Kevin Lyu, founder of EyouAgro, working on agricultural netting solutions for orchards and vineyards
I am Kevin Lyu, Founder of EyouAgro
I Make the Net That Stands Between Your Crop and the Storm.
For 30 years, my team and I have manufactured crop protection netting in our own Shanghai factory — hail nets, shade cloth, insect and drape nets — and shipped it directly to growers in more than 55 countries.
The people I build for — orchard owners, vineyard managers, greenhouse growers, agricultural importers — stake a whole year on every harvest.
No trading, no outsourcing. When a failed net can cost them a season, quality has to stay on my own production lines.
Where It All Began
A Father's Factory, A Son's Purpose.

The hum of machinery was the soundtrack to my childhood, and my father, its conductor.

Wind, frost, rain, and sun nourish everything that grows, but sometimes they can also cause harm. “How can we better protect them?” I found the answer to this question in my childhood.

I often saw my father working with his beloved machines in his factory.

"This netting is a suit of armor for the plants," he told me — guarding them against the harshness of nature.

At that moment, I felt a sense of wonder and pride. Today, I have taken over my father’s business, continuing this legacy of protection. That early understanding still shapes how I evaluate netting systems — not by how they look in catalogs, but by how they perform in the field, season after season.

I am fully dedicated to advancing crop protection technology, and to working alongside every grower with more advanced, eco-friendly solutions.

We firmly believe that by protecting every crop, we are ultimately safeguarding the hard work of growers and contributing to a more abundant, quality future for the world.
— Kevin Lyu
Our Philosophy
More Than Protection, It's Precision Growth Control
A net is not a cover. Done right, it is a growth instrument — optical and material science working for the crop underneath.

By precisely regulating shade and ventilation, we build a comprehensive crop protection system. It actively defends against harsh conditions like hail and high winds, ensuring a stable environment for optimal growth

A stable microclimate allows crops to devote more energy to fruit development. Unique diffused light technology boosts overall photosynthesis for better sugar content and flavor.

This is a cutting-edge technology. Our colored Agrotextiles selectively filter the light spectrum, sending specific growth signals to plants to stimulate flowering, enhance color, or delay harvest.

Proven in the Field
Engineering & Patents
Thirty years of field problems, turned into design changes, filed as 21 patents held by Joyeyou Industry. Twenty protect what happens under the net — they cluster around three questions growers actually ask. The twenty-first protects how we make the net itself.
Protection systems
5 utility models
How does a net survive a hailstorm intact? Complete orchard systems — anti-hail structures, automatic net tensioning, cherry-orchard protection, wind bracing.
Shade & reflective textiles
3 utility models
How do you control light and temperature without starving the crop? Weave structures for reflective screens, ground covers, and thermal curtains.
Fasteners & installation
10 utility + 2 design
The small parts that decide whether a net is still there after a storm — hooks that tension a net without tearing its edge, clips, connectors, and off-season storage hardware.
Manufacturing equipment
1 invention patent
The twenty-first patent protects the process, not the product — an in-line film-slitting system that keeps tape width and yarn weight consistent across every roll we produce.
PROTECTION SYSTEMS · 5 UTILITY MODELS
CN217407248U  Orchard anti-hail system
CN216982835U  Cherry planting protection system
CN214902579U  Agricultural wind-proof bracing system
CN217407250U  Automatic net tensioning system
CN216983312U  Eave bird-proof needle
SHADE & REFLECTIVE TEXTILES · 3 UTILITY MODELS
CN216193165U  Woven reflective screen structure
CN215301933U  Thermal woven curtain structure
CN216982706U  Reflective ground cloth material
DESIGN · 2
ZL 2018 3 0356444.6  Shark-tooth fixing clip
ZL 2021 3 0306835.0  Adjustable drawstring hook
FASTENERS & INSTALLATION · 10 UTILITY MODELS
CN208456968U  Fixing clip
CN215171887U  Adjustable rope-length hook
CN215819514U  Wire buckle clip
CN215302475U  Woven mesh connecting structure
CN215328949U  Woven mesh connecting pin
CN217152837U  Cable assembly device
CN217407247U  Post support plastic cap
CN217407249U  Multifunctional adaptive post cap
CN214825736U  Woven mesh storage system
CN217416385U  Protective net storage device
MANUFACTURING EQUIPMENT · 1 INVENTION
CN109733934B  In-line film slitting equipment

Utility models and the invention patent are verifiable on Google Patents; the two design patents are indexed at CNIPA.

Product Coverage
A Solution for Every Challenge
Rain Cracking in Chile, sunburn in Australia, birds in a New Zealand vineyard — every growing region has its own way of costing you a crop. Over 30 years, we have built a specific, field-proven answer for each of them.
No Two Orchards Are the Same.

The best solutions are born from collaboration. Tell me about your land, your crop, and the problem that keeps coming back — and I will come back with a protection strategy built for exactly that.

Sharing is the Best Way to Grow

“The more I share, the more I grow.” I firmly believe this.
Here, I’ll share what I’ve learned to help you better understand and use agrotextiles.

Buyers rarely need to memorise UV chemistry — they need to know which system belongs in their product.

HALS scavenges the radicals UV creates and is the backbone of almost every net we make. UV absorbers suit thicker, pigmented goods. Carbon black is the most durable of all — unpigmented polyethylene lasts about 9 months outdoors, a carbon-black grade over 25 — but only where black is acceptable.

I once had a buyer insist a black net “lasts longer because it’s black.” He was half right. You can’t borrow carbon black’s durability for a coloured net. This guide compares all three with real numbers, then gives you a decision framework you can apply straight to a quote.

— Kevin Lyu, EyouAgro
The single most expensive mistake I watch buyers make is comparing two nets by their UV grade and their price, and ignoring the one number that actually caps lifespan: weight.

UV protection has a ceiling, and yarn weight (GSM) sets it. A thin, low-GSM net has too much surface for too little material — it degrades faster than any stabilizer can protect, no matter how much HALS you load in. I’ve watched “same UV grade” nets at half the grams tear open in their second season.

This guide covers why GSM caps UV life, how to compare grams per m² instead of just price per m², and the two-number rule we give every serious buyer.

— Kevin Lyu, EyouAgro
After 20 years making HDPE netting, the hardest myth to kill is that a “UV stabilized” label means the resin underneath it will last. It won’t, if that resin is recycled.

Recycled HDPE carries impurities, catalyst residue and already-broken polymer chains. Those chains soak up UV stabilizer before the sun does its damage, and they seed the cracks that show up in year two. Same label, half the field life.

This guide covers how recycled resin drains stabilizer, how to tell virgin from regrind before you order, and why we run 100% virgin HDPE on every line.

— Kevin Lyu, EyouAgro
One UV grade does not fit every net — which is why we run different stabilizer packages across our lines.

A net spends its life in a specific way: under glass, in full sun, up for one season or for a decade. That pattern decides how much UV protection it actually needs. The mistake I see most is treating “UV-stabilized” as one thing — a grower stretches insect netting rated for a covered house over an open field, or assumes a shade-cloth assurance covers his new vineyard net.

The sun doesn’t read the product category; it reads exposure and time. This guide maps the real UV requirement for hail, shade, insect and vineyard nets, and shows how to turn your region and product into one spec.

— Kevin Lyu, EyouAgro

Greenhouse shade cloth from China sounds simple until you realise it covers five completely different products. The buyer who orders ‘50% reflective shade cloth’ when they need an energy-saving screen with 50% light transmission will receive a product that performs differently in winter — and costs differently too. Before comparing factories, resolve the product question: are you managing heat, light, energy, or photoperiod? The answer determines which factory can actually help you. — Kevin Lyu, EyouAgro

Buyers contact me about hail netting after a season that cost them 40% of their crop. By then, the decision is straightforward u2014 the hard question is specification. Most sourcing mistakes I see happen because the buyer chose the right factory but the wrong construction type. A Raschel drape factory cannot rescue you if your installation is a structured Leno canopy. Get the construction type right first. Then get the factory. u2014 Kevin Lyu, EyouAgro
Kenyan buyers who ask me to recommend a shade net supplier frame it as “who has the best quality.” In Kenya, the question is simpler than that.

For a Naivasha flower farm needing shade cloth this week, Greenspan Africa or Amiran Kenya hold local stock and deliver fast. For a Kiambu vegetable exporter planning 3 months ahead, direct import economics are worth calculating — most local Kenyan distributors source from Chinese manufacturers anyway, and you can remove that margin.

The right choice depends on your timeline and volume.

— Kevin Lyu, EyouAgro
South African buyers who ask me to recommend a shade cloth supplier frame it as “who has the best quality.” The question worth asking is different.

A Western Cape apple farmer needs RedAnt in Ceres — they know local conditions. A commercial buyer across multiple provinces needs Knittex or Alnet’s scale. Most other local suppliers source from Chinese manufacturers and add a markup. For 20,000+ sqm with 3 months lead time, that margin is worth calculating directly.

The right supplier depends on your volume and timeline.

— Kevin Lyu, EyouAgro
Insect netting is one of the most effective and sustainable ways to protect crops, improve microclimate stability, and reduce pesticide reliance. Choosing the right mesh size and structure directly affects pest exclusion efficiency, airflow, and crop yield quality.
UV stabilization is the most misrepresented attribute in netting, because the buyer can’t see it.

Two nets can both say “UV-stabilized HDPE” on the quote and differ by years of real life. After years on the manufacturing side, I can tell you the way to cut through it is documentary, not visual: the resin spec, a current accelerated UV report, and a batch number that ties that report to the goods you actually receive.

The trap I’ve watched catch the most buyers is the silent spec drop — a genuinely good sample lot, then a bulk order quietly built lighter. This guide is the exact checklist I’d use if I were the buyer, plus the red flags and a version you can write straight into a tender.

— Kevin Lyu, EyouAgro

In my years selling hail netting, I’ve watched growers treat this as either/or — net or insurance. That framing is the mistake.

Counterintuitive part: in a mild season, insurance can out-earn a black net on paper. A Spanish trial showed exactly that. So why do I still tell high-value growers to net first?

Because insurance pays market average, weeks late, and never replaces the export premium. A net at $500–750/ha/year protects the fruit itself.

— Kevin Lyu, EyouAgro

The vineyard owners who call me about trellis failures — it’s almost never the wire gauge. It’s end-post anchoring that collapses under cumulative lateral wire tension after the first season of full vine load.

In New Zealand and Chilean vineyards I supply netting to, I’ve seen 2.5mm high-tensile galvanised wire on treated Pinus posts hold for 15+ years — but only where end posts were set with diagonal strut anchoring at 45°. Without that, even 3mm wire pulls the row inward within two or three seasons as vine weight builds.

Spend 30% of your trellis budget on end posts and anchoring. The middle posts are just spacers.

— Kevin Lyu, EyouAgro
Correct shade cloth installation impacts tomato performance more than the shading percentage itself. This expert guide explains the ideal height, essential ventilation design, and irrigation adjustments required to prevent heat stress, reduce cracking, and stabilize microclimate conditions for high-quality tomato production.
From what I’ve seen across different vineyards, netting problems often start before the net is even installed—usually because the timing was misjudged.

In real vineyard operations, installing too early can interfere with spray programs, airflow, and canopy management, while installing too late exposes fruit to bird pressure, sunburn, and weather risks right when damage is hardest to reverse.

— Kevin Lyu, EyouAgro
A well-designed shade house is critical for healthy coffee seedlings. This guide covers frame height, net tension, post spacing, drainage, and pest control. Discover key construction tips, materials to use, and how to set up a hardening zone—ensuring strong growth, better survival, and long-term nursery success.
All articles are written based on first-hand project experience, on-site installation work, and long-term performance data collected from orchards, vineyards, greenhouses, and commercial growers worldwide.
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Kevin Lyu, founder of EyouAgro, working on agricultural netting solutions for orchards and vineyards
About the Author

Kevin Lyu is an agricultural netting specialist and founder of EyouAgro.
He has worked with vineyard, orchard, and greenhouse projects across 55+ countries,
focusing on practical installation, durability, and long-term performance of agricultural protection systems.

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