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The two dust treatments were 100% effective against larvae and nymphs within 24 h after contact occurred by immersion in dry dusts and after crawling across a surface treated with the dry dusts. Contact by crawling on a dried aqueous film of the dusts, even at a concentration of 10%, was not as effective as exposure to the dusts in dry powder form. As has been demonstrated with CimeXa, it is likely that Deadzone will be capable of providing prophylactic protection of cattle from economically important one-host ixodids, such as the southern cattle fever tick, Rhipicephalus microplus (Canestrini), which vectors the causal agents of babesiosis. Diatomaceous earth can be stored indefinitely, will remain efficacious for as long as sufficient quantities remain on the substrate, it is a natural (organic) substance, and it might be amenable for limited use in environmentally protected habitats.<\/jats:p>","DOI":"10.1093\/jme\/tjaa082","type":"journal-article","created":{"date-parts":[[2020,4,25]],"date-time":"2020-04-25T06:05:50Z","timestamp":1587794750000},"page":"1575-1581","source":"Crossref","is-referenced-by-count":14,"title":["Lethal Effects of a Commercial Diatomaceous Earth Dust Product on Amblyomma americanum (Ixodida: Ixodidae) Larvae and Nymphs"],"prefix":"10.1093","volume":"57","author":[{"given":"Allan T","family":"Showler","sequence":"first","affiliation":[{"name":"USDA-ARS, Knipling-Bushland U.S. Livestock Insects Research Laboratory, Kerrville, TX"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Nicole","family":"Flores","sequence":"additional","affiliation":[{"name":"Department of Science, Schreiner University, 2100 Memorial Blvd, Kerrville, TX"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ryan M","family":"Caesar","sequence":"additional","affiliation":[{"name":"Department of Science, Schreiner University, 2100 Memorial Blvd, Kerrville, TX"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Robert D","family":"Mitchel","sequence":"additional","affiliation":[{"name":"Environmental Protection Agency, Office of Pesticide Programs, Registration Division, Invertebrate and Vertebrate Branch, Arlington, VA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Adalberto A","family":"Perez De Le\u00f3n","sequence":"additional","affiliation":[{"name":"USDA-ARS, Knipling-Bushland U.S. Livestock Insects Research Laboratory, Kerrville, TX"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"286","published-online":{"date-parts":[[2020,4,25]]},"reference":[{"key":"2020090707141824600_CIT0001","doi-asserted-by":"crossref","first-page":"6","DOI":"10.1016\/j.vetpar.2014.03.006","article-title":"Acaricide resistance in cattle ticks and approaches to its management: the state of play","volume":"203","author":"Abbas","year":"2014","journal-title":"Vet. 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