is part of the Division of Informa PLC

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them. Informa PLC's registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.

  • American Agriculturist
  • Beef Producer
  • Corn and Soybean Digest
  • Dakota Farmer
  • Delta Farm Press
  • Farm Futures
  • Farm Industry news
  • Indiana Prairie Farmer
  • Kansas Farmer
  • Michigan Farmer
  • Missouri Ruralist
  • Nebraska Farmer
  • Ohio Farmer
  • Prairie Farmer
  • Southeast Farm Press
  • Southwest Farm Press
  • The Farmer
  • Wallaces Farmer
  • Western Farm Press
  • Western Farmer Stockman
  • Wisconsin Agriculturist

Gowan Company gains federal EPA registration for Magister SC miticide

Gowan Company, LLC announces the federal Environmental Protection Agency’s registration of Magister SC miticide for mite control in almonds; cherries, non-bearing tree fruits, and nuts; and powdery mildew in cherries.

Magister was approved in California for almonds and cherries in January 2016.

Gowan calls Magister SC a powerful and effective miticide to provide a solid solution to mite control problems.

Fenazaquin, the active ingredient in Magister SC, is a new foliar miticide belonging to the chemical class quinazoline.

Magister SC is a broad-spectrum miticide active against spider mites (Tetranychidae), broad mites (Tarsonemidae), flat mites (Tenuipalpidae), and gall mites (Eriophyidae).

Magister SC provides contact activity against all stages, including eggs, immature, and adult mites. The miticide delivers fast knock down plus good residual control for mite populations.

Magister inhibits respiration in cells of target mites providing rapid control (Mitochondrial Complex I Electron Transport Inhibitor). 

Magister SC is a unique miticide as it also controls powdery mildew in cherries - Podosphaera clandestine.

Gowan says, “We are excited about the performance we have seen with this product and the opportunity it provides to control mites and fungal diseases in several important crops.”

While fenazaquin is a new compound in the U.S., it has been used successfully on a wide range of agricultural and horticultural crops in more than 50 countries worldwide.

Gowan Company, based in Yuma, Ariz., is a family-owned registrant and marketer of crop protection products and champions technology for agriculture and horticulture through innovative product development, public advocacy, and quality production. 

Hide comments


  • Allowed HTML tags: <em> <strong> <blockquote> <br> <p>

Plain text

  • No HTML tags allowed.
  • Web page addresses and e-mail addresses turn into links automatically.
  • Lines and paragraphs break automatically.