--- product_id: 623262920 title: "217c Spider Mite Control" brand: "sierra natural science" price: "€ 29.35" currency: EUR in_stock: true reviews_count: 8 category: "Sierra Natural Science" url: https://www.desertcart.at/products/623262920-217c-spider-mite-control store_origin: AT region: Austria --- # 100% pure rosemary extract Kills mites & eggs 100% Biodegradable & EPA exempt 217c Spider Mite Control **Brand:** sierra natural science **Price:** € 29.35 **Availability:** ✅ In Stock ## Summary > 🌿 Defend your garden naturally—mite-free, worry-free! ## Quick Answers - **What is this?** 217c Spider Mite Control by sierra natural science - **How much does it cost?** € 29.35 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/623262920-217c-spider-mite-control) ## Best For - sierra natural science enthusiasts ## Why This Product - Trusted sierra natural science brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Concentrated Value:** 6 fl oz concentrate makes up to 32 fl oz spray—ready to tackle infestations fast and efficiently. - • **Zero Residue, Zero Worry:** Leaves no sticky mess or chemical residue—just a clean, natural defense. - • **Complete Mite Eradication:** Kills spider, broad, russet mites plus eggs—breaks the life cycle instantly. - • **Eco-Friendly & Family Safe:** EPA exempt, biodegradable, and safe around kids, pets, and beneficial insects when used as directed. - • **Plant-Safe Botanical Power:** 100% organic rosemary extract formula that’s gentle on plants, fruits, and veggies. ## Overview Sierra Natural Science 217C is a 6 fl oz organic rosemary-based concentrate that kills all types of mites and their eggs by suffocating them with a natural oily barrier. Safe for use up to harvest, it’s EPA exempt and biodegradable, making it ideal for professional and home gardeners seeking an effective, plant-safe, and eco-conscious pest control solution. ## Description 217C kills spider mites, broad mites, russet mites and their eggs. Spider mites destroy plant cells by sucking out their contents and 217C unique formula works by providing a barrier which is harmless to the plant, but fatal to the mites. 217C kills the spider mites eggs and kills the life cycle by coating the eggs with an oily shield that blocks respiration to the egg; therefore no hatching will occur, they will just dry out. 217C is made up of 100% pure rosemary botanical extracts highly water soluble. We process raw certified organic botanicals and herbs in-house, ensuring oils and terpenes have a consistent potency across all of our products. The botanical extracts are all food grade GRAS (generally recognized as safe when used as directed) materials, that are fully biodegradable, and not toxic to animals. It is exempt from EPA registration under minimum risk pesticide exempted under FIFRA section 25(b). It can be used on a wide variety of plants, fruits, and vegetables. Review: Very effective - Used it to control a spider mite infection in an indoor garden. Used two applications, but there was no sign of life after the first. I’ve had trouble safely eradicating mites before without damage to plants, consumer or environment. The SNS 217c was instant kill. No chemicals. Just rosemary extract. I found the rosemary scent very pleasant. Not sticky or messy at all. Didn’t hurt the plants at all. The only way I would like it more is if it were less expensive. It’s a great product and it’s priced accordingly. Review: Works better on spider mites than anything else I've tried. - This stuff is pricy but better on spider mites than all the other products I've tried. It's hard on blooms and stunts bloom growth for a few days. Try to catch infestations before your plants flower. Spray every bit of the plant, and repeat after a few days at least twice. Mites lay eggs on the underside of leaves, if you miss a spot they will come back! A pint doesn't go very far but don't be stingy with it. It makes 6 pints of spray. I keep a pint of concentrate in the fridge so I can respond quickly at the first sign of mites. They multiply unbelievably fast. ## Features - Kills all mites and their eggs, ending the life cycle - EPA Exempt FIFRA 25(b) - Can be used up to Harvest (0-Day REI) - Safe around children & pets when used as directed - Safe for use with beneficial bugs when used as directed ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0CSHLKR7Q | | Best Sellers Rank | #135,251 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #441 in Insect & Pest Repellent Spray Concentrates | | Brand Name | Sierra Natural Science | | Customer Reviews | 4.4 4.4 out of 5 stars (66) | | Included Components | 1 insecticide concentrate | | Item Form | Oil | | Item Volume | 6 Fluid Ounces | | Item Weight | 6 Ounces | | Manufacturer | Sierra Natural Science | | Material Features | Organic | | Number of Items | 1 | | Scent Name | Unscented | | UPC | 850046870095 | | Unit Count | 6.0 Fluid Ounces | ## Product Details - **Brand:** Sierra Natural Science - **Item Form:** Oil - **Item Volume:** 6 Fluid Ounces - **Material Feature:** Organic - **Scent:** Unscented ## Images ![217c Spider Mite Control - Image 1](https://m.media-amazon.com/images/I/515rysrD6+L.jpg) ## Available Options This product comes in different **Size, Number Of Items** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Very effective *by A***R on January 22, 2026* Used it to control a spider mite infection in an indoor garden. Used two applications, but there was no sign of life after the first. I’ve had trouble safely eradicating mites before without damage to plants, consumer or environment. The SNS 217c was instant kill. No chemicals. Just rosemary extract. I found the rosemary scent very pleasant. Not sticky or messy at all. Didn’t hurt the plants at all. The only way I would like it more is if it were less expensive. It’s a great product and it’s priced accordingly. ### ⭐⭐⭐⭐⭐ Works better on spider mites than anything else I've tried. *by D***Y on February 18, 2024* This stuff is pricy but better on spider mites than all the other products I've tried. It's hard on blooms and stunts bloom growth for a few days. Try to catch infestations before your plants flower. Spray every bit of the plant, and repeat after a few days at least twice. Mites lay eggs on the underside of leaves, if you miss a spot they will come back! A pint doesn't go very far but don't be stingy with it. It makes 6 pints of spray. I keep a pint of concentrate in the fridge so I can respond quickly at the first sign of mites. They multiply unbelievably fast. ### ⭐⭐⭐⭐ It works when applied directly to the mite as do ... *by J***C on April 8, 2015* It works when applied directly to the mite as do most all, but there are others out there at less a price. ## Frequently Bought Together - Sierra Natural Science - 217c - Concentrate Pouch - 6 fl oz (177.44 mL) Makes up to 32 fl oz - Sierra Natural Science - 209 - Concentrate Pouch - 1.25 fl oz (37 mL) Makes up to 32 fl oz - Sierra Natural Science - PC - Concentrate Pouch - 4 fl oz (118 mL) Makes up to 32 fl oz --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.at/products/623262920-217c-spider-mite-control](https://www.desertcart.at/products/623262920-217c-spider-mite-control) --- *Product available on Desertcart Austria* *Store origin: AT* *Last updated: 2026-05-07*