Nematode Solutions

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Entomopathogenetic nematodes are regularly used in turf, vegetable gardens, greenhouses and grow room settings, to control multiple pest species like white grubs, fungus gnats, shoreflies, thrips, and caterpillars. The most common nematode species used are Heterorhabditis bacteriophora, Steinernema feltiae, and Steinernema carpocapsae.

Nematode Solutions by Pests

June Beetles / Grubs

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Japanese Beetles

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European Chafer / Grubs

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Fungus Gnats (Sciarid Flies)

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Shore Flies

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Thrips

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Crane Fly

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When to Apply Nematodes?

Greehouses/Grow Rooms: When larva or pupal stages begin to occur in the grow medium.

Turf/Vegetable Garden:

White Grubs (ON, QC) - Apply every year between end of August to the beginning of September when grubs are close to the top of the soil.
White Grubs (BC) - Apply every year between mid-July to early August when grubs are close to the top of the soil.
Crane Flies - Apply 2-3wks after the adults are visible on lawns where they are laying eggs. In most situations this would be in late July, August or early fall.

How to Apply Nematodes?

Use the product immediately or store at 2-6C (use product before best before date on package)
When you're ready to use the product, remove the packets from the box and let sit at room temperature for 30min.
After the 30min, stir package in 2L of water (water temps: 15-20C, pH 4-8). Let soak for 5min.
- Never leave a bucket unstirred for more than 30min. The nematodes will quickly settle to the bottom and suffocate.

Greenhouses:

When mixing the solution, apply immediately using an irrigation or spraying system.
- - Use as much water needed to apply the product to the area you would like to treat
  - If tank mixing with a compatible product, add the nematodes at the end of the fully filled tank
  - Make sure the contents stay agitated, this allows the product to be evenly distributed throughout the spray tank and spraying process
  - Use the whole mix in one application

Turf/Vegetable Gardens:

When mixing the solution, apply immediately using a Hose End Sprayer with garden hose or spray equipment
- Use as much water needed to apply the product to the area you would like to treat
- Spray the whole mix in one application
After applying the nematodes, a post-irrigation application should be done to wash the nematodes into the root zone
- Keep the soil moist for a few weeks after application

Proper Conditions for Application

Soil Temperature: 14-33C or 57-91F

Nematodes are very susceptible to Ultraviolet Light (UV). Avoid spraying in direct sunlight.

Do not apply with chemicals. Nematodes are susceptible to various pesticides.

Greenhouses:

All filters should be removed, especially if finer than 0.3mm (50 mesh).
Use a maximum pressure of 20 bar/290psi at nozzle.
Spray nozzle should be at least 0.5mm(500 microns - 35 mesh).
Avoid sprayers equipped with centrifugal or piston pumps.

Turf:

Pre-irrigation and post-irrigation for 2wks after application enhances the nematodes efficacy.
All filters should be removed on motorized sprayers, especially if finer than 0.3mm (50 mesh).

Mode of Action

Nematodes enter their pest and release symbiotic bacteria into the larvas body cavity. This bacteria converts the host tissue into a food source, on which the nematodes feed, develop, and reproduce on. The bacteria then kills the pest within a few days.

Protocol

Nematode Control	Curative	Repeat Applications
Greenhouse/Grow Room Application Soil Drench	250,000-500,000/m2 or 2.5 to 5 billion/ha A pack of 50Mill does 200sq.m (approx 200 lights) A pack of 500mill does 2,000sq.m (approx 2,000 lights)	Apply weekly or bi-weekly
Turf Application White Grubs (ON, QC)	The contents of a 50mill package will treat 2,500sq.ft or 0.06 acres, depending on the level of infestation The contents of a 500mill package will treat 25,000sq.ft or 0.6 acres, depending on the level of infestation	Apply every year between end of August to the beginning of September when grubs are close to the top of the soil.
Turf Application White Grubs (BC)	The contents of a 50mill package will treat 2,500sq.ft or 0.06 acres, depending on the level of infestation The contents of a 500mill package will treat 25,000sq.ft or 0.6 acres, depending on the level of infestation	Apply every year between mid-July to early August when grubs are close to the top of the soil.
Turf Application Crane Flies	The contents of a 50mill package will treat 2,500sq.ft or 0.06 acres, depending on the level of infestation The contents of a 500mill package will treat 25,000sq.ft or 0.6 acres, depending on the level of infestation	Apply 2-3wks after the adults are visible on lawns where they are laying eggs. In most situations this would be in late July, August or early fall.

Nematode Solutions

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