Vigilante (insecticide)

Vigilante is an insecticide used with both dairy and beef cattle to reduce the number of flies in an agricultural area. It is usually formatted as a 50-gram bolus containing 9.7% diflubenzuron[1], an insect growth regulator which inhibits the formation of chitin and prevents insects from reproducing.[2] The bolus is administered via balling gun.[3] It is effective in reducing populations of horn flies and face flies for approximately 10-16 weeks.[2]

Vigilante was originally produced by American Cyanamid, and was the first larvicide marketed as a bolus.[4] After the breakup of American Cyanamid, Vigilante was manufactured by Uniroyal Chemical and then by Chemtura.[1][5]

It is best used as part of an integrated pest management program in combination with other fly-control methods such as insecticidal tags, backrubbers, and periodic spraying.[6]

References
  1. Uniroyal Chemical: EPA product sheet for Vigilante, 2001-09-27
  2. Kydonieus, Agis F. (2017-10-02). Treatise on Controlled Drug Delivery: Fundamentals-optimization-applications. Routledge. ISBN 9781351406871.
  3. Insecticide and Acaricide Tests. Entomological Society of America. 1990.
  4. Miscellaneous Publications of the Entomological Society of America. The Society. 1988.
  5. Chemtura: EPA product sheet for Vigilante. 2013-02-04
  6. Poore, Matt (2012-06-12). "Practical Fly Control" (PDF). Center for Environmental Farming Systems. Retrieved 2018-01-08.
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