{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,4]],"date-time":"2026-03-04T22:38:40Z","timestamp":1772663920239,"version":"3.50.1"},"reference-count":23,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2009,8,14]],"date-time":"2009-08-14T00:00:00Z","timestamp":1250208000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["scijournals.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Pest Management Science"],"published-print":{"date-parts":[[2010,1]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p><jats:bold>BACKGROUND:<\/jats:bold> The pyrethroid insecticide etofenprox is of current interest to rice farmers in the Sacramento Valley owing to its effectiveness against the rice water weevil, <jats:italic>Lissorhoptrus oryzophilus<\/jats:italic> Kuschel. This study aimed to describe the partitioning of etofenprox under simulated rice field conditions by determining its Henry's law constant (<jats:italic>H<\/jats:italic>) (an estimate of volatilization) and organic carbon\u2010normalized soil\u2013water distribution coefficient (<jats:italic>K<\/jats:italic><jats:sub>oc<\/jats:sub>) at representative field temperatures. A comparison of etofenprox and \u03bb\u2010cyhalothrin is presented using a level\u20101 fugacity model.<\/jats:p><jats:p><jats:bold>RESULTS:<\/jats:bold> Experimental determination of <jats:italic>H<\/jats:italic> revealed that etofenprox partitioned onto the apparatus walls and did not significantly volatilize; the maximum value of <jats:italic>H<\/jats:italic> was estimated to be 6.81 \u00d7 10<jats:sup>\u22121<\/jats:sup> Pa m<jats:sup>3<\/jats:sup> mol<jats:sup>\u22121<\/jats:sup> at 25 \u00b0C, based on its air and water method detection limits. Calculated values for <jats:italic>H<\/jats:italic> ranged from 5.6 \u00d7 10<jats:sup>\u22123<\/jats:sup> Pa m<jats:sup>3<\/jats:sup> mol<jats:sup>\u22121<\/jats:sup> at 5 \u00b0C to 2.9 \u00d7 10<jats:sup>\u22121<\/jats:sup> Pa m<jats:sup>3<\/jats:sup> mol<jats:sup>\u22121<\/jats:sup> at 40 \u00b0C, based on estimated solubility and vapor pressure values at various temperatures. Log <jats:italic>K<\/jats:italic><jats:sub>oc<\/jats:sub> values (at 25 \u00b0C) were experimentally determined to be 6.0 and 6.4 for Princeton and Richvale rice field soils, respectively, and were very similar to the values for other pyrethroids. Finally, temperature appears to have little influence on etofenprox sorption, as the log <jats:italic>K<\/jats:italic><jats:sub>oc<\/jats:sub> for the Princeton soil at 35 \u00b0C was 6.1.<\/jats:p><jats:p><jats:bold>CONCLUSION:<\/jats:bold> High sorption coefficients and relatively insignificant desorption and volatilization of etofenprox suggest that its insolubility drives it to partition from water by sorbing to soils with high affinity. Offsite movement is unlikely unless transported in a bound state on suspended sediments. Copyright \u00a9 2009 Society of Chemical Industry<\/jats:p>","DOI":"10.1002\/ps.1826","type":"journal-article","created":{"date-parts":[[2009,8,14]],"date-time":"2009-08-14T05:12:39Z","timestamp":1250226759000},"page":"28-34","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Partitioning of etofenprox under simulated California rice\u2010growing conditions"],"prefix":"10.1002","volume":"66","author":[{"given":"Martice E","family":"Vasquez","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Amrith S","family":"Gunasekara","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Thomas M","family":"Cahill","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ronald S","family":"Tjeerdema","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2009,8,14]]},"reference":[{"key":"e_1_2_6_2_2","unstructured":"Report of the Joint Meeting of the FAO Panel of Experts on Pesticide Residues in Food and the Environment World Health Organization Geneva Switzerland 20\u201329 September pp.357\u2013381(1993)."},{"key":"e_1_2_6_3_2","first-page":"54922","article-title":"Etofenprox; Pesticide tolerances for emergency exemptions","volume":"71","author":"US Environmental Protection Agency","year":"2006","journal-title":"Fed Regist"},{"key":"e_1_2_6_4_2","unstructured":"OrosDRandWernerI Pyrethroid insecticides: an analysis of use patterns distributions potential toxicity and fate in the Sacramento\u2013San Joaquin Delta and Central Valley. White Paper for the Interagency Ecological Program SFEI Contribution 415 San Francisco Estuary Institute Oakland CA (2005)."},{"key":"e_1_2_6_5_2","unstructured":"California Department of Pesticide Regulation Summary of pesticide use report data 2006 indexed by commodity California Environmental Protection Agency Sacramento CA pp.304\u2013306(2007)."},{"key":"e_1_2_6_6_2","first-page":"965","article-title":"Risk assessment of etofenprox (Vectron\u00ae) on non\u2010target aquatic fauna compared with other pesticides used as Simulium larvacide in a tropical environment","volume":"42","author":"Yam\u00e9ogo L","year":"2001","journal-title":"J Agric Food Chem"},{"key":"e_1_2_6_7_2","doi-asserted-by":"publisher","DOI":"10.1021\/es0352193"},{"key":"e_1_2_6_8_2","doi-asserted-by":"publisher","DOI":"10.1002\/ps.948"},{"key":"e_1_2_6_9_2","unstructured":"ReedWR Soil survey of Colusa County California USDA Natural Resource Conservation Service Washington DC (1998)."},{"key":"e_1_2_6_10_2","unstructured":"BurkettDWandConlinAE Soil survey of Butte area California parts of Butte and Plumas counties USDA Natural Resource Conservation Service Washington DC (2001)."},{"key":"e_1_2_6_11_2","doi-asserted-by":"publisher","DOI":"10.1021\/je050308b"},{"key":"e_1_2_6_12_2","doi-asserted-by":"publisher","DOI":"10.1021\/ci00019a016"},{"key":"e_1_2_6_13_2","first-page":"121","volume-title":"Environmental Organic Chemistry","author":"Schwarzenbach RP","year":"2003"},{"key":"e_1_2_6_14_2","doi-asserted-by":"publisher","DOI":"10.1016\/0045-6535(95)00026-5"},{"key":"e_1_2_6_15_2","doi-asserted-by":"publisher","DOI":"10.1016\/0043-1354(94)00240-8"},{"key":"e_1_2_6_16_2","doi-asserted-by":"publisher","DOI":"10.1201\/9781420032543"},{"key":"e_1_2_6_16_3","unstructured":"Level 1 Model Version 3.00. [Online]. Available:http:\/\/www.trentu.ca\/academic\/aminss\/envmodel\/welcome.html[September 2004]."},{"key":"e_1_2_6_17_2","doi-asserted-by":"publisher","DOI":"10.1021\/es00157a003"},{"key":"e_1_2_6_18_2","doi-asserted-by":"publisher","DOI":"10.1021\/es00081a010"},{"key":"e_1_2_6_19_2","first-page":"607","volume-title":"CREAMS. A Field Scale Model for Chemicals Runoff and Erosion from Agricultural Management Systems. USDA Conservation Research Report 26.","author":"Pionke HB","year":"1980"},{"key":"e_1_2_6_20_2","unstructured":"Pesticide Section 18 Exemption Trebon on Rice.[Online]. Pesticide Programs Division Texas Department of Agriculture (2006). Available:http:\/\/www.agr.state.tx.us\/agr\/main_render\/0 1968 1848_5588_15087_0 00.html?channel=5588[30 July 2009]."},{"key":"e_1_2_6_21_2","unstructured":"Etofenprox data sheet MSDS #62141E Mitsui Chemicals Inc. Tokyo Japan (2005)."},{"key":"e_1_2_6_22_2","first-page":"418","volume-title":"The Pesticide Manual","author":"Tomlin CDS","year":"2006"},{"key":"e_1_2_6_23_2","doi-asserted-by":"publisher","DOI":"10.1007\/978-1-4757-4260-2_3"}],"container-title":["Pest Management Science"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1002%2Fps.1826","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1002%2Fps.1826","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/scijournals.onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/ps.1826","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,21]],"date-time":"2025-10-21T16:10:08Z","timestamp":1761063008000},"score":1,"resource":{"primary":{"URL":"https:\/\/scijournals.onlinelibrary.wiley.com\/doi\/10.1002\/ps.1826"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2009,8,14]]},"references-count":23,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2010,1]]}},"alternative-id":["10.1002\/ps.1826"],"URL":"https:\/\/doi.org\/10.1002\/ps.1826","archive":["Portico"],"relation":{},"ISSN":["1526-498X","1526-4998"],"issn-type":[{"value":"1526-498X","type":"print"},{"value":"1526-4998","type":"electronic"}],"subject":[],"published":{"date-parts":[[2009,8,14]]},"assertion":[{"value":"2009-02-05","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2009-06-17","order":2,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2009-08-14","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}