Persistent Link:
http://hdl.handle.net/10150/222511
Title:
Residual activity of insecticides to citrus thrips on lemon foliage
Author:
Kerns, David L.; Tellez, Tony
Issue Date:
Nov-1999
Publisher:
College of Agriculture, University of Arizona (Tucson, AZ)
Journal:
Citrus and Deciduous Fruit and Nut Research Report
Abstract:
The residual activity of insecticides to second instar citrus thrips was measured on lemon foliage in 1998. In April, Dimethoate and Agri-Mek provided only knockdown control of thrips, dropping to <70% mortality by 3 days after treatment (DAT). Baythroid performed slightly better, providing 95% mortality 3 DAT, but by 7 DAT was giving about 74% mortality. Alert, Carzol, Success and AZEXP-2 provided the longest residual activity, lasting 7 days, but began to slip at 14 DAT. AZEXP-1 induced only 74% 0 DAT. Although, residual activity in general was greater in June than April, however this increase in residual activity did not necessarily increase the length of commercially acceptable residual. Agri-Mek and Dimethoate still only provided knockdown activity, and Baythroid was still giving 3 days of good activity. AZEXP-1 performed much better following the June application relative to the April application, providing 3 days of adequate activity. Although we are not certain the reason for this result, it maybe due to the adsorption properties of this chemical relative to leaf physiology. Alert performed similarly in June and April, and Carzol, Success and AZEXP-2 each lasted about 1 week longer.
Keywords:
Agriculture -- Arizona; Citrus fruits -- Arizona; Lemon -- Arizona; Lemon -- Insects
Series/Report no.:
AZ1138; Series P-117
Sponsors:
Arizona Citrus Research Council

Full metadata record

DC FieldValue Language
dc.titleResidual activity of insecticides to citrus thrips on lemon foliageen_US
dc.contributor.authorKerns, David L.en_US
dc.contributor.authorTellez, Tonyen_US
dc.date.issued1999-11-
dc.publisherCollege of Agriculture, University of Arizona (Tucson, AZ)en_US
dc.identifier.journalCitrus and Deciduous Fruit and Nut Research Reporten_US
dc.description.abstractThe residual activity of insecticides to second instar citrus thrips was measured on lemon foliage in 1998. In April, Dimethoate and Agri-Mek provided only knockdown control of thrips, dropping to <70% mortality by 3 days after treatment (DAT). Baythroid performed slightly better, providing 95% mortality 3 DAT, but by 7 DAT was giving about 74% mortality. Alert, Carzol, Success and AZEXP-2 provided the longest residual activity, lasting 7 days, but began to slip at 14 DAT. AZEXP-1 induced only 74% 0 DAT. Although, residual activity in general was greater in June than April, however this increase in residual activity did not necessarily increase the length of commercially acceptable residual. Agri-Mek and Dimethoate still only provided knockdown activity, and Baythroid was still giving 3 days of good activity. AZEXP-1 performed much better following the June application relative to the April application, providing 3 days of adequate activity. Although we are not certain the reason for this result, it maybe due to the adsorption properties of this chemical relative to leaf physiology. Alert performed similarly in June and April, and Carzol, Success and AZEXP-2 each lasted about 1 week longer.en_US
dc.subjectAgriculture -- Arizonaen_US
dc.subjectCitrus fruits -- Arizonaen_US
dc.subjectLemon -- Arizonaen_US
dc.subjectLemon -- Insectsen_US
dc.identifier.urihttp://hdl.handle.net/10150/222511-
dc.relation.ispartofseriesAZ1138en_US
dc.relation.ispartofseriesSeries P-117en_US
dc.description.sponsorshipArizona Citrus Research Councilen_US
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