Published by American Structural Pest Control West | Serving the South Bay, CA
Over the course of this blog series we’ve addressed a lot of pest control misconceptions one article at a time. This one pulls the greatest hits together in one place because some of these myths are so widely believed that they’re genuinely costing people time, money and a whole lot of frustration.
Some of these are things we hear regularly from customers. Some are ideas that spread on social media and take on a life of their own. All of them are worth setting straight.
Myth: A Clean Home Won’t Get Pests
This might be the most persistent myth in the entire industry and we dedicated a full article to it earlier in this series. The truth is that some of the cleanest homes in the South Bay deal with regular pest activity because cleanliness addresses what’s inside your home but does absolutely nothing about the environment outside it.
Argentine ant super-colonies span entire neighborhoods. Rodents are drawn by pheromone trails and the smell of bait, not by whether your kitchen floor is spotless. Neighbors with bird feeders, overgrown yards or free-fed outdoor pets create pest pressure that travels to every home nearby regardless of how meticulously maintained those homes are. In multi-unit buildings a spotless condo can have cockroach activity originating from a neighboring unit through shared wall voids.
Cleanliness matters and it does reduce certain attractants. But it is not a substitute for professional pest control and it is absolutely not a guarantee against pest activity in a climate like the South Bay’s.
Myth: Store-Bought Products Work Just as Well as Professional Treatment
We’ve addressed this one across several articles and the short version is: they don’t, and in some cases consumer products actively make professional treatment harder. Store-bought sprays are typically repellent products that kill on contact and scatter the visible activity without reaching the colony, the harborage or the life stages that sustain the population.
Worse, repellent products applied before a professional visit can scatter pests to areas they weren’t previously in, making the problem harder to assess and treat. A professional treatment uses the right product for the right pest, applied in the right location at the right concentration. That’s a fundamentally different thing from spraying along a baseboard and hoping for the best.
Myth: Ultrasonic Repellers Work on Pests
Plug-in ultrasonic devices that claim to repel rodents, insects or any other pest through high frequency sound are one of the most oversold products in this space and the evidence for their effectiveness is simply not there, for any pest.
Rodents habituate to the sound within days and resume normal activity regardless of whether the device is running. Insects, whose hearing and sensory systems work very differently from mammals, are essentially unaffected by ultrasonic frequencies in any meaningful way. Studies on these devices consistently find no reliable pest control benefit across species.
These devices don’t just fail to work. They give homeowners a false sense of security while the actual problem develops undisturbed. If you have an active pest situation, plugging in a sound machine is not the answer for rodents, ants, cockroaches, spiders or anything else.
Myth: Peppermint Oil Gets Rid of Ants
Peppermint oil has some minor short-term deterrent effect on individual ant scouts under specific conditions. It does not address Argentine ant super-colonies. It does not affect the colony structure in any meaningful way. And in the South Bay where Argentine ants form massive interconnected networks spanning entire city blocks, a few drops of peppermint oil on a cotton ball near a baseboard is not going to make a dent.
The active compounds dissipate quickly in open air, the coverage is limited to where you’ve applied it and the sheer scale of the ant pressure in this region simply outpaces what any essential oil can realistically address. It might redirect a single trail temporarily. It will not resolve an established ant situation.
Myth: One Treatment Solves the Problem Permanently
We covered this thoroughly in our articles on how long pest control lasts and the truth about pest control guarantees. Pest control products have a residual window, not an indefinite lifespan, and pest pressure in the surrounding environment exists regardless of how well a single treatment is applied.
There is also no such thing as pest elimination. Pests are a permanent feature of the environment we live in, especially in the South Bay’s mild year-round climate. The goal is always control, maintaining conditions that keep pest activity below the threshold of being a problem. That’s an ongoing process, not a one-time fix, which is exactly why recurring service plans exist.
Myth: Seeing One Cockroach Means There’s Only One
Cockroaches are nocturnal and spend the vast majority of their time hiding in harborage areas that are dark, warm and close to moisture and food. When one is visible during the day that’s a significant red flag, not a reassuring sign that only one is present. Daytime visibility usually means the population has grown large enough that competition for space and resources in the harborage is pushing individuals out.
Even a single cockroach spotted at night almost certainly means more are active in the spaces you can’t see. These are not solitary creatures. Where there is one there are almost always more and German cockroaches breed fast enough that a small population can become a significant one in a matter of weeks.
Myth: Bait Stations Are the Same as Traps
We wrote a full article on this one specifically because the confusion is so widespread and has real consequences. Bait stations are not traps. They do not capture or contain rodents. A rodent that enters a bait station enters freely, accesses the bait and leaves. The purpose is to draw rodents to a controlled location and manage activity in the surrounding environment, not to catch the animal.
Trapping is what you do when rodents are already inside a structure. Bait stations are an exterior population management tool used to reduce activity around the structure and deter rodents from getting close enough to find a way in. Confusing the two leads to mismatched expectations and the wrong service being applied to the wrong situation.
Myth: Cats Will Solve a Rodent Problem
Cats are natural hunters and some cats are very effective at catching mice and the occasional rat. But relying on your cat as your primary rodent control strategy has some significant limitations that are worth being honest about.
First, many domesticated cats simply don’t hunt with the consistency or effectiveness that would actually keep a rodent population in check. Domestication has reduced the prey drive in a lot of household cats and some of them, let’s be honest, are just not particularly motivated to hunt. A well-fed indoor cat napping in a sunny spot is not actively patrolling for rodents.
Second, even a genuinely effective hunting cat addresses individual animals rather than the entry points and conditions that are sustaining the population. A cat might catch a rat but it won’t seal the gap in the roofline that seven more rats are going to find. Cats can be a helpful supplemental deterrent but they are not a pest control program.
Myth: Cheese Is the Best Bait for Rodent Traps
This one comes straight from cartoons and it has almost no basis in reality. Rodents are actually more attracted to high-calorie carbohydrates and fats than they are to cheese. Peanut butter is widely considered one of the most effective baits for rodent traps because it’s sticky, aromatic and calorie-dense in a way that rodents find genuinely irresistible. Chocolate, nesting material and even small amounts of dry kibble can also be effective depending on the situation.
Cheese can work but it’s far from optimal and it dries out and loses its attractiveness faster than alternatives like peanut butter. If you’ve ever wondered why your rodent trap with a piece of cheddar on it sat empty for a week, now you know.
Myth: You Only Need Pest Control in Summer
This one might be true in parts of the country that experience hard winters where pest activity genuinely shuts down for months. It is not true in the South Bay.
Our mild coastal climate keeps ants, cockroaches, spiders, rodents and other pests active year-round. There is no season in the South Bay where pest pressure drops to zero and your home is naturally protected without any maintenance. Ant activity surges in summer and during rain events. Spider activity increases in fall and winter. Rodents are consistent regardless of season. Mosquito season is longer here than most people expect.
Year-round recurring service exists specifically because the South Bay’s climate never gives you the seasonal break that homeowners in colder climates rely on. If you wait until summer to start thinking about pest control you’ve already missed months of active pest pressure.
Myth: Bed Bugs Only Live in Dirty Homes
Bed bugs are not attracted to dirt or poor sanitation. They are attracted to warmth, carbon dioxide and the presence of a sleeping host. They travel on luggage, on secondhand furniture, on clothing and through shared walls in hotels, apartment buildings and any multi-unit environment. A five-star hotel can have a bed bug problem. A spotless home can have bed bugs brought in from a single trip or a secondhand purchase.
Cleanliness has essentially no bearing on bed bug vulnerability. What matters is exposure to environments or items where bed bugs may already be present. Inspecting secondhand furniture and luggage after travel are far more relevant protective measures than how often you vacuum.
Have a Pest Question That Doesn’t Quite Add Up?
We’re always happy to give you a straight answer. Give us a call or send us an email and we’ll tell you what’s actually going on and what, if anything, needs to be done about it.
American Structural Pest Control West
Phone: (310) 699-3110
Email: office@aspcwinc.com
Website: aspcw.com
Serving Torrance, Redondo Beach, Hermosa Beach, Manhattan Beach, El Segundo and throughout the South Bay.