Reviewed August 2026 against the US EPA biopesticides program, Expert Market Research’s US Agricultural Biologicals report, and the peer-reviewed PLOS One organic-yield study.

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Biologicals in Agriculture: What They Are, Data & ROI

What Are Biologicals in Agriculture?

Biologicals in agriculture are crop inputs derived from living organisms or natural biological processes — microorganisms, plant extracts, and bioactive compounds — used instead of, or alongside, synthetic chemical fertilizers and pesticides. The category splits into four working groups: biofertilizers, biostimulants, biopesticides, and biological fungicides. If you searched “what are biologicals in agriculture” expecting a one-line definition, that’s it; the rest of this article is the data and evidence behind it that a summary box won’t give you.

• Biofertilizers: Living microorganisms — nitrogen-fixing bacteria, mycorrhizal fungi — applied to soil or seed to improve nutrient uptake without synthetic fertilizer.
• Biostimulants: Bioactive compounds from plants, fungi, or algae that improve stress tolerance and nutrient-use efficiency rather than supplying nutrients directly.
• Biological pesticides (biopesticides): Products built on bacteria (such as Bacillus thuringiensis), fungi, viruses, or botanical extracts, registered by the EPA as a distinct product class with its own review pathway.
• Biological fungicides: Beneficial fungi or bacterial strains — Trichoderma species are the most common commercial example — that outcompete or suppress pathogenic fungi in the root zone.
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US Market Size: How Big Is Farming Biologicals, Really

The US agricultural biologicals market was valued at $3.47 billion in 2025, according to Expert Market Research, which forecasts growth to $11.37 billion by 2035 — a compound annual growth rate of 12.6% across 2026-2035. Globally, the market was $17.51 billion in 2025 and is projected to reach $44.06 billion by 2034, per Precedence Research. That means the US alone accounts for roughly a fifth of global biologicals revenue.

Within the US market, row crops (corn, soybeans, wheat, cotton) captured 82.2% of segment share in 2025, per Expert Market Research — this is the aggregate figure available; a breakdown by individual crop isn’t published in current market reports. Crop protection products (biopesticides and biofungicides) made up 53.7% of the US biologicals market in 2025, according to Mordor Intelligence, with the biopesticides segment specifically forecast to grow 14.6% annually from 2026 to 2035.

Farmer awareness has outpaced adoption. Among US row-crop farmers, 87% were aware of biologicals as of 2023, but only 45% were actually using them, per a market research summary citing USDA-reported figures via AgNavigator. That 42-point gap between knowing about biologicals and buying them is the commercial story of this category right now — and it’s the reason most of the sections below focus on evidence, not just definitions.

To refresh these figures yourself: Expert Market Research typically issues updated US Agricultural Biologicals reports in Q4 each year with revised current-year and forecast numbers — check their report page directly for the latest release. For adoption and awareness data broken out by specific crop, USDA NASS runs the Census of Agriculture every five years (the next is scheduled for 2027), and data.census.gov lets you filter organic vs. conventional acres and production once that data set is live.

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Core Principles of Biological Farming

Biological farming is the practice of relying on these biofertilizer, biostimulant, biopesticide, and biofungicide categories in place of — or blended with — synthetic chemical inputs. Five principles define it in practice:

• Soil Health Improvement: Biofertilizers, crop rotations, and organic amendments build soil organic matter and nutrient-holding capacity.
• Pest and Disease Management: Biological pesticides and fungicides substitute for, or supplement, synthetic sprays.
• Reduced Chemical Reliance: Lower synthetic fertilizer and pesticide volumes cut runoff and residue exposure.
• Biodiversity and Ecosystem Services: Wider plant diversity and pollinator protection support natural pest suppression.
• Sustainable Intensification: The goal is maintaining or raising output per acre while reducing the chemical load per acre — not simply producing less.

Biologicals vs. Conventional Chemical Inputs

The practical case for biologicals rests on four measurable differences from synthetic chemical inputs:

• Targeted Action: Bacillus thuringiensis-based pesticides and fungal antagonists act on specific pest or pathogen species, sparing beneficial insects and soil organisms that broad-spectrum chemicals also kill.
• Faster Environmental Breakdown: Biological actives degrade faster in soil and water than many synthetic residues, which is a core reason the EPA created a distinct, faster registration track for them (detailed in the regulatory section below).
• Soil Microbiome Effects: Biofertilizers and biostimulants are designed to build microbial populations rather than bypass them, in contrast to some synthetic fertilizers that can suppress soil biology over repeated seasons.
• Registration Speed as a Market Signal: A biopesticide typically reaches EPA registration in under a year, versus multi-year timelines common for new conventional pesticide active ingredients — faster time-to-market is part of why the segment is growing 14.6% annually per Mordor Intelligence’s forecast above.

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The Yield Question: What the Data Actually Shows

This is the question most farmer-facing biologicals content skips, and it’s where AI summaries tend to hand-wave. The most rigorous public data point comes from a peer-reviewed PLOS One study that compared organic and conventional yields across 10,000-plus US farms and 773,000 hectares of organic farmland for the 2014-2016 period.

The headline result: organic yields averaged 80% of conventional yields across all crops studied. But that aggregate hides wide variation by crop type — haylage (hay silage) under organic management actually reached 164% of conventional yield in the same study. That’s a real, cited spread, not a single “organic is worse” number, and it’s the clearest evidence available on what happens to output when a farm shifts toward biological/organic management rather than staying conventional.

Two honest gaps here, per the brief behind this article: there is no published, standardized figure for the yield change specifically when biologicals are layered onto an otherwise-conventional system (rather than a full organic conversion), and no official US source publishes a commodity-by-commodity ROI or break-even table for biologicals. If you need a number for your own operation, the only reliable path is a side-by-side trial on your own acres — treated strips vs. untreated, same field, same season — because neither USDA nor the market-research firms cited in this article currently publish that comparison at the input level.

EPA Registration and Regulatory Pathway

Biopesticides are regulated by the EPA as a distinct category from conventional chemical pesticides, under a framework built around three types: microbial pesticides, plant-incorporated protectants, and biochemical pesticides. As of August 2020, the EPA reported 390 registered biopesticide active ingredients in commercial products in the US.

The registration timeline is the regulatory detail that actually matters to a buyer or formulator: the EPA states that a new biopesticide typically takes less than one year to register, compared with the multi-year data packages required for many conventional pesticide active ingredients. That shorter cycle is a direct driver of new-product volume in the space — it’s cheaper and faster for a company to bring a biological active to market than a synthetic one.

To check the current registered count: the EPA’s ingredient list is a living database, not a static report — visit the EPA biopesticides page linked above for the current active-ingredient total, since 390 (August 2020) is the most recent figure in this article’s source material and the list has grown since.

How Biologicals Affect Soil Health and Nutrient Cycling

Biological inputs work on soil through mechanisms distinct from synthetic fertilizer application:

• Soil Microbial Diversity: Biofertilizers and biostimulants build populations of nitrogen-fixing bacteria and mycorrhizal fungi that persist in soil between applications, unlike synthetic nutrients that are consumed or leached within a season.
• Soil Structure: Fungal networks and organic matter improve aggregation, porosity, and water retention — a factor in drought resilience.
• Nutrient Cycling: Organic recycling of plant residues reduces dependence on synthetic fertilizer inputs and the runoff associated with over-application.
• Reduced Repeat Chemical Need: Natural predator-prey and competitive-exclusion dynamics can lower the frequency of repeat pesticide applications within a season.

For farms wanting to track these effects on their own ground rather than rely on regional averages, satellite-based soil and vegetation monitoring — covered in the section below — is the practical way to measure whether a biological program is actually changing soil condition on a specific field, rather than assuming it from national study data.

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Biological Fungicides & Pesticides: How They Work

Biological pesticides and fungicides harness natural defense mechanisms of living organisms — bacteria (such as Bacillus thuringiensis), fungi, viruses, or plant extracts — to target specific pests and diseases rather than acting broadly.

Key Mechanisms

• Antibiosis: Certain bacteria and fungi produce natural antibiotics or metabolites that suppress pathogenic organisms in soil.
• Parasitism and Predation: Beneficial nematodes prey on pest larvae; Bacillus thuringiensis produces proteins that target only specific insect species.
• Competition for Resources: Beneficial strains outcompete pathogenic fungi or bacteria for nutrients and space in the rhizosphere.
• Induced Plant Resistance: Biostimulants and some biofungicides trigger a plant’s own immune response to new infections or insect attacks.
• Botanical Extracts & RNA-Based Pesticides: Plant-derived bioactive compounds or gene-silencing RNA disrupt pest viability without affecting non-target organisms.

Trichoderma species are the most widely used biological fungicide genus for root protection in US row-crop and specialty-crop systems, while Bacillus thuringiensis sprays remain the standard biological control for caterpillar pests without harming pollinators.

Integrated Chemical and Biological Management

Biologicals and synthetic chemicals are not competing categories on most working farms — they’re combined within integrated pest management (IPM) systems:

• Complementary Use: Biologicals and chemicals are applied together to manage pests, disease, and nutrition while reducing total synthetic load.
• Site-Specific Application: Satellite, sensor, and AI-driven analytics let growers apply the right combination of biological and chemical products at the right location, time, and rate.
• Formulation Advances: Microencapsulation, shelf-stable powders, and liquid suspensions have improved the shelf life and field reliability of biological products, a factor behind the segment’s 14.6% projected annual growth in biopesticides specifically.

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Satellite Monitoring for Biological Input Decisions

Applying biologicals precisely — rather than blanket-spraying a field — is where satellite monitoring earns its cost. Farmonaut’s platform supports that decision layer in several ways:

• Real-Time Monitoring: Satellite imagery and AI-powered dashboards track crop health, vegetation indices (NDVI), and soil conditions across a farm’s full acreage.
• Resource Optimization: Identifying problem hotspots lets growers apply biological products only where needed, rather than uniformly across a field.
• Blockchain-Based Traceability: Documents that produce was grown under a biological or reduced-chemical program, supporting buyer certification requirements.
• Environmental Impact Tracking: Monitors input use and environmental indicators over time on the same acres.
• AI-Based Advisory: Farmonaut’s Jeevn AI provides input-timing guidance for combined biological and chemical programs.

Calculator: Estimate Your Biologicals Input-Cost Shift

The market and yield data above are national averages — this calculator applies your own acreage, current chemical spend, and expected biologicals share to estimate the input-cost change for your operation, using the 80% organic-yield-equivalence figure from the PLOS One study as a conservative yield-adjustment reference point.

Adoption Factors on US Farms

• Awareness vs. Use Gap: 87% of US row-crop farmers were aware of biologicals in 2023, but only 45% were using them — the adoption barrier is proof and economics, not awareness, per the AgNavigator-reported figures cited above.
• Reliability & Compatibility: Newer formulations are more stable and easier to store under varying field conditions than earlier biological products.
• Regulatory Speed: The EPA's sub-one-year registration timeline for biopesticides (versus multi-year for many conventional actives) means more new products reach the market faster.
• Digital Agriculture Tools: Satellite, mobile, and AI applications make it practical to target biological applications to specific field zones rather than applying them uniformly.

With Farmonaut's subscription platform, farms can remotely monitor and optimize biological input programs field-by-field, replacing blanket application with targeted decisions.

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Comparison Table: Conventional vs. Biological Practices

The table above is deliberately narrow to figures that are actually published and sourced — no invented cost-per-acre or ROI column, because no official US source currently publishes one at the commodity level. Where a number is missing, that's the honest state of public data, not an oversight.

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Where This Goes Next

Three things will move this market forward from here, based on current data and forecasts rather than speculation:

• Continued Double-Digit Growth: Expert Market Research's 12.6% CAGR forecast for 2026-2035 implies the US market roughly triples over the next decade if the trend holds — check their report page directly each year for the revised forecast, since projections of this length get updated annually.
• Biopesticides Outpacing the Broader Category: Mordor Intelligence's 14.6% annual growth forecast for biopesticides specifically, versus the 12.6% blended CAGR for all biologicals, suggests crop protection will keep gaining share within the category.
• Narrowing the Awareness-to-Adoption Gap: Closing the 42-point gap between the 87% awareness and 45% usage figures cited above depends on published, farm-level ROI data that doesn't yet exist — the field trial approach described in the yield section is the practical stopgap until it does.
• Digital Integration: Satellite monitoring, blockchain traceability, and AI-driven advisory tools will keep being the mechanism that makes precise, site-specific biological application affordable at scale.

FAQ

Further reading:

• biological farming

Conclusion

Biologicals in US agriculture are a $3.47 billion market as of 2025, growing at a forecast 12.6% annually through 2035, concentrated in row crops and crop protection products, and regulated through an EPA pathway that moves faster than conventional chemical registration. The yield evidence is real but crop-specific — not a blanket "better" or "worse" than conventional — and the biggest open question, per-acre ROI, remains unpublished at the official level, which is why the calculator above and a same-field trial are the most reliable ways to answer it for a specific operation.

Farmonaut's satellite monitoring, AI advisory, and traceability tools exist to make the precision side of that decision practical — applying biological inputs to the zones and timing where the field data says they'll matter, rather than guessing across a whole farm.