Citrus Orchard Floor Management 2001: Comparison of a Disk, "Perfecta" Cultivator, and Weed Sensing Sprayer

Persistent Link:
http://hdl.handle.net/10150/223672
Title:
Citrus Orchard Floor Management 2001: Comparison of a Disk, "Perfecta" Cultivator, and Weed Sensing Sprayer
Author:
McCloskey, William B.; Wright, Glenn C.; Sumner, Christopher P.
Affiliation:
Department of Plant Sciences, University of Arizona, Tucson, Arizona; Department of Plant Sciences, Yuma Mesa Agricultural Center, University of Arizona, Yuma, Arizona; Yuma County Pest Abatement District, Yuma, Arizona
Issue Date:
Nov-2002
Publisher:
College of Agriculture, University of Arizona (Tucson, AZ)
Journal:
Citrus and Deciduous Fruit and Nut Research Report
Abstract:
Mechanical (disk and Perfecta cultivator) and chemical weed control strategies were compared in a Yuma, AZ lemon orchard. In addition, an optical weed sensing sprayer (WeedSeeker) was evaluated for making post-emergence Roundup Ultramax herbicide applications. The use of pre-emergence herbicides in conjunction with the WeedSeeker spray units has the potential to significantly reduce the amount of post-emergence herbicide and water needed to spray flood irrigated citrus orchards. There was a relationship between weed ground cover and the area sprayed by the WeedSeeker units that indicated the maximum herbicide saving will occur a low weed densities. The use of the Kawasaki Mule with its superior suspension system allowed for faster spraying speeds than were possible with the tractor mounted sprayer and this also reduced spray volume per plot. Weed control was similar for the conventional and the WeedSeeker sprayers. Future investigations will include efforts to improve the estimation of percent weed groundcover, the use of higher rates of pre-emergence herbicides and the development of crop budgets based on experimental operations.
Keywords:
Agriculture -- Arizona; Citrus fruits -- Arizona; Citrus -- Weed control
Series/Report no.:
AZ1303; Series P-133
Sponsors:
Arizona Citrus Research Council

Full metadata record

DC FieldValue Language
dc.titleCitrus Orchard Floor Management 2001: Comparison of a Disk, "Perfecta" Cultivator, and Weed Sensing Sprayeren_US
dc.contributor.authorMcCloskey, William B.en_US
dc.contributor.authorWright, Glenn C.en_US
dc.contributor.authorSumner, Christopher P.en_US
dc.contributor.departmentDepartment of Plant Sciences, University of Arizona, Tucson, Arizonaen_US
dc.contributor.departmentDepartment of Plant Sciences, Yuma Mesa Agricultural Center, University of Arizona, Yuma, Arizonaen_US
dc.contributor.departmentYuma County Pest Abatement District, Yuma, Arizonaen_US
dc.date.issued2002-11-
dc.publisherCollege of Agriculture, University of Arizona (Tucson, AZ)en_US
dc.identifier.journalCitrus and Deciduous Fruit and Nut Research Reporten_US
dc.description.abstractMechanical (disk and Perfecta cultivator) and chemical weed control strategies were compared in a Yuma, AZ lemon orchard. In addition, an optical weed sensing sprayer (WeedSeeker) was evaluated for making post-emergence Roundup Ultramax herbicide applications. The use of pre-emergence herbicides in conjunction with the WeedSeeker spray units has the potential to significantly reduce the amount of post-emergence herbicide and water needed to spray flood irrigated citrus orchards. There was a relationship between weed ground cover and the area sprayed by the WeedSeeker units that indicated the maximum herbicide saving will occur a low weed densities. The use of the Kawasaki Mule with its superior suspension system allowed for faster spraying speeds than were possible with the tractor mounted sprayer and this also reduced spray volume per plot. Weed control was similar for the conventional and the WeedSeeker sprayers. Future investigations will include efforts to improve the estimation of percent weed groundcover, the use of higher rates of pre-emergence herbicides and the development of crop budgets based on experimental operations.en_US
dc.subjectAgriculture -- Arizonaen_US
dc.subjectCitrus fruits -- Arizonaen_US
dc.subjectCitrus -- Weed controlen_US
dc.identifier.urihttp://hdl.handle.net/10150/223672-
dc.relation.ispartofseriesAZ1303en_US
dc.relation.ispartofseriesSeries P-133en_US
dc.description.sponsorshipArizona Citrus Research Councilen_US
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