Systemic Insecticide Applications at Planting and First Square in Bt Cotton for Early Season Insect Control - La Paz and Mohave Counties

Persistent Link:
http://hdl.handle.net/10150/210390
Title:
Systemic Insecticide Applications at Planting and First Square in Bt Cotton for Early Season Insect Control - La Paz and Mohave Counties
Author:
Knowles, Tim C.; Keavy, Mike; Wakimoto, Victor
Issue Date:
Apr-1998
Publisher:
College of Agriculture, University of Arizona (Tucson, AZ)
Journal:
Cotton: A College of Agriculture Report
Abstract:
Temik 15G (6 lbs/acre) and Thimet 20G (7.5 lbs/acre) granular insecticides were applied in furrow at planting and compared to an untreated check in two experiments in Parker Valley and Mohave Valley, AZ. At first square each of these main plots was split in half and either Temik 15G or DiSyston 8L was sidedressed to each subplot and compared to an untreated strip. Thrips and lygus counts were taken at weekly or biweekly intervals and plant response measured from the 2 or 3 leaf stage through layby. Under the thrips pressure experienced in these two experiments (0.5-1.5/plant), Temik and Thimet at planting provided similar and adequate protection from thrips for up to 7 weeks following application. Temik 15G sidressed at 14 lbs/acre at first square provided lygus bug control for up to 42 days following application under light lygus bug pressure (5-15/100 sweeps). Di- Syston 8L sidedressed at 1 qt/acre at first square provided lygus bug control for 35 days following application under moderate lygus bug pressure (15-20/100 sweeps). Under the conditions of this study, systemic insecticide applications at planting and first square did not increase cotton lint yields of insecticide treated Bt cotton plots, compared to the untreated control plots.
Keywords:
Agriculture -- Arizona; Cotton -- Arizona; Cotton -- Insect investigations
Series/Report no.:
AZ1006

Full metadata record

DC FieldValue Language
dc.titleSystemic Insecticide Applications at Planting and First Square in Bt Cotton for Early Season Insect Control - La Paz and Mohave Countiesen_US
dc.contributor.authorKnowles, Tim C.en_US
dc.contributor.authorKeavy, Mikeen_US
dc.contributor.authorWakimoto, Victoren_US
dc.date.issued1998-04-
dc.publisherCollege of Agriculture, University of Arizona (Tucson, AZ)en_US
dc.identifier.journalCotton: A College of Agriculture Reporten_US
dc.description.abstractTemik 15G (6 lbs/acre) and Thimet 20G (7.5 lbs/acre) granular insecticides were applied in furrow at planting and compared to an untreated check in two experiments in Parker Valley and Mohave Valley, AZ. At first square each of these main plots was split in half and either Temik 15G or DiSyston 8L was sidedressed to each subplot and compared to an untreated strip. Thrips and lygus counts were taken at weekly or biweekly intervals and plant response measured from the 2 or 3 leaf stage through layby. Under the thrips pressure experienced in these two experiments (0.5-1.5/plant), Temik and Thimet at planting provided similar and adequate protection from thrips for up to 7 weeks following application. Temik 15G sidressed at 14 lbs/acre at first square provided lygus bug control for up to 42 days following application under light lygus bug pressure (5-15/100 sweeps). Di- Syston 8L sidedressed at 1 qt/acre at first square provided lygus bug control for 35 days following application under moderate lygus bug pressure (15-20/100 sweeps). Under the conditions of this study, systemic insecticide applications at planting and first square did not increase cotton lint yields of insecticide treated Bt cotton plots, compared to the untreated control plots.en_US
dc.subjectAgriculture -- Arizonaen_US
dc.subjectCotton -- Arizonaen_US
dc.subjectCotton -- Insect investigationsen_US
dc.identifier.urihttp://hdl.handle.net/10150/210390-
dc.relation.ispartofseriesAZ1006en_US
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