Peter Dart — Soil Microbiology Researcher and Founder of Darts Biotechnologies
The biological engine powering HayRite® DB68/FLEX™ is not an off-the-shelf microbe; it is the direct result of a lifelong scientific lineage. Peter Dart's career sits at the heart of that lineage, stretching from foundational fellowships at Harvard University to pioneering research at the UK's Rothamsted Experimental Station, and ultimately to decades of leadership at the University of Queensland. As the founder of Darts Biotechnologies and a lead inventor on multiple biological control patents, his foundational research directly produced the Bacillus amyloliquefaciens strain selection process that brings the DB38 strain to modern agriculture.Understanding this background is crucial for operators trusting their forage to biological preservation. The specific Bacillus work that the H57 and DB38 strains descend from was deliberately characterized and developed to thrive in demanding agricultural environments, leveraging over fifty years of Peter’s focused academic and field-level soil microbiology expertise.
Academic foundation
✓ Confirmed Cabot Foundation Fellow at Harvard University in 1964–65 — a fellowship for advanced biological research awarded to scientists working at the frontier of plant and soil sciences.
✓ Confirmed Fulbright Fellowship at Harvard during the same period (1964–65), supporting international scientific exchange and cross-institutional research.
These early appointments placed Peter at the intersection of American and British soil microbiology traditions — working in a period when the field was rapidly formalizing the role of beneficial microorganisms in agriculture.
Rothamsted Experimental Station
Rothamsted is the oldest continuously operating agricultural research institution in the world, founded in 1843. Its long-term experiments on soil and plant biology have shaped most modern understanding of how microbial communities affect crop productivity.
Peter spent formative research years at Rothamsted contributing to that body of work — specifically on nitrogen-fixing bacteria, soil microbial communities, and the agricultural applications of beneficial microorganisms.
ICRISAT and ANU — bringing the science to the field
✓ Confirmed From 1975 to 1983, Peter served as Principal Scientist at the International Crops Research Institute for the Semi-Arid Tropics (ICRISAT) in Hyderabad, India — leading research on agricultural microbiology in some of the world's most demanding farming environments.
✓ Confirmed From 1983 to 1987, Peter was Senior Research Fellow at the School of Biological Sciences, Australian National University.
It was during this period that Peter's expertise attracted Agrigenetics (then the largest US seed company) and the Blue Circle program — the first biological control agent ever approved by the United States Environmental Protection Agency. Blue Circle was later withdrawn over safety concerns; the lesson — that biological products require both scientific excellence and uncompromising safety — has stayed with the work ever since.
University of Queensland
The bulk of the intensive research lineage that ultimately produced HayRite's specific Bacillus strain selection occurred during Peter's tenure at the University of Queensland. As an Associate Professor, he built and led decades of specialized work focusing on the practical application of beneficial soil and feed microorganisms. His lab became a hub for isolating strains that could reliably outcompete agricultural pathogens and spoilage organisms in real-world conditions.
✓ Confirmed The H57 strain of Bacillus amyloliquefaciens — the closely related sister strain to DB38 used in HayRite — was meticulously characterized and developed through this exact Queensland research lineage. Extensive published feeding studies on the H57 strain (Ngo et al. 2021; Pan et al. 2022) trace their scientific foundation directly back to Peter’s laboratory work.Following this established scientific pathway, the DB38 strain was carefully selected from the very same genetic lineage to optimize forage preservation. Today, it is manufactured at commercial scale under strict research-grade quality controls at the same QUT MRBPP Mackay facility that produces H57, ensuring the science translates perfectly from the lab bench to the baler.
Why this matters for HayRite
Most agricultural input products don't have a scientific provenance you can trace. HayRite does.
When you treat your hay with HayRite, you're applying a strain that descended from a research lineage built across Harvard, Rothamsted, and the University of Queensland — institutions whose work on beneficial microorganisms in agriculture spans more than a century combined.
That lineage doesn't make HayRite proven for every operational scenario. But it does mean the bacterial population you're applying isn't a random off-the-shelf Bacillus — it's a strain that was selected, characterized, and developed inside a research tradition that knows what it's doing.
Continue learning
Read more about Darts Biotech, the team, and the research-first approach to HayRite product development.