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Nematodes - Lawn Guardian

Nematodes are very tiny worms that live in the soil and attack and kill grubs! 100% non-toxic, safe for children, pets, birds, fish, plants and earthworms


Apply in spring when soil temperature is above 10°C (50°F). 

Reapply in late August/September to STOP fall grub damage and PREVENT spring grub damage.




Canadian beneficial nematodes are an all-natural, chemical-free alternative to insecticides for lawn grub control and works to prevent:

Iris Borers
Vegetable maggots
Fly maggots
Corn rootworms
Strawberry root weevils
European corn borers
White grubs
Sod webworms
Fungus gnats
Lawn grubs
Flea beetles
Fly maggots
Many other insects that spend part of their life cycle in the root zone


What’s in the box:

10 Million microscopic Nematodes



How much do I need?

10 million treats 185.8 sq. m (2,000 sq. ft.)
25 million treats 464.5 sq. m (5,000 sq. ft.)
50 million treats 929 sq. m (10,000 sq. ft.)
100 million treats 1,858.1 sq. m (20,000 sq. ft)


Our Nematodes are stored in our Cooler, so please ask for assistance.  Aside from the original Lawn Guardian™ Nematodes that you know us for, we now carry Nematodes especially for the garden! The package contains 2 sponges that can be used in separate areas, or for 2 applications!


Protect Your Garden Today!