{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,7]],"date-time":"2026-10-07T13:36:07Z","timestamp":1791380167930,"version":"4.3.3"},"reference-count":30,"publisher":"Oxford University Press (OUP)","issue":"4","funder":[{"name":"Department of Defense Deployed War-Fighter Protection","award":["W911QY1910006"],"award-info":[{"award-number":["W911QY1910006"]}]},{"name":"Department of the Army"},{"name":"U.S. Army Contracting Command"},{"name":"Aberdeen Proving Ground"},{"name":"Natick Contracting Division"},{"name":"Northeast Regional Center for Excellence in Vector-Borne Diseases","award":["1U01CK000509"],"award-info":[{"award-number":["1U01CK000509"]}]},{"DOI":"10.13039\/100000030","name":"Centers for Disease Control and Prevention","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100000030","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2021,7,16]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Pesticide resistance in medically significant disease vectors can negatively impact the efficacy of control efforts. Resistance research on ticks has focused primarily on species of veterinary significance that experience relatively high degrees of control pressure. Resistance in tick vectors of medical significance has received little attention, in part because area-wide pesticide applications are not used to control these generalist tick species. One of the few effective methods currently used for area-wide control of medically important ticks, including Ixodes scapularis Say (Acari: Ixodidae), is deployment of 4-poster devices. Deer self-apply a topical acaricide (permethrin) while feeding on corn from the devices. A 4-poster program using permethrin has been deployed on Shelter Island, NY to control I. scapularis populations since 2008. We collected engorged female ticks from deer in this management area and a location in the Mid-Hudson River Valley, NY without area-wide tick control. Larvae were reared from egg masses and their susceptibility to permethrin was tested. Larvae originating from a long-term laboratory colony were used as a susceptible baseline for comparison. Compared against the laboratory colony, resistance ratios at LC-50 for Shelter Island and Hudson Valley I. scapularis were 1.87 and 1.51, respectively. The susceptibilities of the field populations to permethrin were significantly lower than that of the colony ticks. We provide the first data using the larval packet test to establish baseline susceptibility for I. scapularis to permethrin along with information relevant to understanding resistance emergence in tick populations under sustained control pressure from 4-poster devices.<\/jats:p>","DOI":"10.1093\/jme\/tjab054","type":"journal-article","created":{"date-parts":[[2021,4,6]],"date-time":"2021-04-06T14:07:50Z","timestamp":1617718070000},"page":"1966-1969","source":"Crossref","is-referenced-by-count":17,"title":["Susceptibility of<i>Ixodes scapularis<\/i>(Acari: Ixodidae) to Permethrin Under a Long-Term 4-Poster Deer Treatment Area on Shelter Island, NY"],"prefix":"10.1093","volume":"58","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8555-1095","authenticated-orcid":false,"given":"James C","family":"Burtis","sequence":"first","affiliation":[{"name":"Department of Entomology, Cornell University, Ithaca, NY, USA"},{"name":"Division of Vector-Borne Disease, Centers for Disease Control and Prevention, Fort Collins, CO, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Joseph D","family":"Poggi","sequence":"additional","affiliation":[{"name":"Department of Entomology, Cornell University, Ithaca, NY, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Beau","family":"Payne","sequence":"additional","affiliation":[{"name":"Shelter Island Police Department, Shelter Island, NY, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Scott R","family":"Campbell","sequence":"additional","affiliation":[{"name":"Suffolk County Department of Health Services, Yaphank, NY, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2143-2051","authenticated-orcid":false,"given":"Laura C","family":"Harrington","sequence":"additional","affiliation":[{"name":"Department of Entomology, Cornell University, Ithaca, NY, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"286","published-online":{"date-parts":[[2021,4,2]]},"reference":[{"key":"2021071619204795400_CIT0001","doi-asserted-by":"crossref","first-page":"265","DOI":"10.1093\/jee\/18.2.265a","article-title":"A method of computing the effectiveness of an insecticide","volume":"18","author":"Abbott","year":"1925","journal-title":"J. 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