David Holden has over 40 years of experience working as a Pest Control Advisor and Agricultural Production Consultant who has worked with many crops and has specialty experience working with California avocados, berries, citrus, vegetables, and wine grapes. More recently, David has traveled extensively as well, consulting in production agriculture throughout the Midwest, the South, and Australia.

David has completed or is currently completing production related field research for a variety of manufacturers of agricultural nutrient and pest management products (Acadian, Amvac, Arysta Life Sciences, Bayer, Chemtura, DOW, DuPont, Floratine Bioscience, Global Organics, Lignotech, Miller Chemical, Nichino, Simplot, Syngenta, TKI, Valent, and more) both in the traditional and organic farming areas. In addition to the above named companies, he has also worked with the California Avocado Commission, California Celery Commission, California Pepper Commission and the University of California. He annually completes over 70 various projects divided 50/50 between nutrient management and pest management. In addition, David has had experience with over 100 various crops, and he is currently consulting on approximately 10,000 acres for growers of avocados, berries (strawberries and blueberries), citrus, field grown vegetables (celery, lettuce, cole crops, etc), and wine grapes.

Image of David Holden

David Holden, owner of Holden Research and Consulting, in a tomato hothouse.