Applied twice over the past month but we still have leatherjackets coming through. How long does it take?

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

How long we can store this at room temperature?

Hi, Once you receive them, please keep them in the fridge otherwise they will not survive.

Ordered last Thursday and still waiting for delivery ! Today is Monday, would the nematodes die in transit with the mixed temperatures ?

No. Nematodes Direct know their business. You can even store them in the fridge when you get them

If I'm not in to accept delivery straight away will the product perish as it presumably wont arrive refrigerated?

The shelf life is on the box I had no problems

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Leatherjacket Killer Nematode Powder 100 sqm Coverage | Steinernema Feltiae, natural biological control, safe for children, pets, wildlife, autumn application

Product ID: 103487958

Details

Brand
Nemasys
Item form
Powder
Target species
Insects
Unit count
1 count

⏳Perishable, use within 2 weeks for max effect

🌱Natural nematodes for eco-friendly control

📏Treats up to 100 sqm at standard strength

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Description

🌿 Outsmart pests naturally—your lawn’s secret weapon!

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.

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.

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

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Excellent communication throughout the order process. Product is perfect.

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Good experience, but the tracking updates could be better.

2 months ago

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B/.95

Duties & taxes included

In stock

Sold byAmazon PanamaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Panama.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

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Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

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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

Leatherjacket Killer Nematode Powder 100 sqm Coverage | Steinernema Feltiae, natural biological control, safe for children, pets, wildlife, autumn application

Details

Details

Description

Specifications

Common Questions