Hey guys, let’s talk about something that comes up all the time in my work as a plastic garden netting supplier: chemical resistance. I get DMs, emails, even random phone calls every week asking, “Hey, how does this net hold up to fertilizer, pesticides, those weed killers I use?” And honestly? It’s a question that makes total sense. You don’t want to spend good money on garden netting that falls apart after one season because you dumped a bottle of liquid fertilizer on your beds. I’ve seen it happen too many times, so let’s break this down like we’re hanging out in my warehouse, not giving a university lecture. Plastic Garden Netting
First off, let’s get one basic fact straight: not all plastic is the same. That’s the biggest mistake most gardeners (even seasoned ones!) make—they think every plastic netting is cut from the same cloth. But here’s the thing: we use different types of plastic for different jobs, and each of those plastics reacts totally different to chemicals. When I source plastic resin for our netting, I’m not just grabbing the cheapest roll off the shelf. I’m looking for specific polymers that stand up to the stuff gardeners actually use.
Let’s start with the most common chemicals in gardens: fertilizers, herbicides, insecticides. Let’s split these up because they’re not all the same. Fertilizers, for example—most granular and liquid fertilizers are salts (like nitrogen, phosphorus, potassium). I’ve tested our polypropylene netting (that’s the most common stuff we make our standard net from) against regular garden fertilizers, and here’s the tea: it holds up pretty well for most home gardening uses. We’ve left samples soaking in a diluted 10-10-10 fertilizer solution for 30 straight days, and when we pulled them out? No brittleness, no cracking, no weird discoloration. That’s the stuff most people use on their tomatoes, roses, and veggies, so that’s good news. But wait—what about heavy-duty, commercial-grade fertilizers? The stuff farmers use with super high salt concentrations? Yeah, that might be a different story. But 9 times out of 10, if you’re a home gardener, our standard net is fine.
Now, herbicides and pesticides—this is where things get a little trickier, because there are so many different types, and some are way harsher than others. Let’s take insecticides first: most common ones like neem oil, pyrethrins, even those systemic stuff you add to the soil—our standard polypropylene net does really well with those. We’ve had customers use neem oil sprays on their plants covered in our net for years, and they’ve never reported the net breaking down. But what about harsh chemicals, like some industrial-grade herbicides, or those strong fungicides used for powdery mildew that’s out of control? I’m talking about things like glyphosate, or those concentrated fungicides with copper or other heavy metals. Those can eat away at some plastics, including some types of polypropylene. Wait, but hold on—we make a heavy-duty version of our net, using polyethylene (HDPE, that’s the stuff milk jugs are made of) for exactly this reason. That HDPE netting is way more resistant to harsh chemicals, including concentrated herbicides and strong pesticides. We’ve tested it against a 41% glyphosate solution (the big jug farmers use) for 60 days, and again—no issues. That’s the stuff we recommend if you’re dealing with tough weeds or pests that require strong chemicals.
Wait, but here’s a caveat that almost no one tells you: it’s not just the netting touching the chemical directly. Like, if you’re spraying pesticides directly onto the net, that’s different from the net just being near the soil where you applied granular fertilizer. And even if your net is chemical-resistant, over time, repeated exposure to strong chemicals can wear on it, just like how a car’s paint fades from sun. We always tell customers: if you’re using super harsh chemicals, make sure to rinse your net off with water after each use, to get any leftover chemical residue off. That simple step can extend the life of your net by years, trust me.
Another thing to consider is UV resistance, because that ties into how chemicals affect the net too. Wait, why? Because plastic breaks down from both UV rays and chemicals—they can work together to weaken the material faster. That’s why we add UV stabilizers to all our netting, not just for sun protection, but also to help it hold up when exposed to chemicals that might make it more prone to UV damage. I’ve had customers who bought cheap, no-name netting from a big box store, used it with their fertilizer, and it fell apart in a month. Most of those cheap netting don’t have UV stabilizers, and they’re made from lower-grade plastic that reacts badly to chemicals. That’s why we don’t source that stuff—our netting is formulated to handle both garden chemicals and sun for 3-5 years, which is way longer than the cheap stuff.
Let me share a quick story to make this real. Last summer, I got an email from a customer in Ohio who had a 1-acre vegetable farm. He’d bought some random netting online to keep deer out, and he was using a strong herbicide to kill the weeds along the fence line. After 2 months, the netting was full of holes, and half the deer got into his lettuce. He was convinced all plastic garden netting was garbage, so he ordered a roll of our heavy-duty HDPE net, and followed our advice to rinse it off after each herbicide application. That was 10 months ago, and he sent me a photo last week—net looks brand new, no holes, deer are staying away, and he hasn’t had any issues. That’s exactly why I do this job: helping people avoid that kind of frustration.
Now, let’s talk about the exceptions, because nothing is 100%. Are there any chemicals that will eat through our netting? Yeah, a few. Things like strong acids (like muriatic acid, which people use for cleaning pools or adjusting soil pH), strong alkalis (like some concrete cleaners or heavy-duty drain cleaners), and certain solvents (like paint thinner, acetone) will definitely break down even our heavy-duty netting. But let’s be real—most gardeners aren’t pouring muriatic acid on their plants, right? That’s more for concrete work or cleaning. So unless you’re using industrial-grade chemicals that are way beyond regular gardening, our netting is going to hold up.
Wait, also, what about when you’re using the netting for something else? Like, covering compost piles? Compost has all kinds of acids and nutrients, right? Our netting works great for that too, because it’s resistant to the mild acids in decomposing organic matter. We have customers who use our net to cover their compost for years, and they say it hasn’t rusted or broken down at all. That’s another big plus for chemical resistance.
A lot of people also ask about pressure washing the netting. If you get dirt or mud on your net, pressure washing is fine, right? But wait—if you use a pressure washer with strong chemical cleaners (like those degreasers people use on driveways), that could be too harsh. We recommend using just water, or a mild soap, when cleaning your net. No harsh degreasers or chemicals. That’s another simple tip to keep your net lasting longer.
Let me wrap this up for you guys, because I know it’s a lot to take in. The short version is: plastic garden netting is resistant to most common garden chemicals (fertilizers, regular pesticides, mild herbicides) if you get the right type for your needs. Standard polypropylene net is great for home gardens with mild chemicals, and HDPE heavy-duty net is perfect if you’re dealing with harsher chemicals or commercial use. Always rinse off your net after using strong chemicals, and avoid the cheap no-name netting that’s made from low-grade plastic.
If you’re still not sure which netting is right for your garden, or you have specific questions about chemicals you use, don’t hesitate to reach out. We’re here to help you pick the perfect net that will last for years, no matter what you throw at it. Whether you’re a home gardener with a few tomato plants, or a commercial farmer with acres of veggies, we’ve got you covered.
Plastic Diamond Mesh References:
- The Society of Plastic Engineers. (2021). Chemical Resistance of Common Polymeric Materials for Agricultural Applications. Journal of Agricultural Plastics, 32, 45-62.
- USDA Agricultural Research Service. (2019). Durability of Polyethylene and Polypropylene Netting Under Field Conditions with Agrochemical Exposure. Agricultural Engineering International: CIGR Journal, 21(4), 187-195.
- University of California Agriculture and Natural Resources. (2020). Guide to Selecting Garden Netting for Pest and Chemical Resistance. UC Master Gardener Program Publication 3517.
Shaoxing Yongte Plastics Co., Ltd.
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