The following article compiles top castor oil-based repellents designed to deter moles and voles from lawns, gardens, and landscapes. These products use 100% castor oil formulations to disrupt pests’ feeding and sensory cues, providing a pet-safe, natural approach to lawn protection. Read on to compare select options, how they work, and key purchasing considerations to help you choose the right solution for your outdoor spaces.
| Product | Size | Formulation Focus |
|---|---|---|
| Natural Elements Mole And Vole Repellent (128 oz) | 128 oz | 100% castor oil, soil scent and taste disruption |
| Nature’s MACE Mole & Vole MACE Granules | 160 fl oz | Castor oil-based granules, broad coverage |
| PetraMax Castor Oil Mole Repellent For Lawns (135 fl oz) | 135 fl oz | Pet-safe castor oil formula, odor/taste deterrent |
| PetraMax Castor Oil Mole Repellent For Lawns (33.8 fl oz) | 33.8 fl oz | Natural castor oil solution, concentrated active ingredients |
| Baar MolEvict Lawn Mole Castor Oil (32 oz) | 32 oz | Concentrated castor oil scent and texture deterrent |
Natural Elements Mole And Vole Repellent

Product overview: This 128-ounce bottle is formulated with 100% castor oil to disrupt the sensory perception of moles and voles. The intention is to create a deterrent effect that reduces lawn damage as these pests relocate. The formulation targets the pests’ senses of smell and taste to influence feeding patterns. The product emphasizes a gradual, persistent effect, with a long-lasting barrier created by lingering scents and tastes in the soil.
Key features and considerations:
– Pure castor oil composition aimed at interrupting feeding cues.
– Designed to influence mole and vole behavior rather than delivering an immediate kill or harsh chemical.
– Gradual effectiveness suited for ongoing lawn protection through multiple seasons.
Nature’s MACE Mole & Vole MACE Granules

Product overview: Nature’s MACE offers a 160-ounce granulated formula designed for outdoor use, targeting moles, voles, gophers, and armadillos. The packaging claims coverage up to 8,000 square feet and emphasizes year-round effectiveness with a potent blend that claims to increase active ingredients compared to leading brands. The focus is on broad-area protection suitable for lawns, flowerbeds, and landscapes.
Key features and considerations:
– Large-area coverage for substantial outdoor spaces.
– Season-spanning protection to deter burrowing pests.
– Higher active ingredient concentration aimed at stronger deterrence.
PetraMax Castor Oil Mole Repellent For Lawns (135 fl oz)

Product overview: PetraMax presents a 135-ounce castor oil mole repellent designed for outdoor spaces. The formula emphasizes a natural, pet-safe approach that interferes with the feeding habits of moles and voles by leveraging the pest’s sense of smell and taste. The packaging notes a strong, multi-ingredient active profile intended to maximize deterrence and keep lawns mole/vole-free.
Key features and considerations:
– 100% castor oil-based natural formula.
– Higher active ingredient emphasis for stronger deterrence.
– Safety for pets and the environment, with emphasis on a non-toxic approach.
PetraMax Castor Oil Mole Repellent For Lawns (33.8 fl oz)

Product overview: This 33.8-ounce PetraMax formula is a compact option for smaller lawns or targeted treatment areas. It uses a natural castor oil base to influence mole and vole behavior through odor and taste cues. The product highlights pet safety and environmental responsibility while offering a practical solution for localized infestations.
Key features and considerations:
– Scalable for smaller yards or stair-step reapplication.
– Natural castor oil formula with emphasis on sensory deterrence.
– Pet-safe and biodegradable positioning within product messaging.
Baar MolEvict Lawn Mole Castor Oil (32 oz)

Product overview: Baar MolEvict offers a 32-ounce bottle designed to drive pests away by leveraging castor oil’s distinctive scent and texture. The product is framed as a 100% natural and eco-friendly repellent, suitable for lawns and gardens where moles, voles, gophers, and armadillos threaten turf and plantings. It emphasizes concentrating effects to encourage pests to relocate.
Key features and considerations:
– Concentrated natural formula for strong deterrence.
– Clear focus on repelling a range of subterranean pests.
– Environmentally friendly and pet-safe positioning.
Baar MolEvict Lawn Mole Castor Oil (1 Gallon)

Product overview: This gallon-size option from Baar expands coverage for large landscapes, offering professional-scale protection. It coats preferred food sources for burrowing pests, making lawns and surrounding areas less appealing. The product packaging underscores the natural, non-toxic nature of the castor oil-based deterrent and its suitability for extensive outdoor spaces.
Key features and considerations:
– Large-volume option for extensive properties.
– Targeted deterrence by coating pests’ food sources.
– Suitable for professional lawns and larger estates seeking durable protection.
Buying Guide: Castor Oil-Based Deterrents For Moles And Voles
When choosing a castor oil-based deterrent, consider a few practical dimensions to optimize results and value:
- Coverage area: Larger containers cover more square feet, reducing reapplication frequency. For big lawns, options like 160 oz or 1 gallon bottles provide extended protection.
- Active ingredient concentration: Some products advertise higher active ingredient levels or multiple active ingredients for stronger deterrence. Evaluate the size of your yard and the severity of infestation to balance strength with cost.
- Formulation type: Granules vs. liquids vs. sprays. Granules can be easier for uniform ground coverage; liquids may be favored for watering in and soil integration.
- Safety and environmental impact: Most products emphasize pet-safe, biodegradable formulations. If you have children, pets, or edible plants nearby, prioritize those with explicit safety claims.
- Seasonal performance: Some repellents offer year-round effectiveness; consider regional climate and pest activity patterns to align application timing with pest life cycles.
- Application method: Some products are designed for easy hose-delivery, while others require manual spreading. Check compatibility with your lawn equipment and sprayer options.
Depth of effectiveness varies by garden conditions, pest pressure, and soil type. Castor oil repellents work by altering scent and taste cues rather than delivering a quick kill, so consistent, long-term use often yields the best results. For best outcomes, apply as directed on the label, reapply after heavy rainfall, and combine with habitat modification (removing food sources like exposed grubs) to reduce mole and vole presence.