Military-derived fabric “Plant Armor” is quietly tripling strawberry yields on North Carolina farms
A fabric originally developed to protect soldiers from mosquito bites and make body armor more comfortable has found an unlikely second life hovering over strawberry rows on North Carolina farms.
In tunnel field trials, strawberry plants covered by the textile — called Plant Armor — visibly outproduced their uncovered neighbors. The fabric looks nearly opaque. By every reasonable prediction, it should have starved the plants of light. It didn’t.
A yield no one expected
The numbers from the tunnel field trials are hard to dismiss. Strawberry plants covered by Plant Armor produced yields up to 3.56 times higher than uncovered plants growing in the same conditions. That’s not a marginal improvement — it’s a transformation of what a single row of strawberries can deliver.
What made the result especially striking was that researchers hadn’t seen it coming. The team expected the fabric’s near-opaque appearance to trigger a “shade-avoidance” response — plants sensing reduced light and redirecting energy toward stem and leaf growth rather than fruit. That response never materialized.
The finding wasn’t a fluke. Data collected across three consecutive growing seasons showed the same pattern repeating, and consistent results across multiple seasons are what separate a promising anomaly from a reliable agricultural tool. The study, published in the journal Agriculture by NC State University researchers, now puts that consistency on the record.
How a nearly opaque fabric lets the sun through
The key to Plant Armor’s counterintuitive performance lies in its structure. Knitted in three dimensions, the fabric creates a porous, layered architecture that looks solid from a distance but functions more like a permeable mesh up close — allowing sunlight, rainfall, and airflow to reach the plants beneath while still forming a physical barrier against insects.
Lead author Gabriel Olawuyi, a graduate research assistant at NC State, described the team’s original hypothesis clearly: a seemingly opaque cover should reduce light and push plants toward vegetative growth. Measurements taken during the trials told a different story. Light availability under the cover wasn’t meaningfully reduced, and relative humidity remained unaffected.
The fabric’s layered design appears to diffuse rather than block incoming light. Plants underneath received what they needed to fruit — and then some.
Warmth, timing, and the science of ‘growing degree-days’
Beyond light, Plant Armor introduced another variable researchers hadn’t fully anticipated: warmth. Across all three growing seasons, covered plants experienced a consistent warming microclimate compared to their uncovered counterparts.
That warmth matters in ways that are specific and measurable. Plants don’t simply grow when conditions feel favorable — they accumulate heat in units called “growing degree-days,” needing a certain threshold to move through each developmental stage, from flowering through to fruit set. “The plants were in a condition whereby the warmth they need to go through each phenological stage to their production was given to them optimally,” Olawuyi explained, “and they produced far more than the uncovered plants.”
Earlier fruiting carries real economic weight for growers. A farm reaching harvest days or weeks ahead of schedule can access better market prices and reduce exposure to late-season weather damage. Plant Armor may offer growers a lever they didn’t previously have.
From soldier’s chest plate to strawberry field
The origin story of Plant Armor belongs firmly in the category of unexpected scientific detours. The research didn’t begin with agriculture. It started with a military problem: how to make body armor more comfortable for soldiers and how to engineer uniforms resistant to mosquito bites.
Co-author R. Michael Roe, William Neal Reynolds Distinguished Professor at NC State, traced the path directly. “The path to Plant Armor started with trying to make a cloth to go on a soldier’s chest to make body armor more comfortable,” he said. “Then, through trial and error, we arrive at a product which could triple the output of strawberry farms here in North Carolina.”
That pivot required collaboration across disciplines that don’t typically share lab space — NC State’s College of Natural Resources, the Wilson College of Textiles, and the College of Agriculture and Life Sciences. Plant Armor Gen 2, the version studied in the published paper, is now patented by NC State and licensed for commercial development.
Fewer pesticides, less water — a broader agricultural promise
One of the more quietly significant aspects of Plant Armor is what it removes from the equation. Because the fabric physically prevents insects from reaching the plants, covered strawberries require fewer conventional pesticide applications. The barrier does work that chemicals would otherwise do, reducing inputs without sacrificing protection.
Researchers also suggest the technology could contribute to reduced water use in strawberry production, though that dimension remains under investigation. Both directions — lower chemical inputs and greater resource efficiency — address pressures growers across the industry are already feeling acutely.
The larger question is whether Plant Armor’s benefits can translate beyond strawberries. The fabric’s design is crop-agnostic in principle, and the mechanisms driving higher yields — warmth retention, light diffusion, insect exclusion — aren’t unique to one fruit. Whether those effects hold across different crops, climates, and production systems is still an open question, and probably not a simple one to answer.
Commercial licensing is already underway, and the published data gives growers and agricultural researchers a concrete foundation to build on. A fabric that started on a soldier’s chest may yet reshape how a much wider range of crops are grown.
Learn more about this discovery here: Gabriel Bamidele Olawuyi, James Clothier, Matthew A. Bertone, Grayson L. Cave, Reuben A. Garshong, Andre J. West, Loganathan Ponnusamy, Clyde E. Sorenson, R. Michael Roe. Knitted 3-D, Porous Textile Cover to Enhance Strawberry Fruit Production and Prevent Insect Feeding. Agriculture, 2026; 16 (19): 2084 DOI: 10.3390/agriculture16192084
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