The Effects of Spray Adjuvants on the Insecticidal Activity of Success® (spinosad) on Lettuce and Melons

Persistent Link:
http://hdl.handle.net/10150/214942
Title:
The Effects of Spray Adjuvants on the Insecticidal Activity of Success® (spinosad) on Lettuce and Melons
Author:
Palumbo, John C.
Issue Date:
Aug-2002
Publisher:
College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ)
Journal:
Vegetable Report
Abstract:
Studies were conducted in the field and laboratory to investigate how the addition of spray adjuvants to Success affected its insecticidal activity against leafminers, thrips and lepidopterous larvae. Studies were also designed to evaluate the knockdown and residual mortality of Success against worms when applied with a buffer to produce an acidic spray solution. Results indicated that Success applied without an adjuvant appeared to provide the most consistent adult mortality of Liriomyza leafminers. In contrast, the addition of a penetrating surfactant (crop oil concentrate) resulted in significantly greater larval mortality consistent with the leafminer feeding behavior. Efficacy of Success against lepidopterous larvae and western flower thrips was not improved using a spray surfactant. However, addition of buffering agents to Success spray solutions significantly affected efficacy against beet armyworm and cabbage looper. Lab bioassays and field studies showed that knockdown mortality was not affected, but residual efficacy was significantly reduced when Success was applied in an acidic (pH 4.2) spray environment.
Keywords:
Agriculture -- Arizona; Vegetables -- Arizona; Vegetable -- Insects
Series/Report no.:
AZ1292; Series P-131

Full metadata record

DC FieldValue Language
dc.titleThe Effects of Spray Adjuvants on the Insecticidal Activity of Success® (spinosad) on Lettuce and Melonsen_US
dc.contributor.authorPalumbo, John C.en_US
dc.date.issued2002-08-
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 field and laboratory to investigate how the addition of spray adjuvants to Success affected its insecticidal activity against leafminers, thrips and lepidopterous larvae. Studies were also designed to evaluate the knockdown and residual mortality of Success against worms when applied with a buffer to produce an acidic spray solution. Results indicated that Success applied without an adjuvant appeared to provide the most consistent adult mortality of Liriomyza leafminers. In contrast, the addition of a penetrating surfactant (crop oil concentrate) resulted in significantly greater larval mortality consistent with the leafminer feeding behavior. Efficacy of Success against lepidopterous larvae and western flower thrips was not improved using a spray surfactant. However, addition of buffering agents to Success spray solutions significantly affected efficacy against beet armyworm and cabbage looper. Lab bioassays and field studies showed that knockdown mortality was not affected, but residual efficacy was significantly reduced when Success was applied in an acidic (pH 4.2) spray environment.en_US
dc.subjectAgriculture -- Arizonaen_US
dc.subjectVegetables -- Arizonaen_US
dc.subjectVegetable -- Insectsen_US
dc.identifier.urihttp://hdl.handle.net/10150/214942-
dc.relation.ispartofseriesAZ1292en_US
dc.relation.ispartofseriesSeries P-131en_US
All Items in UA Campus Repository are protected by copyright, with all rights reserved, unless otherwise indicated.