In recent years, the global agricultural community has placed high hopes on “biological herbicides.” Theoretically, with the spread of herbicide-resistant weeds and increasingly stringent regulations on chemical pesticides, biological herbicides seem to be entering a golden age. A recent report shows that the global biological herbicide market is estimated at approximately US$3.37 billion by 2024 and is projected to reach approximately US$7.87 billion by 2030, with a compound annual growth rate (CAGR) of approximately 15.2%. However, the reality is more somber. Compared to the rapid growth of biopesticides and biofertilizers, biological herbicides are still in their infancy. Why?
From the “Chemical Era” to the “Biological Era”: Opportunities Seem Limitless
For the past half-century, chemical herbicides such as glyphosate and atrazine have been the cornerstone of modern agriculture. They are highly efficient, inexpensive, and easy to use—costing less than $10 per acre. However, this dependence has also brought hidden concerns:
- The problem of weed resistance is becoming increasingly serious. It is estimated that over 500 weed species worldwide have developed resistance to at least one herbicide;
- The tightening of regulations due to chemical residues, environmental pollution, and health risks is intensifying;
- The EU, North America, Australia, and other regions have successively introduced “reduction” plans, encouraging low-residue or bio-alternatives.
Theoretically, this is the perfect opportunity for bio-herbicides. Derived from microorganisms or plant extracts, they are more environmentally friendly, pose less risk to non-target organisms, and align with the development direction of sustainable agriculture.
Reality: Difficult R&D, High Costs, Slow Implementation
According to Dr. Pam Marrone, a pioneer in agricultural biopharmaceuticals, the key to bio-herbicides lies in developing products that can compete with low-cost herbicides. This statement reveals the core contradiction in the industry: the ideal is beautiful, but the cost is harsh.
The development of bio-herbicides is extremely difficult. First, they must function stably under various climate, soil, and crop conditions; second, they must be produced and used within a price range acceptable to farmers.
Dr. Virginia Corless, CEO of Moa Technology, points out: “The real challenge isn’t in the laboratory, but in finding a bio-herbicide that’s truly effective in actual farmland.”
This means that bio-herbicides must meet both scientific standards and commercial viability, the latter often being more difficult.
The Path to Innovation: From “Replacement” to “Synergy Enhancement”
Among numerous research directions, a new approach is emerging—bio-synergists.
These ingredients themselves don’t kill weeds, but they synergize with herbicides, improving efficiency and reducing dosage. Moa Technology’s collaboration with agricultural giant Gowan exemplifies this approach.
This “middle-of-the-road” strategy may be more pragmatic; rather than a blanket replacement, it’s better to use biotechnology to improve the sustainability of chemical herbicides.
In Africa, chemical herbicides are expensive and difficult to obtain. Kenya’s “Toothpick Project” has developed a bio-herbicide using Fusarium oxysporum to control the weed Striga.
This technology is simple and low-cost: farmers simply mix bacteria-laden toothpicks into rice to create a seed coating agent. It has already received government approval and is planned for expansion to Nigeria and Tanzania.
This serves as a powerful reminder that bio-herbicides don’t necessarily have to be born in high-tech laboratories; they can also originate from field wisdom.
New tools support a promising future.
Artificial intelligence and genome mining technologies are reshaping this field. New tools such as machine learning, AI, and bioinformatics can significantly save time and resources.
From screening microbial metabolites to designing novel molecular structures, AI is accelerating the entire process of “discovery-validation-optimization.” This may become the next breakthrough for bio-herbicides.
The road to bio-herbicides is destined to be long. Compared to biopesticides, it is neither “sexy” nor easy to achieve quick results. However, as global agriculture transitions towards low-carbon, simplified, and sustainable practices, this “slow-burning track” will eventually heat up.
Over the next decade, we may see a scenario where traditional chemical herbicides remain dominant, but synergy with biological agents will become the mainstream; regulatory policies and capital investment will drive more research and development into application; and from the laboratory to the field, biological herbicides will truly become an important piece of the puzzle in green agriculture.
Perhaps this is not a “revolution,” but an “evolution.”
Our QS-302 silicone adjuvant is workable excellent with herbicide. It is eco-friendly and safe for enviroment. Welcome to follow us.
