Most Popular Crop Protection Products Used by California Farmers in 2025

California’s farmers reported making nearly 3.2 million applications of 3,289 different restricted-use products in 2025, according to the latest data published on Meister Media’s PURE Intel platform. That means making roughly 3.2 million decisions about which product to apply. Growers undoubtedly trust each other more than anyone else when it comes to identifying the products that perform best so let’s look at the products growers applied to the most acres last year.

Despite all of noise around its use in recent years, California farmers have reported more treated acres of glyphosate over the past five years than of any other active ingredient so seeing RoundUp PowerMAX 3 as the most widely used product is not particularly surprising. In fact, last year was the second consecutive year that RoundUp PowerMAX 3 topped this list as the potassium salt version of glyphosate replaces the isopropylamine salt active ingredient in RoundUp PowerMAX.

UPL’s Microthiol Disperss biofungicide was again the top sulfur product in California, a position that the product has held for a number of years.

Meanwhile, BASF’s Merivon Xemium fungicide led the way for non-sulfur disease-control products for the fifth consecutive year with roughly 60% more treated acres any other conventional fungicide in 2025.

In terms of insect-control solutions, the popular active ingredient methoxyfenozide went off patent in recent years, but growers have remained loyal to Intrepid 2F, Corteva’s methoxyfenozide brand. In fact, Intrepid posted 5% year-over-year growth in treated acres in 2025 as it remains the only insecticide to enjoy more than 1 million treated acres in a single year in California.

For the fifth consecutive year a new adjuvant won the battle for the most widely applied adjuvant. Vintre from Rovensa Next narrowly took the crown from CPS’ LI 700 in 2025 while Helena’s Dyne-Amic and CPS’ Activator 90 also posted strong years after recently topping the field.

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For more detailed information about crop protection applications in California, visit PureIntel.com.