased the number of aecial pustules on cotton leaves. The use of these fungicides did not significantly increase seed cotton yields when compared to check plots nor when compared to plots where a conventional, protective fungicide was used.
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Seed Treatment to Prevent Black Root RotTyler, Ray, DeRosa, Edith, Clark, Lee J., Olsen, Mary 03 1900 (has links)
The 1985 and 1986 Cotton Reports have the same publication and P-Series numbers. / NU-Zone (imazalil) + Nu-Flow ND (TCMTB + Chloroneb), NU-Flow ND, and Vitavax (carboxin) were evaluated as seed treatments with and without in-furrow PCNB. The following was learned: - Vitavax-treated seed got out of the ground faster than the other treatments, which brings out the possibility that NU-Flow or NU-Zone slows germination. - Stands and root development were slightly better when NUZone was present. - NU-Zone + NU-Flow ND seed treatment is not totally effective in controlling black root rot in heavily inoculated soils. - NU-Flow ND alone is the least effective of the treatments. - In-furrow PCNB did not affect yields.
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Nematocide Comparisons for Rootknot Nematode ControlFarr, C. R. 03 1900 (has links)
The 1985 and 1986 Cotton Reports have the same publication and P-Series numbers. / Preplant treatments for rootknot nematodes on sandy loam gave less yield response than in earlier years at the same Buckeye field location. Post emergence treatments on sandy loam at Waddell failed to give sufficient economic return even though lateral root infestation level was over 50 percent.
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