10 Best grub killer for vegetable garden in Canada

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Last Updated - 2025/09/01

Best Choice

01
Scotts

Scotts Grub B Gon Max Grub Killer 1.40kg
Main highlights

Works to effectively control beetle grubs that cause turf damage
Controls a range of beetle grubs, including Japanese beetle, May or June beetles, European chafer, and more.*
Apply with your favourite Scotts spreader
Active ingredient: Bacillus thuringiensis subsp. galleriae strain SDS-502
1.40 kg (3.08 lb) treats up to 125 m2 (1,345 ft2)
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9.6

Exceptional

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02
The Grub Grenade

Grub Grenade - Beneficial Predatory Soil Mites - Natural Predators of Fungus gnats, Thrips pupae, diapaused Spider mite, Root aphids, nematodes, phoretic Mites, and More! (20000+ mites/800-2000sqft)

9.1 Simple to use

8.0 worth the money
Main highlights

PLEASE NOTE!: If your local forecast is for near or below freezing, or hotter than 25C,, your order will be shipped as "Card for Pick-up" which means you will need to pick it up from the local Canada Post location.
One Application for Multiple Year or Lifetime Control
Not recommended for fast control of a severe fungus gnat infestation. Use preventatively or to cure healthy plants with a minor fungus gnat infestation. Use beneficial nematodes for a fast knockdown and follow up with these mites to give lasting control and protection. If using these mites to cure an established fungus gnat infestation, it can take up to 6 weeks to eliminate the fungus gnats.
Fresh -- Use as soon as possible! Do not store or refrigerate! Order as required. Produced From Canada's Largest Beneficial Insect and Mite Producer. No Hassle Application -- Just Open End and Sprinkle on Target Area
Controls Fungus Gnats, Pupating Thrips, Root Weevils, Root Aphids, Pathogenic Nematodes, and many more.
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9.5

Excellent

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03
Nemaglobe

Nema Globe 4003003 Grub Buster 3000Sqft Application

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8.0 Simple to use

8.0 worth the money
Main highlights

The immediate organic solution for grubs, fleas and soil larval pests in lawn and gardens. Ideal for all white grubs including Japanese beetle, May-June beetle and Chafer grubs in the soil
Sprayer not included
Not sold in NFLD
No refrigeration required
Easy to use, simply mix and spray
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9.3

Excellent

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Value for Money

04
Safer's

Safer's 17-2110CAN Safer's 17-2110CAN BTK Caterpillar Killer 100mL Concentrate

45% Off Free Shipping

9.7 Simple to use

9.1 worth the money
Main highlights

biological insecticide that controls caterpillars
Controls caterpillars including cabbage worm, tomato hornworm, tent caterpillars, gypsy moth, leafrollers, and other listed insects
Can be used on vegetables, fruit, trees, and ornamentals
Active Ingredient: Bacillus thuringiensis subsp. kurstaki, strain ABTS-51
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9.2

Excellent

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05
Safer's

Safer's 01-5060CAN Tomato & Vegetable Insect Killer 1L Ready-to-Use Spray

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Main highlights

Ready to use spray - no mixing required
Product dimensions: 27.31 inches (H) x 8.26 inches (L) x 12.07 inches (W)
One application lasts up to 10 days
1 Liter covers up to 70 square feet of plantings
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9.1

Excellent

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06
Scotts

Ortho Slug B Gon Ready-to-Use Slug & Snail Bait, Large 1 kg Recloseable Bag, for Gardens, Granular Bait to Safely and Naturally Kill Slug and Snails

18% Off
Main highlights

Provides immediate protection to garden plants
Ideal for all types of garden plants, including vegetable and flower gardens, ornamental shrubs, berry plants and fruit
Effectively creates a barrier to slugs and snails
Affected snails and slugs die within 3-6 days
Active Ingredient: 0.28% Iron (present as ferric phosphate)
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9.0

Excellent

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07
Nemaglobe

Nema Globe 4 x 5 Million Beneficial Nematodes

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8.7 Simple to use

8.0 worth the money
Main highlights

We do not recommend using/ordering the product when temperatures are below freezing.
Solution for gnats, whitefly, thrips and on a variety of fly larvae
Easy to apply with a watering can or hose-end sprayer for outdoor uses.
Can be used on all indoor house plants, tropical plants and any time you add or change potting soil.
Bee and Beneficial safe. Fungus gnat control nematodes are microscopic worms which seek out larval stages of various fly and other diptera insects which develop in the soil
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8.9

Very Good

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08
BIOPROTEC

BIOPROTEC 31-173 Fongicide and Bactericide for Tomato and Garden

Free Shipping
Main highlights

Made in Canada
For the control of white spots on your fruits and vegetables
Biological Phytosanitary Protection
Approved for organic farming
1 liter of concentrate
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8.8

Very Good

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09
Nemaglobe

Nema Globe Pot Popper Organic Indoor Fungus Gnat & Insect Control 8x1 Million Beneficial Nematodes (S.Feltiae) , white

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8.0 Simple to use

8.0 worth the money
Main highlights

Slowly releases nematodes into soil for longer lasting control, use on indoor, greenhouse, growroom plants as well as outdoors in containers, use every time you change potting soil
Proudly Made In Canada
Pot Popper nematodes are a fast and easy way to control fungus gnats, thrips and other pests in indoor and outdoor potted plants
NEW ARRIVE ALIVE TECHNOLOGY our Pot Poppers can be stored at room temperature until use, patent pending infusion bio-pouch technology, no need for ice packs in order to guarantee live shipments
Each popper globe contains 8 bio-pouches (treats 8 five gallon potted plants)
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8.6

Very Good

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10
The Environmental Factor

Environmental Factor 40 x 1 Million Beneficial Nematodes (S.Feltiae) Pot Popper Gnat & Thrip Control

Free Shipping

8.2 Simple to use

8.0 worth the money
Main highlights

Works on a variety of soil dwelling pests
Use on any container plant indoors, outdoors or in greenhouse
Exclusive non refrigerated nematode formulation
Easy to use slow release formulation, with no mixing required
6 month room temperature shelf life
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8.4

Good

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