Plant Biostimulant Act of 2025
- Sponsor
- Sen. Marshall, Roger [R-KS]
- Committees
- Agriculture, Nutrition, and Forestry Committee (primary)
- Last action
- May 22, 2025
Bottom line
The bill provides regulatory clarity for plant biostimulants and nutritional chemicals under federal law, aiming to foster innovation and research in agricultural sustainability.
What it actually does
This bill amends the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) to establish clear definitions for "plant biostimulant" and "nutritional chemical," explicitly excluding them from the definitions of "plant regulator" and "pesticide" under certain conditions. It also mandates the Environmental Protection Agency (EPA) to revise its regulations to reflect these changes and directs the Secretary of Agriculture to conduct a study on the types and practices of plant biostimulants that best achieve soil health and climate-related benefits.
Proponents argue
Supporters argue that this legislation provides essential regulatory clarity for an emerging category of agricultural inputs, distinguishing biostimulants from traditional pesticides and plant regulators. This clarity will reduce market uncertainty, encourage innovation, and accelerate the availability of products that can improve nutrient use efficiency, enhance abiotic stress tolerance, and contribute to overall crop health and yield. The mandated USDA study is also seen as crucial for building an evidence base for sustainable agricultural practices.
Opponents contend
Critics might express concerns that creating new exclusions from FIFRA's broad definitions could potentially weaken regulatory oversight or lead to products with unsubstantiated claims entering the market without sufficient scrutiny. While the bill aims for clarity, some may argue that the definitions need to be rigorously applied by the EPA to prevent unintended consequences for consumer protection or environmental safety.
The bill is concise and easy to understand, allowing for a thorough evaluation within a short timeframe.
Section 2(a)
Amending FIFRA Definitions for Plant Regulators, Pesticides, Plant Biostimulants, and Nutritional Chemicals
This section revises the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) to explicitly exclude certain plant biostimulants and nutritional chemicals from the definition of a "plant regulator." It further clarifies that "plant biostimulant" and "nutritional chemical" are not considered "pesticides." Crucially, it introduces new, specific definitions for "plant biostimulant" (substances or microorganisms supporting plant natural processes independently of nutrient content to improve nutrient use, stress tolerance, growth, quality, or yield) and "nutritional chemical" (substances improving nutrient availability or aiding plant nutrient acquisition/utilization).
Supporters argue
Supporters contend that these precise definitions are vital for distinguishing biostimulants from traditional pesticides, which have different mechanisms of action and regulatory needs. This clarity will foster innovation, reduce regulatory uncertainty, and accelerate the availability of beneficial products to farmers, promoting more sustainable agricultural practices.
Critics contend
Some critics might express concern that carving out new exclusions from FIFRA's broad definitions could inadvertently weaken consumer or environmental protections if the new categories are not rigorously defined or if products make unsubstantiated claims. However, the bill's definitions are fairly specific.
Tradeoffs
The bill balances the desire for regulatory clarity and innovation in agricultural inputs with the need to maintain appropriate oversight for substances applied to plants and soil, ensuring product safety and efficacy.
Section 2(b)
Mandate for EPA Regulatory Revisions
This subsection requires the Administrator of the Environmental Protection Agency (EPA) to revise existing regulations under subchapter E of chapter I of title 40, Code of Federal Regulations, within 120 days of the bill's enactment. These revisions are necessary to implement the new definitions and exclusions established in subsection (a) of the bill.
Section 3
USDA Study on Plant Biostimulants and Soil Health
This section directs the Secretary of Agriculture to conduct a study assessing the types and practices of using plant biostimulants that are most effective in achieving various soil health and environmental benefits. These benefits include increasing organic matter, reducing atmospheric volatilization, promoting nutrient management, limiting runoff/leaching, restoring beneficial bioactivity, aiding carbon sequestration, and supporting agricultural sustainability innovations. The Secretary must make a public report of the study's results within two years of funds becoming available.