Persistent Link:
http://hdl.handle.net/10150/214912
Title:
Interactions Between Insecticides, Spray pH, & Adjuvants
Author:
Palumbo, John C.; Reyes, F. J.; Carey, L.; Amaya, A.; Ledesma, L.
Affiliation:
Department of Entomology, Yuma Valley Agricultural Center
Issue Date:
Aug-2001
Publisher:
College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ)
Journal:
Vegetable Report
Abstract:
Studies were conducted in the laboratory to investigate how the addition of a insecticides to two sources of Colorado River water would effect the pH of spray mixtures. In addition, we were curious what the effects of various labeled concentrations of buffers, acidifiers, spreader/stickers, and foliar nutrient sprays would have on the pH of spray water. Results showed that in most cases, spray concentration remained alkaline following addition of insecticides and adjuvants, with variations occurring primarily for the OPs. Buffering agents dramatically lowed pH at concentration greater than 0.25% v/v. Studies were also designed to evaluate the knockdown and residual mortality of Success against worms when applied in an acidic spray solution. Bioassays of larval mortality on field-treated foliage showed that knockdown mortality was not affected, but residual efficacy was significantly reduced when Success was applied using acidic (pH 4.2) spray solutions.
Keywords:
Agriculture -- Arizona; Vegetables -- Arizona; Vegetables -- Insects
Series/Report no.:
AZ1252; Series P-127

Full metadata record

DC FieldValue Language
dc.titleInteractions Between Insecticides, Spray pH, & Adjuvantsen_US
dc.contributor.authorPalumbo, John C.en_US
dc.contributor.authorReyes, F. J.en_US
dc.contributor.authorCarey, L.en_US
dc.contributor.authorAmaya, A.en_US
dc.contributor.authorLedesma, L.en_US
dc.contributor.departmentDepartment of Entomology, Yuma Valley Agricultural Centeren_US
dc.date.issued2001-08-
dc.publisherCollege of Agriculture and Life Sciences, University of Arizona (Tucson, AZ)en_US
dc.identifier.journalVegetable Reporten_US
dc.description.abstractStudies were conducted in the laboratory to investigate how the addition of a insecticides to two sources of Colorado River water would effect the pH of spray mixtures. In addition, we were curious what the effects of various labeled concentrations of buffers, acidifiers, spreader/stickers, and foliar nutrient sprays would have on the pH of spray water. Results showed that in most cases, spray concentration remained alkaline following addition of insecticides and adjuvants, with variations occurring primarily for the OPs. Buffering agents dramatically lowed pH at concentration greater than 0.25% v/v. Studies were also designed to evaluate the knockdown and residual mortality of Success against worms when applied in an acidic spray solution. Bioassays of larval mortality on field-treated foliage showed that knockdown mortality was not affected, but residual efficacy was significantly reduced when Success was applied using acidic (pH 4.2) spray solutions.en_US
dc.subjectAgriculture -- Arizonaen_US
dc.subjectVegetables -- Arizonaen_US
dc.subjectVegetables -- Insectsen_US
dc.identifier.urihttp://hdl.handle.net/10150/214912-
dc.relation.ispartofseriesAZ1252en_US
dc.relation.ispartofseriesSeries P-127en_US
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