ARS | Publication request: THE IMPACT OF ACARICIDE-RESISTANT TICKS ON THE EXPORTATION OF CATTLE FROM MEXICO INTO THE U.S.

Submitted to: Meeting Proceedings
Publication Type: Proceedings
Publication Acceptance Date: August 25, 2003
Publication Date: October 1, 2003
Citation: GEORGE, J.E., KAMMLAH, D.M., POUND, J.M., DAVEY, R.B. THE IMPACT OF ACARICIDE-RESISTANT TICKS ON THE EXPORTATION OF CATTLE FROM MEXICO INTO THE U.S. PROCEEDINGS OF V INTERNATIONAL SEMINAR OF ANIMAL PARASITOLOGY, 1-3 OCTOBER 2003, MERIDA, YUCATAN, MEXICO. 2003. p. 22-27.

Interpretive Summary: Animal health issues are increasingly important considerations between international trading partners. Because Boophilus microplus and B. annulatus along with bovine babesiosis have been eradicated from the U.S., the widespread distribution of the ticks and babesiosis in Mexico is an issue that affects conditions under which live cattle may be exported from Mexico into the U.S. The tick problem is complicated substantially by the occurrence in Mexico of B. microplus populations that are resistant to most acaricides, including coumaphos the organophosphate compound used to treat cattle before they are exported. An overview of cattle export activities between Mexico and the U.S. is provided and includes an explanation of the system for inspecting cattle and dipping them in coumaphos before export. The dimensions of the problem with acaricide resistance are described along with an explanation of how this problem could affect future exports of cattle from Mexico into the U.S.

Technical Abstract: Animal health issues are increasingly important considerations between international trading partners. Because Boophilus microplus and B. annulatus along with bovine babesiosis have been eradicated from the U.S., the widespread distribution of the ticks and babesiosis in Mexico is an issue that affects conditions under which live cattle may be exported from Mexico into the U.S. The tick problem is complicated substantially by the occurrence in Mexico of B. microplus populations that are resistant to most acaricides, including coumaphos the organophosphate compound used to treat cattle before they are exported. An overview of cattle export activities between Mexico and the U.S. is provided and includes an explanation of the system for inspecting cattle and dipping them in coumaphos before export. The dimensions of the problem with acaricide resistance are described along with an explanation of how this problem could affect future exports of cattle from Mexico into the U.S.