Safer Brand Critter Ridder RTU Pepper-Based Animal Repellent Spray

Description

If you have ever woken up to paw prints in your flowerbeds or a shredded trash bag on the curb, you know how relentless critters can be. Safer Brand 5935 Critter Ridder Animal Repellent Ready-to-Use Spray, 32 fl oz, helps you take back your yard with a humane, pepper-based formula that animals want to avoid. It repels by smell and by taste, and a single application can protect treated areas for up to 30 days.

This ready-to-use spray is labeled to deter common nuisance visitors, including cats, dogs, raccoons, skunks, squirrels, and groundhogs, so you can focus on your plants and your peace of mind.

Key Customer Benefits

• Two-sense deterrent that teaches critters to avoid the area. The pepper-based formula works on smell and taste, so animals learn quickly that your beds and bins are not worth the risk.
• Stays active for up to 30 days, with real-world guidance on reapplication. A single treatment can protect for about a month, and the label explains to reapply sooner after heavy, prolonged rain, which is exactly when scents fade fastest outdoors.
• Covers the usual suspects you actually see. Labeled to repel dogs, cats, groundhogs, squirrels, raccoons, and skunks, plus it can be sprayed on and around bird feeders to discourage squirrel raids.
• Clear coverage you can plan around. Use it as a perimeter or spot treatment and know what you are getting. At 0.10 ounce per square foot, a 32 ounce bottle treats about 320 square feet. For heavy digging pressure in landscaped beds at 0.25 ounce per square foot, the same bottle treats about 128 square feet.
• Ready to use with everyday applications that make sense. No mixing and no measuring, just shake and spray along garden edges, around trash areas, and on problem spots. The product is explicitly labeled Ready To Use.
• Humane and plant-conscious when used as directed. It repels rather than harms, and the label gives practical safeguards, such as outdoor use only, do not spray food or feed crops, test sensitive ornamentals first, and avoid structural surfaces that can stain. Those details help you protect the right places without creating new problems.
• Extra help for trash nights. The label even covers how to treat garbage bags, cans, and containment areas, plus a simple timing tip, treat within 72 hours of pickup for the best protection against tearing.

 

Product Description

What this ready-to-use spray is

Safer Brand 5935 Critter Ridder Animal Repellent Ready-to-Use Spray is a pepper-based wildlife deterrent that relies on three naturally derived actives, oil of black pepper, piperine, and capsaicin, to make treated areas unattractive to animals you actually see around the yard, including dogs, cats, raccoons, skunks, squirrels, and groundhogs. The formula repels by odor and by taste, and one application can remain effective for about 30 days under normal conditions.

For accuracy, here are the EPA-listed percentages by weight, oil of black pepper 0.480 percent, piperine 0.185 percent, and capsaicin and related capsaicinoids 0.032 percent. These capsaicinoids are the same chili pepper compounds that trigger a strong sensation in mammal sensory nerves.

How it works on animals, and why it does not bother birds

When a curious animal sniffs, licks, or steps on a treated surface, capsaicinoids activate pain and irritation receptors in the nose and mouth. Animals learn quickly that the spot is not worth visiting, which is the behavioral training you want from a humane repellent. In contrast, birds lack the same taste response to capsaicin, which is why label directions even allow direct treatment of bird feeders as part of a squirrel control plan.

What makes Critter Ridder different

This RTU is unusually specific about where, how much, and how often to apply, which helps you plan coverage and results. The label sets clear rates, 0.10 ounce per square foot for perimeter and plant applications, and 0.25 ounce per square foot in landscaped beds where digging pressure is higher. At those rates, a 32 ounce bottle treats about 320 square feet for light to moderate pressure, or about 128 square feet where you need a stronger barrier.

It also includes situational directions you do not always see on repellents, for example, treat garbage bags and cans and, for best results, spray bags within 72 hours of pickup. There is even a bird feeder protocol, wet the area around the feeder and you may spray the feeder itself to enhance repellency, with a simple spot test to avoid staining wood or plastic.

Where it shines in real yards

Clients call me most about three hot spots, garden edges, trash night, and bird feeder raids.

• Garden edges and beds. For a five foot perimeter around lawns or garden plots, apply 0.10 ounce per square foot, then refresh about every 30 days, sooner after prolonged heavy rain. In beds where cats or squirrels dig, switch to 0.25 ounce per square foot on the soil or mulch so the barrier is strong right where paws land.
• Trash and cans. Raccoons and skunks work by scent. Spray the entire bag surface, including the bottom, and treat the container and pad where it sits. Timing matters, do the bags within 72 hours of pickup to cover the highest risk window.
• Bird feeders. Squirrels key in on poles and nearby trunks. Wet those climb paths and, if needed, spray the feeder too, then combine with physical tactics like distance from launch points or a baffle for best results. Birds keep visiting since capsaicin does not deter them, but squirrels quickly decide the buffet is not worth it.

Practical cautions that build trust

The label is candid about surfaces. This product can stain structural and painted materials, so do not spray siding, decks, fences, driveways, vehicles, or similar architectural surfaces, and avoid drift onto those areas. It is for outdoor use only, and it should not be applied to food or feed crops. Apply on dry surfaces in mild, dry weather so the spray dries promptly, which helps it set and last.

What to pair it with for stubborn visitors

No repellent is a silver bullet. For persistent squirrels at feeders or clever raccoons, combine the spray with simple physical tactics that reputable birding and home care sources recommend, for example, baffles, feeder placement beyond jumping distance, and quick cleanup of spilled seed. This stacked defense reduces the attractants while the spray provides the sensory deterrent.

Product Specifications

Spec	Details
Product name and model	Safer Brand Critter Ridder Animal Repellent Ready-to-Use Spray, 32 fl oz, Model 5935.
EPA registration	EPA Reg. No. 50932-16, Animal Repellent RTU.
Active ingredients, by weight	Oil of black pepper 0.480 percent, piperine 0.185 percent, capsaicin and related capsaicinoids 0.032 percent.
Format and size	Ready-to-use trigger spray, 32 fl oz bottle.
What it repels	Dogs, cats, raccoons, skunks, squirrels, and groundhogs, repels by odor and taste.
Longevity	One application can remain effective for up to 30 days under normal conditions. Reapply sooner after heavy, prolonged rain.
Application rates	Perimeter or plants, apply 0.10 oz per square foot, about 3 full trigger sprays. Landscaped beds with digging pressure, apply 0.25 oz per square foot, about 5 full trigger sprays.
Estimated coverage per bottle	About 320 sq ft at 0.10 oz per square foot, or about 128 sq ft at 0.25 oz per square foot, calculation based on label rates and a 32 oz bottle. Retail listing also cites up to 320 sq ft for the 32 oz RTU.
Where to use	Lawns and garden perimeters, landscaped beds, ornamental plants, garbage bags and containers, around bird feeders. Follow label directions, including five foot perimeter guidance and specific instructions for feeders and trash.
Surface cautions	Can stain structural or painted surfaces, for example siding, decks, fences, driveways, vehicles, and sidewalks. Apply only to intended outdoor areas and avoid drift onto structures.
Use restrictions and safety	Outdoor use only. Do not apply to food or feed crops. Causes moderate eye irritation, avoid contact with skin, eyes, or clothing. Wear basic protective clothing as listed on the label.
Storage and disposal	Store in a cool, dry place, protect from freezing and heat, keep container tightly closed. Dispose per label, never down a drain.
Bird feeder note	You may spray the feeder itself to enhance repellency. Spot test wood or plastic to check for staining, then treat poles and nearby climb paths.
Trash night tip	For best results, spray entire bags, including bottoms, and treat cans and pad. Treat bags within 72 hours of pickup.
Physical properties (SDS)	Appearance, brown liquid. pH about 5.3. Flash point about 149 degrees Celsius. Not regulated for transport.
Manufacturer	Woodstream Corporation, Lititz, Pennsylvania, USA.
Certifications on RTU spray	EPA registered. No OMRI claim is shown on the RTU spray master label. Do not assume the RTU is OMRI just because some Critter Ridder formats are.

 

How to Apply the Critter Ridder 32 oz Ready-to-Use Spray

Before you spray, match the product to the problem

This Ready-to-Use pepper-based animal repellent is labeled for dogs, cats, groundhogs, squirrels, raccoons, and skunks. It repels by smell and by taste for about thirty days in normal weather. If your issue is deer or rabbits, use the separate Critter Ridder Deer and Rabbit Repellent product, which has different directions and claims.

Prep the site for success

Work on a dry day with light breeze, low humidity, and no rain in the immediate forecast. The label requires dry surfaces and conditions that favor quick drying. Clear food attractants first, for example secure trash, pick up spilled seed and fallen fruit, and do not leave pet food outdoors. Wear basic protection such as eye protection, gloves, long sleeves, and wash up after use.

Important surface caution: this spray can stain structural or painted materials. Keep it off siding, decks, fences, driveways, vehicles, and sidewalks, and avoid drift. It is for outdoor use only and must not be applied to food or feed crops.

Application patterns that work

A. Perimeter bands around lawns and gardens

Create a five foot wide band around areas you want protected. Use the spray setting and apply about 0.10 ounce per square foot, which equals roughly three full trigger sprays per square foot. This is the right pattern for general entry pressure from cats, dogs, skunks, groundhogs, and raccoons.

B. Landscaped beds where animals dig

Where you see paw prints or fresh digging in mulch, strengthen the barrier. Treat the mulch or soil itself at 0.25 ounce per square foot, about five full trigger sprays per square foot. This puts smell and taste exactly where paws land.

C. Ornamental plants that get nibbled

Spray leaves, stems, flowers, and branches to the point of runoff. Also treat the soil around the plant for extra protection. Do a small test spot first, avoid treating new transplants or drought stressed plants, and skip applications when temperatures exceed ninety degrees Fahrenheit.

D. Garbage bags, cans, and the pad

For trash night raids, treat the entire surface of each bag, including the bottom, then spray the container and the ground or pad where it sits. Time matters. The label calls out a simple timing tip, treat bags within seventy two hours of pickup to cover the highest risk window.

To reduce repeat visits, pair the spray with better trash discipline: tight fitting lids, cords or weights on lids, and storing bins in a shed or garage until pickup day. These husbandry steps are recommended by humane wildlife groups and local authorities.

E. Bird feeders and squirrel runways

Wet the area around the feeder including the pole, nearby branches, and tree trunk. You may spray the feeder itself to boost repellency, but spot test wood or plastic to check for staining first. Use the spray setting on the feeder and the stream setting on poles and trunks. Apply about 0.10 ounce per square foot, roughly three full trigger sprays per square foot. For stubborn squirrels, add a physical barrier such as a baffle and mind your distances, eight to ten feet from launching points and about four feet off the ground. Birds keep visiting since capsaicin primarily affects mammals.

Coverage planning

At the lighter rate above, a 32 ounce bottle treats about 320 square feet. If you are using the heavier bed rate, the same bottle covers about 128 square feet. Those numbers come straight from the label’s rate and coverage math for this size.

Dry time, reapplication, and weather

Let the spray dry completely before people or pets reenter treated areas. Under normal conditions, protection can last up to thirty days. If you get prolonged heavy rain or notice activity returning, reapply sooner. The label explicitly allows and expects more frequent applications during extended rainy periods.

Safety and environmental notes you should know

This product causes moderate eye irritation, so keep it off skin, eyes, and clothing. Do not apply directly to water or areas where surface water is present. Store in a cool, dry place, protect from freezing and excess heat, and never pour unused product down any drain.

Troubleshooting When In Use

You sprayed carefully but animals still sniff around. Wipe up attractants first, then re establish your perimeter at the correct rate. Add a second line of defense, for example a baffle at the feeder or a snug lid and strap on the bin.

Nozzle sputters or clogs. Shake well before and during use to keep the pepper actives mixed. If the trigger clogs, rinse the tip in warm water and try again. The model 5935 instruction sheet stresses shaking and proper nozzle setting.

You need deer or rabbit control. Switch to the Deer and Rabbit Repellent line, which has different use directions and a longer protection window.

Behavior changes everything. For skunks and raccoons, exclusion and cleanliness make the repellent work harder. Seal openings under decks and sheds with buried hardware cloth, and keep bins clean and secured. For squirrels, place feeders eight to ten feet from launch points and use a properly positioned baffle. Combine those tactics with the spray, and you cut repeat visits dramatically.

Frequently Asked Questions

Does Critter Ridder 32 oz RTU really last up to 30 days, and what about rain?

Yes, under normal conditions one application can remain effective for about 30 days. The EPA master label also says you may need to reapply sooner after heavy, prolonged rainfall, since weather speeds up scent loss outdoors.

Can I spray it on bird feeders, or will it bother birds?

You may spray the feeder itself to enhance repellency, after a quick spot test to check for staining. The label includes specific directions for spraying the feeder, pole, nearby branches, and trunk. This repellent targets mammals through smell and taste, while birds do not sense capsaicin in the same way, which is why pepper-based approaches are commonly used around feeders.

What animals is the 32 oz RTU actually labeled to repel?

Dogs, cats, groundhogs, squirrels, skunks, and raccoons. It repels by odor and taste. If your problem is deer or rabbits, use Safer Brand’s Deer and Rabbit Repellent line, which is a different, longer lasting formula.

Will it work on opossums?

Opossums are not listed on the RTU spray label. Some retailer Q and A pages note the product has not been tested for possums, and the manufacturer only claims the species listed above. For opossums, focus on removing attractants and closing access points, and consider products specifically labeled for them.

Is it safe around kids and pets?

Follow the label’s precautions. The product causes moderate eye irritation and you should avoid contact with skin, eyes, or clothing. Apply outdoors only, to dry surfaces, and under conditions that allow quick drying. As a practical rule, let treated areas dry before people or pets use them, so no one contacts wet spray.

Can I use it on edible plants or inside the house?

No. The label says outdoor use only and do not apply to food or feed crops. If you grow edibles, create a perimeter around the bed and keep spray off edible plant material.

Does it stain?

Yes, it can stain structural and painted surfaces, for example siding, decks, fences, driveways, sidewalks, and vehicles. Apply only to intended outdoor areas and avoid drift onto structures.

How much should I spray, and how far does a 32 oz bottle go?

Use about 0.10 ounce per square foot for lawn and garden perimeters and ornamental plants. Use 0.25 ounce per square foot on landscaped beds where animals dig. The label equates that to roughly three full trigger sprays per square foot at the lighter rate and about five trigger sprays at the heavier rate. At these rates, a 32 ounce bottle treats about 320 square feet or about 128 square feet respectively.

Any tips for trash night raids by raccoons or skunks?

Yes. The label includes a trash protocol. Spray the entire bag, including the bottom, then treat the can and the pad where it sits. For best protection, treat bags within seventy two hours of pickup. Combine this with tight fitting lids and clean bins for the best results.

My trigger sprayer is clogged. What do I do?

Safer Brand’s own product Q and A advises soaking the sprayer in warm water and rinsing well to clear clogs. Shake the bottle often during use so the pepper actives stay suspended.

Is the 5935 32 oz RTU still current?

Safer Brand’s Q and A page for model 5935 notes in 2025 that the item is an “obsolete” product on their site, although inventory may still exist at retailers. If you cannot find it locally, check the Deer and Rabbit RTU or the Critter Ridder granules as alternatives for similar use cases, depending on the animal you need to deter.

What should I do if animals keep coming back even after I spray?

Stack your defenses. The label allows reapplication, and for persistent visitors you will get better results if you combine this pepper-based animal repellent with simple habitat and access fixes. Around feeders, place baffles correctly and keep feeders eight to ten feet from launching points and roughly four to five feet off the ground. For digging under decks or sheds, bury hardware cloth or install an L footer to block burrowing. For trash, secure lids and remove food residues. These physical steps make the repellent work harder.

Conclusion

If you are tired of the nightly shuffle with raccoons, skunks, squirrels, neighborhood cats, or that one bold groundhog, this ready-to-use, pepper-based approach gives you a humane way to reset their habits. Safer Brand 5935 Critter Ridder animal repellent spray repels by smell and by taste, and a single application can protect treated areas for about thirty days in normal weather. Those claims come straight from the product instructions and EPA accepted label language.

Walk your property once, mark the true first contact spots, then treat exactly where paws land, for example perimeter bands, bed surfaces that show digging, bin lids and pads, and feeder poles. Follow the label rates, lighter applications for general perimeters and heavier applications where digging pressure is high, then reapply sooner after prolonged heavy rain. This puts the pepper signal where animals actually make decisions, which is why the training effect sticks.