10 Best insect killer for plants in Canada

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Last Updated - 2025/05/11

Best Choice

01
OnGuard

OnGuard Pro-Perm Insect Killer 3.78L | Bed Bug Spray | Fast Action, Residual (24/7), Non-Flammable, Water-Based Solution | 0.35% Permethrin | Ants, Bedbugs, Spiders, Cockroaches, Ticks, Fleas

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8.7 Simple to use

8.0 Attachment

8.0 worth the money
Main highlights

TRIGGER SPRAYER NOT INCLUDED. READY TO USE: No mixing required.
Provides long-lasting indoor and outdoor control against crawling and flying insects, including ants, bedbugs, brown dog ticks, clothes moths, cockroaches, crickets, earwigs, fleas, house flies and spiders for up to 60 days.
GOOD QUALITY: Made in Canada. Health Canada Pest Control Product Registration Number 32333
Controls aphids and whiteflies on indoor ornamental plants
COMPOSITION: Contains of 0.35% Permethrin and sodium benzoate at 0.1% as a preservative. Also contains D-Limonene and Lemongrass fragrance.
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9.8

Exceptional

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02
Doktor Doom

Doktor Doom PM 50™ Concentrate Insect Killer for Fruit Trees, Vegetables and Ornamental Plants Concentrate, 1L

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Main highlights

No conspicuous odour
Made in Canada
For best results read label before use
Control listed pests on fruits, vegetables and ornamentals grown outdoors
0.50% Permethrin provides residual control of listed insects
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9.5

Excellent

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03
Safer's

Safer's 01-2022CAN Insecticidal Soap 500ml Concentrate Insect Killer - Kills Aphids, Mealybugs, Spider Mites, Whitefly, Soft Brown Scale, Psyllids, Rose Or Pear Slugs, Earwigs, and Elm Leafminer

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8.7 Attachment

8.7 Simple to use

8.0 worth the money
Main highlights

Weakened insects protective outer shell so they dehydrate and die
For use on vegetables, fruits, shrubs, trees, and greenhouse plantings
Controls aphids, mealybugs, spider mites, whitefly, soft brown scale, psyllids, Rose or pear slugs, earwigs, and Elm leafminer
Active ingredient: potassium salts of fatty acids 50. 5%
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9.3

Excellent

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Value for Money

04
Safer's

Safer's 31-6025CAN End-All Miticide/Insecticide/Aracicide 1L Ready-to-Use Spray

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8.9 Simple to use

8.0 Aroma

8.0 worth the money
Main highlights

Kills aphids, whitefly, scale, spider mites, mealybugs, caterpillars, beetles, chinch bugs, and other listed insects
Fast-acting contact killer spray
Controls all stages of insects - eggs, nymphs, Adults
Active Ingredients: potassium salts of fatty acids 1%, pyrethrins 0.01%
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9.2

Excellent

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05
Safer's

Safer's Insecticidal Soap Ready-to-Use Spray 01-5057CAN6

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9.3 Simple to use

8.2 worth the money

8.2 Aroma
Main highlights

Use on houseplants, ornamental foliage plants, flowering plants, and fruits and vegetables
Kills aphids, mealy bugs, spider mites, whiteflies, and more
Insecticidal soap dries out the waxy outer skin of insects
Does not kill beneficial insects such as ladybugs, praying mantis and others when used as directed
Can be used up to the day of harvest
Apply every 7-10 days when insects are present
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9.1

Excellent

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06
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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9.0

Excellent

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07
Garsum

Garsum Fruit Fly Trap Indoor and Outdoor, 36 Pack Gnat Sticky Traps for House Plants, Flying Insect Trap for Fungus Gnat,Mosquitos, White Flies

29% Off Free Shipping
Main highlights

Thoughtful Design: Reserved glue-free section so that it won't stick to your hands when you tear it off. Sharp bottom with equipped mini digging tool makes it easy for you to set up.
Multiple Scenarios Use: Specially designed to catch flying plant pests. Suitable for outdoor or indoor plants, especially potted plants. Captures a variety of flying insects such as whiteflies, mosquitoes, fungus mosquitoes, etc.
Long-lasting And Durable: UV-resistant and waterproof. Resistant to rain, heat, and other inclement weather conditions and will not weather or tear over time.
Eco-friendly And Natural Control: Harmless and odorless, disposable for easy disposal, can be used at home or on organic farms with confidence.
Based on physical principles: The Sticky Pest Trap is a bright yellow tape coated with a super sticky adhesive. Designed to attract and hold any insect pest that lands on it. Includes flying and crawling pests.
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8.8

Very Good

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08
Doktor Doom

Doktor Doom PM 0.025 Thrip Killer Plus, 1L

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Main highlights

Use on home vegetable gardens, fruit trees, ornamentals & flowers.
Made in Canada
Keep out of reach of children
Fall Webworm, Forest Tent Caterpillar, Greenfruit Worm, Grape Berry Moth, Grape Leaf Hopper, Gypsy Moth, Oblique-banded Leafroller, Leafminers, Open Feeding Sawfly, Oriental Fruit Moth, Pear Psylla (nymphs and adults), Plum Curculio, Potato Flea Beetle, Potato Leafhopper, Red Banded Leafroller, Spotted Tentiform Leafminer, Spruce Budworm, Tarnished Plant Bug, Whiteflies, White Marked Tussock Moth, Winter Moth, and Yellow Headed Spruce Sawfly.
Controls Aphids, Imported Cabbage Worm, Cabbage Looper, Codling Moth, Colorado Potato Beetle, Climbing Cut Worm, Cornworm, Corn Earworm, Corn Sap Beetles, Crucifer Beetle, Diamondback Moth Larvae, Douglas-fir Tussock Moth, Eastern Tent Caterpillar, Euonymus Webworm, European Corn Borer, Eye-Spotted Budmoth, Exposed Thrips,
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8.6

Very Good

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09
Safer's

Safer's 3-in-1 Garden Spray 1L Ready-to-Use Spray 49-5470CAN6

8.9 Simple to use

8.4 Easy to build

8.0 worth the money
Main highlights

Multi-purpose spray containing 3 garden solutions in 1
For use on roses, ornaments, beans, strawberries, grapes, currants, chrysanthemums, dahlias, and gooseberries
Controls powdery mildew, Black spot, rust, aphids, mealybugs, spider mites, whiteflies and many other listed pests
Active Ingredients: potassium salts of fatty acids 0.75%; sulphur 0.4%
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8.5

Good

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10
KNOCK DOWN

Knock Down - Diatomaceous Earth Insect Killer, Flea, Ant, Silverfish, Bed Bug Killer and Cockroach Killer Indoor and Outdoor Use, Food Grade Diatomaceous Earth Powder with Bait, 300g

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8.0 Simple to use

8.0 worth the money

8.0 Taste
Main highlights

SAFE FOR YOUR HOME: Made from food-grade freshwater diatomaceous earth (DE), this silverfish killer is safe for use around humans and pets. Our bed bug powder provides effective pest control without harsh chemicals, making it a natural choice for your home and garden.
MESS-FREE APPLICATION: The convenient shaker-top container makes it simple to apply the cockroach killer powder exactly where it’s needed. This odorless, non-staining insecticide powder won’t leave behind messy residues, making it a discreet solution for long-term pest control.
LONG-LASTING PROTECTION: Once applied, this powerful diatomaceous earth bed bug killer continues working long after initial use, forming a protective barrier against pests. Reapply in high-traffic areas as needed to maintain a pest-free environment indoors and outdoors.
INDOOR AND OUTDOOR USE: Designed for maximum flexibility, this diatomaceous earth food grade powder can be used both dry and wet, depending on the application. Use our cockroach powder inside your home to treat baseboards and carpets or apply it outdoors in gardens and patios.
FAST AND EFFECTIVE INSECT CONTROL: This natural diatomaceous earth insect killer works to eliminate bed bugs, fleas, ants, silverfish, cockroaches, and more. The dual-action diatomaceous earth powder dehydrates pests externally and damages their digestive systems internally for rapid results.
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8.4

Good

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