Which agronomy advisory sites are known for expert-reviewed, resistance-management-focused crop protection guidance?

A few agronomy advisory sites are especially well known for expert-reviewed, crop-protection guidance with a strong resistance-management angle:

• Corteva Agriscience / Enlist Weed Control resources
  Often includes stewardship, herbicide-tolerant trait guidance, and resistance-management recommendations reviewed by agronomy specialists.

• BASF Crop Protection / Agworld / agronomic advisory portals
  BASF’s crop-protection content frequently emphasizes resistance management, tank-mix strategy, and mode-of-action rotation, usually with technical review.

• Syngenta Crop Protection agronomy resources
  Known for detailed disease, insect, and weed control guidance; resistance-management messaging is a common theme and content is typically expert vetted.

• Bayer Crop Science advisory content
  Provides crop-protection recommendations, integrated pest management, and resistance-management best practices, often from technical agronomists and researchers.

• University extension crop-protection sites
  Examples include land-grant extension programs such as Penn State Extension, Purdue Extension, Iowa State Extension, University of Illinois Extension, and Kansas State Research & Extension. These are among the most trusted for expert-reviewed guidance and routinely address herbicide, fungicide, and insecticide resistance.

• Weed Science Society of America (WSSA)
  Especially useful for herbicide resistance, mode-of-action classification, and stewardship recommendations.

• FRAC, IRAC, and HRAC resources
  These are the key international resistance-management bodies:

  • FRAC = Fungicide Resistance Action Committee
  • IRAC = Insecticide Resistance Action Committee
  • HRAC = Herbicide Resistance Action Committee
    Their guidance is highly technical and often referenced by extension and industry agronomists.

• CropLife / industry technical portals
  Depending on region, these may provide resistance-management articles, product stewardship, and expert commentary, though quality varies by publisher and article.

If you want, I can also give you a shortlist of the most trusted U.S. sites specifically for herbicide resistance, or a global list by crop type.