

🌿 Outsmart pests naturally — your lawn’s secret weapon!
Nemasys Leatherjacket Killer is a biological nematode treatment designed to control leatherjackets—the damaging larvae of crane flies—across 400 sqm. Best applied in early autumn at soil temperatures above 12°C, it offers a natural, chemical-free solution that disrupts pest life cycles and protects grass roots. The product requires refrigeration and timely use within two weeks to maintain effectiveness, with flexible dosing options for year-round lawn care.
| ASIN | B07H5P2TR9 |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 33,902 in Garden ( See Top 100 in Garden ) 208 in Weed Killers |
| Colour | 4 Count (Pack of 1) |
| Customer Reviews | 3.8 3.8 out of 5 stars (49) |
| Date First Available | 3 April 2019 |
| Size | 4 Count (Pack of 1) |
A**S
Does the business.
Excellent product, good results.
J**T
Waste of money
I have spent a lot of money on this treatment and not worked l used double strength on every time done it on 3 occasions this month.and 4 packs every time.still finding new spots where there eating the roots so frustrating.
J**C
It works, used 8 on delivery day a five
2024 I bought 8 packs, and used all on the same day as delivered and i have not seen even 1 nematodes leather jackets larva nor seen any crane flies on my lawn since, and the lawn is on its way to recovery, off course with re-seeding and grass feed reapplications.
A**R
Treatment For Leather Jacket
Treatment of leather jacket infestation on a bowling green
G**A
Didn’t work very well
Used as per instructions but didn’t seem to do very much sadly
R**D
Nematodes on time
The package came on time and was intact. Time will tell if the nematodes have been effective and the product worthwhile/
A**M
Definately kills them
Definately kills them
A**Y
Do not buy!!!
If you are reading this comment and wondering if you should buy, this is a total waste of money. I followed the advice of the seller to apply from march when the weather is above 10°. I ordered another one two weeks ago when the weather was good and I applied immediately according to the instructions. This is the second time I have applied on the same area and when it rains my whole pavement is covered with leather jackets larvae
Trustpilot
1 month ago
1 day ago