--- product_id: 103487958 title: "Nemasys Leatherjacket Killer Nematode Powder 100 sqm Coverage | Steinernema Feltiae, natural biological control, safe for children, pets, wildlife, autumn application" brand: "nemasys" price: "AR$113363" currency: ARS in_stock: true category: "Nemasys" url: https://www.desertcart.com.ar/products/103487958-nemasys-leatherjacket-killer-nematode-powder-100-sqm-coverage-steinernema-feltiae store_origin: AR region: Argentina --- # Perishable, use within 2 weeks for max effect Natural nematodes for eco-friendly control Treats up to 100 sqm at standard strength Nemasys Leatherjacket Killer Nematode Powder 100 sqm Coverage | Steinernema Feltiae, natural biological control, safe for children, pets, wildlife, autumn application **Brand:** nemasys **Price:** AR$113363 **Availability:** ✅ In Stock ## Summary > 🌿 Outsmart pests naturally—your lawn’s secret weapon! ## Quick Answers - **What is this?** Nemasys Leatherjacket Killer Nematode Powder 100 sqm Coverage | Steinernema Feltiae, natural biological control, safe for children, pets, wildlife, autumn application by nemasys - **How much does it cost?** AR$113363 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/103487958-nemasys-leatherjacket-killer-nematode-powder-100-sqm-coverage-steinernema-feltiae) ## Best For - nemasys enthusiasts ## Why This Product - Trusted nemasys brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Seasonal Precision:** Optimal autumn treatment targets newly hatched pests when soil temps hit 10°C for maximum impact. - • **Double Strength Power:** Spring and summer treatments require double strength for mature leatherjackets, ensuring year-round protection. - • **Safe for Family & Pets:** Completely safe for children, pets, and wildlife—use your lawn immediately after application. - • **Eco-Friendly Pest Control:** Harness millions of natural nematodes to eliminate leatherjackets without harmful chemicals. - • **Flexible Application Options:** Easily apply with watering can, EasyNem, or Nematode Applicator for precise lawn coverage. ## Overview Nemasys Leatherjacket Killer uses millions of Steinernema Feltiae nematodes to naturally control leatherjackets on lawns up to 100 sqm in autumn or 50 sqm at double strength. Safe for children, pets, and wildlife, it’s easy to apply with common garden tools and works best when soil temperatures reach 10°C. The product is perishable and should be used within two weeks of delivery for optimal results. ## Description Control leatherjackets naturally by treating with Nemasys Leatherjacket Killer containing millions of natural nematodes – mix with water and apply the nematodes (Steinernema Feltiae) to the infected lawn with a watering can or EasyNem Applicator or Nematode Applicator. Nemasys Leatherjacket Killer is a natural product and is totally safe for children, pets and wildlife and the lawn can be used immediately after application. It is best to treat in the Autumn i.e. Sept/Oct/Nov as this is when the leatherjackets are newly hatched, the soil is warm (needs a daytime soil temp of 10c) and are at the most susceptible to the nematodes. You can treat at other times of the year i.e. in the spring and summer, but you must treat at DOUBLE STRENGTH as the mature leatherjackets are much harder to kill. Nemasys Leatherjacket Killer is a perishable product, which will keep for up to 2 weeks in the fridge, so please order when you are ready to apply. This pack of Nemasys Leatherjacket Killer treats 100 sqm in the Autumn or 50 sqm when applied at double strength. Full instructions included. N.B. It is a perishable product which is sent by 1st class post so please order when you are ready to apply. ## Features - Control leatherjackets naturally by treating with Nemasys Leatherjacket Killer containing millions of natural nematodes. - It is easy to apply - mix with water and apply the nematodes (Steinernema Feltiae) to the infected lawn with a watering can, EasyNem Applicator or Nematode Applicator. Nemasys Leatherjacket Killer is a natural product and is totally safe for children, pets and wildlife and the lawn can be used immediately after application. - It is best to treat in the Autumn i.e. Sept/Oct/Nov as this is when the leatherjackets are newly hatched, the soil is warm (needs a daytime soil temp of 10c) and are at the most susceptible to the nematodes. You can treat at other times of the year i.e. in the spring and summer, but you must treat at DOUBLE STRENGTH as the mature leatherjackets are much harder to kill. - Nemasys Leatherjacket Killer is a perishable product, which will keep for up to 2 weeks in the fridge, so please order when you are ready to apply. - This pack of Nemasys Leatherjacket Killer treats 100 sqm in the Autumn or 50 sqm when applied at double strength. Full instructions included. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0753F65J5 | | Best Sellers Rank | 569 in Garden ( See Top 100 in Garden ) 1 in Grub Control | | Brand Name | Nemasys | | Customer Reviews | 4.3 4.3 out of 5 stars (1,962) | | Item Form | Powder | | Target Species | Insects | | Unit Count | 1 count | ## Product Details - **Brand:** Nemasys - **Item form:** Powder - **Target species:** Insects - **Unit count:** 1 count ## Images ![Nemasys Leatherjacket Killer Nematode Powder 100 sqm Coverage | Steinernema Feltiae, natural biological control, safe for children, pets, wildlife, autumn application - Image 1](https://m.media-amazon.com/images/I/71tWpr8xtHL.jpg) ## Questions & Answers **Q: Applied twice over the past month but we still have leatherjackets coming through. How long does it take?** A: Hi, The nematodes stay alive for up to 6 weeks, so we say to re-apply if needed every 6 weeks. The amount of applications will depend on the size of the infestation, so wait around 4-6 weeks from your last application to check. Kind regards, Lou **Q: How long we can store this at room temperature?** A: Hi, Once you receive them, please keep them in the fridge otherwise they will not survive. **Q: Ordered last Thursday and still waiting for delivery ! Today is Monday, would the nematodes die in transit with the mixed temperatures ?** A: No. Nematodes Direct know their business. You can even store them in the fridge when you get them **Q: If I'm not in to accept delivery straight away will the product perish as it presumably wont arrive refrigerated?** A: The shelf life is on the box I had no problems ## Frequently Bought Together - Nemasys Leatherjacket Killer nematode treatment (100 sqm) - Pronto Seed Premium Grass Seed 1.4 kg - Fast Growing, Hard-Wearing - Covers 84m² for Lawns & Overseeding - DEFRA Approved & Tailored for UK Climate (1.4kg) --- ## 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.com.ar/products/103487958-nemasys-leatherjacket-killer-nematode-powder-100-sqm-coverage-steinernema-feltiae](https://www.desertcart.com.ar/products/103487958-nemasys-leatherjacket-killer-nematode-powder-100-sqm-coverage-steinernema-feltiae) --- *Product available on Desertcart Argentina* *Store origin: AR* *Last updated: 2026-08-25*