Loading…
Activity and Residues of Imidacloprid Applied to Soil and Tree Trunks to Control Hemlock Woolly Adelgid (Hemiptera: Adelgidae) in Forests
We studied imidacloprid application methods and timing to control the hemlock woolly adelgid, Adelges tsugae Annand (Hemiptera: Adelgidae), in forests. The methods compared were 1) soil injection near the trunk; 2) soil injection dispersed throughout the area under the canopy; 3) soil drench near th...
Saved in:
Published in: | Journal of economic entomology 2006-08, Vol.99 (4), p.1258-1267 |
---|---|
Main Authors: | , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that cite this one |
Online Access: | Get full text |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
cited_by | cdi_FETCH-LOGICAL-b400t-b42739ed5c3a2b316812e0891d70068caa190f92ee42759e382846d2b2b0b5c23 |
---|---|
cites | |
container_end_page | 1267 |
container_issue | 4 |
container_start_page | 1258 |
container_title | Journal of economic entomology |
container_volume | 99 |
creator | Cowles, R. S. Montgomery, M. E. Cheah, C. A S-J. |
description | We studied imidacloprid application methods and timing to control the hemlock woolly adelgid, Adelges tsugae Annand (Hemiptera: Adelgidae), in forests. The methods compared were 1) soil injection near the trunk; 2) soil injection dispersed throughout the area under the canopy; 3) soil drench near the base of the trunk; and trunk injection with the 4) Arborjet, 5) Wedgle, and 6) Mauget systems. The applications were made in the fall and the following spring. Adelgid populations on the hemlocks (Tsuga spp.) were assessed in the fall of two successive years after the treatments. Relative to the untreated control trees, all the soil applications resulted in population reductions, but none of the trunk injections resulted in reductions. Fall and spring treatment efficacy did not differ. Reductions by the soil treatments were between 50 and 100% (avg 80%) by the first fall and 83–100% (avg 98.5%) by the second fall. Analysis of imidacloprid residues using enzyme-linked immunosorbent assay found residues in sap, needles, and twigs 1 mo to 3-yr after application. A laboratory dose–response bioassay using excised, adelgid-infested hemlock branches with cut ends immersed in serial dilutions of imidacloprid determined the LC50 value to be 300 ppb, based on an exposure of 20 d. A high degree of suppression of the adelgid on forest trees was associated with residues in hemlock tissue >120 ppb 2 yr after soil treatment. Although precise relationships between residues and efficacy are elusive, it is clear that soil application of imidacloprid resulted in chronic residues of imidacloprid in tissues and suppression of adelgid populations for >2 yr. |
doi_str_mv | 10.1603/0022-0493-99.4.1258 |
format | article |
fullrecord | <record><control><sourceid>pubmed_pasca</sourceid><recordid>TN_cdi_pubmed_primary_16937680</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>16937680</sourcerecordid><originalsourceid>FETCH-LOGICAL-b400t-b42739ed5c3a2b316812e0891d70068caa190f92ee42759e382846d2b2b0b5c23</originalsourceid><addsrcrecordid>eNpF0VFr2zAQB3AxNta02ycYdHoZtA_OTpLtSH0LoWkLhcHasL0J2ToHtYplLGeQj9BvXXlJ2pcTnH4cOv0J-cZgykoQPwE4zyBXIlNqmk8ZL-QHMmFKyIwr9vcjmbyJE3Ia4xMAKzmDz-SElUrMSgkT8jKvB_fPDTtqWkt_Y3R2i5GGht5tnDW1D13vLJ13nXdo6RDoQ3D-P37sEVPZts9x7C9CO_TB01vc-FA_0z8heL-jc4t-nSZcpL7rBuzN1bFn8JK6li5Dj3GIX8inxviIXw_nGVktrx8Xt9n9r5u7xfw-q3KAIVU-EwptUQvDK8FKyTiCVMzOAEpZG8MUNIojJlgoFJLLvLS84hVURc3FGTnfz-221QatTvttTL_Txz9J4McBmFgb3_SmrV18dxIYCFkk933vGhO0WffJrB44MJHulUyPSYLtReVCaPF9BOgxQT3mo8d8tFI612OC4hV_moiw</addsrcrecordid><sourcetype>Index Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>Activity and Residues of Imidacloprid Applied to Soil and Tree Trunks to Control Hemlock Woolly Adelgid (Hemiptera: Adelgidae) in Forests</title><source>Oxford Journals Online</source><creator>Cowles, R. S. ; Montgomery, M. E. ; Cheah, C. A S-J.</creator><creatorcontrib>Cowles, R. S. ; Montgomery, M. E. ; Cheah, C. A S-J.</creatorcontrib><description>We studied imidacloprid application methods and timing to control the hemlock woolly adelgid, Adelges tsugae Annand (Hemiptera: Adelgidae), in forests. The methods compared were 1) soil injection near the trunk; 2) soil injection dispersed throughout the area under the canopy; 3) soil drench near the base of the trunk; and trunk injection with the 4) Arborjet, 5) Wedgle, and 6) Mauget systems. The applications were made in the fall and the following spring. Adelgid populations on the hemlocks (Tsuga spp.) were assessed in the fall of two successive years after the treatments. Relative to the untreated control trees, all the soil applications resulted in population reductions, but none of the trunk injections resulted in reductions. Fall and spring treatment efficacy did not differ. Reductions by the soil treatments were between 50 and 100% (avg 80%) by the first fall and 83–100% (avg 98.5%) by the second fall. Analysis of imidacloprid residues using enzyme-linked immunosorbent assay found residues in sap, needles, and twigs 1 mo to 3-yr after application. A laboratory dose–response bioassay using excised, adelgid-infested hemlock branches with cut ends immersed in serial dilutions of imidacloprid determined the LC50 value to be 300 ppb, based on an exposure of 20 d. A high degree of suppression of the adelgid on forest trees was associated with residues in hemlock tissue >120 ppb 2 yr after soil treatment. Although precise relationships between residues and efficacy are elusive, it is clear that soil application of imidacloprid resulted in chronic residues of imidacloprid in tissues and suppression of adelgid populations for >2 yr.</description><identifier>ISSN: 0022-0493</identifier><identifier>EISSN: 1938-291X</identifier><identifier>DOI: 10.1603/0022-0493-99.4.1258</identifier><identifier>PMID: 16937680</identifier><identifier>CODEN: JEENAI</identifier><language>eng</language><publisher>Lanham, MD: Entomological Society of America</publisher><subject>Adelges tsugae ; Animals ; application timing ; Biological and medical sciences ; Control ; Dose-Response Relationship, Drug ; FOREST ENTOMOLOGY ; Forestry ; Fundamental and applied biological sciences. Psychology ; General forest ecology ; Generalities ; Generalities. Production, biomass. Quality of wood and forest products. General forest ecology ; Hemiptera ; imidacloprid ; Imidazoles - administration & dosage ; Imidazoles - pharmacokinetics ; insect control ; insecticide ; insecticide residues ; Insecticides - administration & dosage ; Insecticides - pharmacokinetics ; lethal dose 50 ; Neonicotinoids ; Nitro Compounds ; pesticide formulations ; pesticide persistence ; Pesticide Residues - pharmacokinetics ; Phytopathology. Animal pests. Plant and forest protection ; Population Density ; Protozoa. Invertebrates ; Soil ; soil drenching ; soil injection ; systemic ; tree injection ; tree trunk ; trunk injection ; Tsuga ; Tsuga - metabolism ; Tsuga - parasitology</subject><ispartof>Journal of economic entomology, 2006-08, Vol.99 (4), p.1258-1267</ispartof><rights>Entomological Society of America</rights><rights>2006 INIST-CNRS</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-b400t-b42739ed5c3a2b316812e0891d70068caa190f92ee42759e382846d2b2b0b5c23</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=18010385$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/16937680$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Cowles, R. S.</creatorcontrib><creatorcontrib>Montgomery, M. E.</creatorcontrib><creatorcontrib>Cheah, C. A S-J.</creatorcontrib><title>Activity and Residues of Imidacloprid Applied to Soil and Tree Trunks to Control Hemlock Woolly Adelgid (Hemiptera: Adelgidae) in Forests</title><title>Journal of economic entomology</title><addtitle>J Econ Entomol</addtitle><description>We studied imidacloprid application methods and timing to control the hemlock woolly adelgid, Adelges tsugae Annand (Hemiptera: Adelgidae), in forests. The methods compared were 1) soil injection near the trunk; 2) soil injection dispersed throughout the area under the canopy; 3) soil drench near the base of the trunk; and trunk injection with the 4) Arborjet, 5) Wedgle, and 6) Mauget systems. The applications were made in the fall and the following spring. Adelgid populations on the hemlocks (Tsuga spp.) were assessed in the fall of two successive years after the treatments. Relative to the untreated control trees, all the soil applications resulted in population reductions, but none of the trunk injections resulted in reductions. Fall and spring treatment efficacy did not differ. Reductions by the soil treatments were between 50 and 100% (avg 80%) by the first fall and 83–100% (avg 98.5%) by the second fall. Analysis of imidacloprid residues using enzyme-linked immunosorbent assay found residues in sap, needles, and twigs 1 mo to 3-yr after application. A laboratory dose–response bioassay using excised, adelgid-infested hemlock branches with cut ends immersed in serial dilutions of imidacloprid determined the LC50 value to be 300 ppb, based on an exposure of 20 d. A high degree of suppression of the adelgid on forest trees was associated with residues in hemlock tissue >120 ppb 2 yr after soil treatment. Although precise relationships between residues and efficacy are elusive, it is clear that soil application of imidacloprid resulted in chronic residues of imidacloprid in tissues and suppression of adelgid populations for >2 yr.</description><subject>Adelges tsugae</subject><subject>Animals</subject><subject>application timing</subject><subject>Biological and medical sciences</subject><subject>Control</subject><subject>Dose-Response Relationship, Drug</subject><subject>FOREST ENTOMOLOGY</subject><subject>Forestry</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>General forest ecology</subject><subject>Generalities</subject><subject>Generalities. Production, biomass. Quality of wood and forest products. General forest ecology</subject><subject>Hemiptera</subject><subject>imidacloprid</subject><subject>Imidazoles - administration & dosage</subject><subject>Imidazoles - pharmacokinetics</subject><subject>insect control</subject><subject>insecticide</subject><subject>insecticide residues</subject><subject>Insecticides - administration & dosage</subject><subject>Insecticides - pharmacokinetics</subject><subject>lethal dose 50</subject><subject>Neonicotinoids</subject><subject>Nitro Compounds</subject><subject>pesticide formulations</subject><subject>pesticide persistence</subject><subject>Pesticide Residues - pharmacokinetics</subject><subject>Phytopathology. Animal pests. Plant and forest protection</subject><subject>Population Density</subject><subject>Protozoa. Invertebrates</subject><subject>Soil</subject><subject>soil drenching</subject><subject>soil injection</subject><subject>systemic</subject><subject>tree injection</subject><subject>tree trunk</subject><subject>trunk injection</subject><subject>Tsuga</subject><subject>Tsuga - metabolism</subject><subject>Tsuga - parasitology</subject><issn>0022-0493</issn><issn>1938-291X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><recordid>eNpF0VFr2zAQB3AxNta02ycYdHoZtA_OTpLtSH0LoWkLhcHasL0J2ToHtYplLGeQj9BvXXlJ2pcTnH4cOv0J-cZgykoQPwE4zyBXIlNqmk8ZL-QHMmFKyIwr9vcjmbyJE3Ia4xMAKzmDz-SElUrMSgkT8jKvB_fPDTtqWkt_Y3R2i5GGht5tnDW1D13vLJ13nXdo6RDoQ3D-P37sEVPZts9x7C9CO_TB01vc-FA_0z8heL-jc4t-nSZcpL7rBuzN1bFn8JK6li5Dj3GIX8inxviIXw_nGVktrx8Xt9n9r5u7xfw-q3KAIVU-EwptUQvDK8FKyTiCVMzOAEpZG8MUNIojJlgoFJLLvLS84hVURc3FGTnfz-221QatTvttTL_Txz9J4McBmFgb3_SmrV18dxIYCFkk933vGhO0WffJrB44MJHulUyPSYLtReVCaPF9BOgxQT3mo8d8tFI612OC4hV_moiw</recordid><startdate>20060801</startdate><enddate>20060801</enddate><creator>Cowles, R. S.</creator><creator>Montgomery, M. E.</creator><creator>Cheah, C. A S-J.</creator><general>Entomological Society of America</general><scope>FBQ</scope><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope></search><sort><creationdate>20060801</creationdate><title>Activity and Residues of Imidacloprid Applied to Soil and Tree Trunks to Control Hemlock Woolly Adelgid (Hemiptera: Adelgidae) in Forests</title><author>Cowles, R. S. ; Montgomery, M. E. ; Cheah, C. A S-J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-b400t-b42739ed5c3a2b316812e0891d70068caa190f92ee42759e382846d2b2b0b5c23</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><topic>Adelges tsugae</topic><topic>Animals</topic><topic>application timing</topic><topic>Biological and medical sciences</topic><topic>Control</topic><topic>Dose-Response Relationship, Drug</topic><topic>FOREST ENTOMOLOGY</topic><topic>Forestry</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>General forest ecology</topic><topic>Generalities</topic><topic>Generalities. Production, biomass. Quality of wood and forest products. General forest ecology</topic><topic>Hemiptera</topic><topic>imidacloprid</topic><topic>Imidazoles - administration & dosage</topic><topic>Imidazoles - pharmacokinetics</topic><topic>insect control</topic><topic>insecticide</topic><topic>insecticide residues</topic><topic>Insecticides - administration & dosage</topic><topic>Insecticides - pharmacokinetics</topic><topic>lethal dose 50</topic><topic>Neonicotinoids</topic><topic>Nitro Compounds</topic><topic>pesticide formulations</topic><topic>pesticide persistence</topic><topic>Pesticide Residues - pharmacokinetics</topic><topic>Phytopathology. Animal pests. Plant and forest protection</topic><topic>Population Density</topic><topic>Protozoa. Invertebrates</topic><topic>Soil</topic><topic>soil drenching</topic><topic>soil injection</topic><topic>systemic</topic><topic>tree injection</topic><topic>tree trunk</topic><topic>trunk injection</topic><topic>Tsuga</topic><topic>Tsuga - metabolism</topic><topic>Tsuga - parasitology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Cowles, R. S.</creatorcontrib><creatorcontrib>Montgomery, M. E.</creatorcontrib><creatorcontrib>Cheah, C. A S-J.</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><jtitle>Journal of economic entomology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Cowles, R. S.</au><au>Montgomery, M. E.</au><au>Cheah, C. A S-J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Activity and Residues of Imidacloprid Applied to Soil and Tree Trunks to Control Hemlock Woolly Adelgid (Hemiptera: Adelgidae) in Forests</atitle><jtitle>Journal of economic entomology</jtitle><addtitle>J Econ Entomol</addtitle><date>2006-08-01</date><risdate>2006</risdate><volume>99</volume><issue>4</issue><spage>1258</spage><epage>1267</epage><pages>1258-1267</pages><issn>0022-0493</issn><eissn>1938-291X</eissn><coden>JEENAI</coden><abstract>We studied imidacloprid application methods and timing to control the hemlock woolly adelgid, Adelges tsugae Annand (Hemiptera: Adelgidae), in forests. The methods compared were 1) soil injection near the trunk; 2) soil injection dispersed throughout the area under the canopy; 3) soil drench near the base of the trunk; and trunk injection with the 4) Arborjet, 5) Wedgle, and 6) Mauget systems. The applications were made in the fall and the following spring. Adelgid populations on the hemlocks (Tsuga spp.) were assessed in the fall of two successive years after the treatments. Relative to the untreated control trees, all the soil applications resulted in population reductions, but none of the trunk injections resulted in reductions. Fall and spring treatment efficacy did not differ. Reductions by the soil treatments were between 50 and 100% (avg 80%) by the first fall and 83–100% (avg 98.5%) by the second fall. Analysis of imidacloprid residues using enzyme-linked immunosorbent assay found residues in sap, needles, and twigs 1 mo to 3-yr after application. A laboratory dose–response bioassay using excised, adelgid-infested hemlock branches with cut ends immersed in serial dilutions of imidacloprid determined the LC50 value to be 300 ppb, based on an exposure of 20 d. A high degree of suppression of the adelgid on forest trees was associated with residues in hemlock tissue >120 ppb 2 yr after soil treatment. Although precise relationships between residues and efficacy are elusive, it is clear that soil application of imidacloprid resulted in chronic residues of imidacloprid in tissues and suppression of adelgid populations for >2 yr.</abstract><cop>Lanham, MD</cop><pub>Entomological Society of America</pub><pmid>16937680</pmid><doi>10.1603/0022-0493-99.4.1258</doi><tpages>10</tpages><oa>free_for_read</oa></addata></record> |
fulltext | fulltext |
identifier | ISSN: 0022-0493 |
ispartof | Journal of economic entomology, 2006-08, Vol.99 (4), p.1258-1267 |
issn | 0022-0493 1938-291X |
language | eng |
recordid | cdi_pubmed_primary_16937680 |
source | Oxford Journals Online |
subjects | Adelges tsugae Animals application timing Biological and medical sciences Control Dose-Response Relationship, Drug FOREST ENTOMOLOGY Forestry Fundamental and applied biological sciences. Psychology General forest ecology Generalities Generalities. Production, biomass. Quality of wood and forest products. General forest ecology Hemiptera imidacloprid Imidazoles - administration & dosage Imidazoles - pharmacokinetics insect control insecticide insecticide residues Insecticides - administration & dosage Insecticides - pharmacokinetics lethal dose 50 Neonicotinoids Nitro Compounds pesticide formulations pesticide persistence Pesticide Residues - pharmacokinetics Phytopathology. Animal pests. Plant and forest protection Population Density Protozoa. Invertebrates Soil soil drenching soil injection systemic tree injection tree trunk trunk injection Tsuga Tsuga - metabolism Tsuga - parasitology |
title | Activity and Residues of Imidacloprid Applied to Soil and Tree Trunks to Control Hemlock Woolly Adelgid (Hemiptera: Adelgidae) in Forests |
url | http://sfxeu10.hosted.exlibrisgroup.com/loughborough?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-03T17%3A56%3A25IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-pubmed_pasca&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Activity%20and%20Residues%20of%20Imidacloprid%20Applied%20to%20Soil%20and%20Tree%20Trunks%20to%20Control%20Hemlock%20Woolly%20Adelgid%20(Hemiptera:%20Adelgidae)%20in%20Forests&rft.jtitle=Journal%20of%20economic%20entomology&rft.au=Cowles,%20R.%20S.&rft.date=2006-08-01&rft.volume=99&rft.issue=4&rft.spage=1258&rft.epage=1267&rft.pages=1258-1267&rft.issn=0022-0493&rft.eissn=1938-291X&rft.coden=JEENAI&rft_id=info:doi/10.1603/0022-0493-99.4.1258&rft_dat=%3Cpubmed_pasca%3E16937680%3C/pubmed_pasca%3E%3Cgrp_id%3Ecdi_FETCH-LOGICAL-b400t-b42739ed5c3a2b316812e0891d70068caa190f92ee42759e382846d2b2b0b5c23%3C/grp_id%3E%3Coa%3E%3C/oa%3E%3Curl%3E%3C/url%3E&rft_id=info:oai/&rft_id=info:pmid/16937680&rfr_iscdi=true |