Best Castor Oil Repellent For Voles: 10 Options Compared

#1 · Best Overall

1. Petra Castor Oil Repellent

• Form: Oil

Best for: Pet-conscious liquid-oil shoppers.

Why it ranks #1: Its listing explicitly targets moles and voles with a castor-oil formula, and the 33.8-fluid-ounce bottle gives buyers a clear liquid-format option.

PetraMax highlights a 100% castor oil formula and three times the active ingredients of other castor-oil mole products, giving lawn owners a concentrated liquid option. Its listing identifies the formula as pet-safe and targets moles, voles, and gophers, making it relevant for buyers seeking an oil-based yard repellent.

The 33.8-fluid-ounce oil format suits shoppers looking for a liquid castor-oil product rather than granules. Petra says its formula has three times the active ingredients of other castor-oil products and is intended to affect feeding habits, connecting its concentration claim with a specific deterrent approach. The listing also describes the formula as pet-safe. No application rate or coverage figure is supplied here, so buyers cannot use the listing to plan how much lawn one bottle treats.

Skip it if you need a listed coverage figure to plan lawn treatment; Victor granules provide a ready-to-spread alternative.

Choose PetraMax if a pet-safe, castor-oil liquid with a stated concentration claim suits your mole and vole problem. Its listing does not give a coverage rate, so it is a less informative fit for acreage planning.

Listed on Amazon as: PetraMax Castor Oil Mole Repellent for Lawns – Best Anti Mole and Vole Repellent of Outdoor Space – How to Get Rid of Moles in My Yard, Garden Or Lawn, Safe and Effective Vole Deterrent (33.8 fl oz)

#2 · Pure Oil Formula

2. Nature's MACE Mole & Vole Mace

• Weight: 2 lb
• Volume: 32 fluid oz
• Form: Oil
• Size: 32 Fl Oz (Pack of 1)

Best for: Season-long liquid-treatment planners.

Why it ranks #2: The 32-fluid-ounce liquid lists castor oil as its sole ingredient and specifically targets moles and voles, making the use-case fit direct.

Nature’s MACE lists 100% castor oil and describes its treatment as water-activated and time-released, making it a liquid option for buyers planning seasonal mole and vole control. The formula is said to taint food sources and leave an unpleasant smell, connecting its ingredient with two deterrent mechanisms.

The 32-fluid-ounce oil format suits buyers who want to prepare a liquid treatment, and the directions give a mixing sequence: combine castor oil with dish soap, then dilute part of that mixture in water. Nature’s MACE describes the product as water-activated and time-released for all-season use, which makes watering relevant to its stated operating approach. Its listed targets include moles and voles, with additional verified information also naming gophers and armadillos.

Skip it if you want a granular product that avoids preparing a liquid mixture; Fertilome MoleGo is sold as granules.

Nature’s MACE fits buyers willing to mix and water in a castor-oil treatment for seasonal mole and vole control. Its time-released, water-activated approach is relevant to routine lawn care, but the preparation steps are part of the fit.

Listed on Amazon as: Nature's MACE Mole & Vole Mace Mole Repellent 32 oz

#3 · Stated Coverage

3. Baar MolEvict Castor Oil

• Weight: 2.14 lb

Best for: Hose-sprayer lawn applicators.

Why it ranks #3: This liquid targets voles and other burrowing pests and states coverage of 5,000 square feet for its 32-ounce size.

Baar MolEvict’s 32-ounce bottle is listed to cover 5,000 square feet, giving lawn owners a defined treatment area to plan around. Its directions call for mixing the castor-oil product with unscented biodegradable dish soap in a garden hose sprayer, tying application to equipment many yard-care routines can accommodate.

The specified 5,000-square-foot coverage helps buyers estimate whether the 32-ounce size matches a lawn or garden area. Application requires mixing one cup of MolEvict with one cup of unscented, biodegradable liquid dish soap, then placing the mixture in a garden hose sprayer. That adds a preparation step, but the hose-sprayer method supports treating an area rather than scattering granules by hand. Baar describes the repellent as 100% natural and targets moles, voles, gophers, and armadillos.

Skip it if you prefer a ready-to-spread granular application; Victor Mole and Gopher Repellent comes in granules.

MolEvict fits lawn owners who can prepare a hose-sprayer mixture and want a stated coverage area for planning. Allow for the dish-soap mixing step, and check whether the listed 5,000 square feet matches your treatment area.

Listed on Amazon as: Baar MolEvict Castor Oil for Lawns, 32 oz, Covers 5,000 Sq Ft

#4

4. Mysora Castor Oil Repellent

• Weight: 2.5 lb
• Volume: 1 liters
• Size: 1 Count (Pack of 1)

Best for: Plant-based outdoor treatments.

Why it ranks #4: The listing specifies 100% plant-derived castor oil and names voles, with a 1-liter outdoor formula for lawns and gardens.

Mysora specifies a 100% pure, plant-derived castor oil formula, giving gardeners a clearly identified ingredient base for outdoor vole and mole deterrence. The listing says the oil influences pests’ sensory perception to make lawns and gardens less attractive, while also describing the formula as biodegradable.

The one-liter oil volume provides a defined amount for buyers comparing liquid treatment sizes, while the plant-derived castor oil is presented as the active basis for discouraging moles, voles, and gophers from settling in outdoor spaces. Mysora connects the formula to sensory perception, explaining how it aims to make a property less attractive rather than describing a trapping method. Its biodegradable formulation may suit shoppers prioritizing that material feature, though the supplied listing gives no application rate or coverage area.

Skip it if you need a stated coverage area before buying; Baar MolEvict lists coverage of 5,000 square feet.

Mysora is a fit for gardeners seeking a plant-derived, biodegradable castor-oil product for outdoor areas. Consider it when the listed ingredient approach matters more than a specified treatment rate, since no coverage figure is provided.

Listed on Amazon as: Mole and Vole Repellent, 100% Castor Oil Mole Repellent for Lawns and Yard, Castor Oil Vole Deterrent, Gopher Deterrent, Outdoor Lawn & Garden(33.8 Fl oz)

#5 · Organic Liquid

5. Baar Organic MolEvict

• Weight: 2.2 lb
• Form: Oil

Best for: Certified-organic castor-oil buyers.

Why it ranks #5: This 32-ounce liquid is described as 100% USDA Certified Organic castor oil and covers up to 5,000 square feet, though vole targeting is less explicit.

Baar MolEvict Organic specifies 100% USDA Certified Organic castor oil, giving buyers a clear organic ingredient credential for lawn and garden protection. The 32-ounce oil product is described as a potent, non-toxic solution, making it a liquid option for shoppers who prioritize that stated formulation.

The 32-ounce oil format provides a defined container size for buyers choosing a liquid castor-oil treatment. Baar identifies the formula as 100% USDA Certified Organic castor oil and describes it as non-toxic, allowing shoppers to weigh both the organic certification and the stated formulation claim. The product title lists coverage up to 5,000 square feet, which helps with area planning. The supplied details do not explain how to apply it, so buyers should not assume a particular mixing or spraying workflow.

Skip it if you need directions for preparing a hose-sprayer mixture; Baar MolEvict’s other 32-ounce product provides those directions.

MolEvict Organic suits shoppers prioritizing USDA Certified Organic castor oil in a liquid format and needing a listed coverage figure. Its supplied details leave application steps unspecified, so it is not the clearest choice for workflow planning.

Listed on Amazon as: Baar MolEvict Organic Castor Oil, 32 oz, Covers Up to 5,000 Sq Ft

#6 · Castor Oil Granules

6. Victor Mole and Gopher Repellent

• Weight: 10 lb
• Volume: 10
• Form: Granule
• Size: 160 oz (Pack of 1)

Best for: Granule-based tunnel treatments.

Why it ranks #6: Its 10-pound granular formula contains 10% castor oil and explicitly includes voles among the burrowing animals it repels.

Victor’s tunnel-penetrating castor-oil granules are described as reaching burrows quickly, giving homeowners a dry application format aimed at activity below the lawn surface. The dual-action formula targets both smell and taste, and the listed pest range includes voles alongside moles, gophers, and armadillos.

The 10-pound granule bag offers a spreadable alternative to liquid castor-oil products, while its tunnel-penetrating formula is described as absorbing into the ground. Victor says the granules make the tunnel unpleasant by smell and taste, linking the application format with two sensory deterrent routes. The directions advise against treating the entire lawn in one application, so buyers should plan targeted treatment of active areas rather than blanket coverage. The listed ingredients include 10% castor oil.

Skip it if you want a liquid mix for hose-sprayer application; Baar MolEvict provides directions for that method.

Victor suits buyers who prefer castor-oil granules and can focus treatment on active areas. Its tunnel-penetrating and dual-action claims address burrowing pests, but the directions call for avoiding whole-lawn treatment in one application.

Listed on Amazon as: Victor Mole and Gopher Repellent, 10 lb Bag, Castor Oil Granules

#7

7. I Must Garden Mole & Vole Repellent

• Weight: 10 lb
• Volume: 10 liters
• Form: Granule
• Size: 160 oz (Pack of 1)

Best for: Water-in granule lawn users.

Why it ranks #7: This 10-pound granular product specifically targets moles and voles and is described as a natural, biodegradable formula for lawn or garden use.

I Must Garden’s professional-strength granules are presented as a homeowner option, with instructions to apply them to a lawn or garden and water them in. The listing emphasizes natural ingredients and botanical oils, giving buyers a granular approach that does not rely on setting or checking traps.

The 10-pound granule format supports spreading across lawns and gardens, while watering the product in is part of the stated workflow. I Must Garden says its concentrated oils soak into deep tunnels and burrows, linking the water-in step with treatment below the surface. The product is described as biodegradable and safe for pets, people, and the environment, and the listing says it contains no harmful chemicals or poisons. Those claims may matter to buyers treating areas used by people or pets.

Skip it if you need a liquid castor-oil treatment instead of granules; PetraMax is listed as an oil formula.

This is a fit for homeowners who want granules, can water them into the ground, and value the listed botanical-oil and biodegradable features. Consider the watering step when choosing a treatment workflow for your lawn or garden.

Listed on Amazon as: I Must Garden Mole & Vole Repellent: Professional Strength – Natural – 10lb

#8

8. Chase Mole & Gopher Repellant

• Weight: 6 lb
• Volume: 6 liters
• Form: Oil
• Size: 96 oz (Pack of 1)

Best for: Large-area oil-treatment shoppers.

Why it ranks #8: The listing names voles and identifies castor oil as its active ingredient; its 6-pound product covers 6,000 square feet.

Chase lists coverage of 6,000 square feet for its six-pound product, giving lawn owners a defined area for planning a treatment. Castor oil is identified as the active ingredient, and the product is described as repelling moles, gophers, voles, and other burrowing animals through taste, smell, and feel.

The stated 6,000-square-foot coverage helps buyers assess the product against a lawn or planted area before application. Chase describes the castor oil’s taste, smell, and feel as the deterrent mechanism, while its biodegradable designation and stated safety for children, pets, wildlife, and plants may suit shared outdoor spaces. The listing says it is effective for up to 60 days, a time boundary buyers can use when considering how often treatment may need attention.

Skip it if you want a granule product with a stated spread rate; Fertilome MoleGo specifies one pound per 500 square feet.

Chase fits buyers treating lawns, gardens, or planted areas who want a stated coverage figure and a listed duration. Its up-to-60-day claim is a useful planning boundary for anyone considering repeat applications.

Listed on Amazon as: Chase Mole & Gopher Repellant 6 Lbs.

#9

9. Nature's MACE Mole & Vole Granules

• Weight: 22 lb
• Form: Granules

Best for: Large-bag granular applications.

Why it ranks #9: The 352-ounce granular listing specifies 30% castor oil and directions of 1 pound per 800 square feet, but its supplied title is less vole-specific.

Nature’s MACE offers a 352-ounce granule product with a listed 30% castor-oil ingredient, giving buyers a substantial dry-format option for burrowing-animal control. Its ingredient list also names garlic, citronella oil, and thyme oil, so the formulation extends beyond castor oil alone.

The 22-pound granule format suits buyers looking for a larger quantity of dry product, while the directions specify applying one pound per 800 square feet. That rate gives shoppers a concrete basis for planning coverage and spreading the treatment. The ingredient list includes 30% castor oil alongside garlic, citronella oil, and thyme oil, distinguishing the formula from products listing castor oil alone. Directions indicate the granules can be applied directly from the container, supporting a straightforward application workflow.

Skip it if you want a castor-oil-only formula; Nature’s MACE 32-ounce liquid lists 100% castor oil.

This Nature’s MACE product fits buyers who want a large granule quantity and a stated per-area application rate. Its multi-ingredient formula is a key fit consideration for shoppers comparing it with products listing castor oil alone.

Listed on Amazon as: Nature's MACE Mole & Vole Repellent 352 oz Granules

#10

10. Fertilome MoleGo Granules

• Weight: 10 lb
• Form: Granules

Best for: Spreader-equipped lawn owners.

Why it ranks #10: This 10-pound granular product covers up to 5,000 square feet, but its listing focuses on moles and does not identify castor oil as an ingredient.

Fertilome MoleGo specifies application by handheld, drop, or broadcast spreader, giving lawn owners several ways to distribute its granules. The 10-pound bag is listed to cover up to 5,000 square feet, while the directions provide a per-area rate for planning treatment across lawns and gardens.

The spreader compatibility supports choosing an application method based on the equipment already available, and the stated rate of one pound per 500 square feet helps buyers calculate how much area to treat. Fertilome lists coverage up to 5,000 square feet for the 10-pound bag, connecting that rate to a practical lawn-planning figure. The directions call for early spring, mid-summer, and early fall applications for year-round control, and light watering can speed release and soil penetration.

Skip it if you need a liquid castor-oil formula rather than spreader-applied granules; PetraMax is listed as an oil product.

MoleGo fits buyers with a spreader who want a stated application rate and seasonal schedule for lawn treatment. The granules can also be used around new plants, trees, and shrubs, but the directions call for recurring seasonal applications.

Listed on Amazon as: Fertilome (11317) MoleGo Mole & Burrowing Animal Repellent, 10 lbs