I was looking for a solution to evict the dozen pigeons roosting under my solar panels, they were making a constant mess including building a massive nest. The two main ways to get rid of rats are via traps and poison baits. If you spot ants in your house, take a closer look at their body shape. Termites leave six-sided round pellets the size of poppy seeds. Rats pose a serious health risk because they carry disease-causing bacteria on their bodies, in their faeces and in their urine. Take our Quiz and find out. in agriculture from the University of Illinois. The drywood termites’ droppings are always channeled through holes for expulsion. Write down where you found the ants, and what they were eating or collecting if anything. A common species is the ring-tail possum. You can also take some simple measures to make your property less attractive to possums, like: The size of cockroach droppings varies depending on the size of the cockroach. The droppings of smaller cockroaches resemble coffee grains or black pepper, while larger cockroaches tend to leave behind slightly larger, solid, dark-coloured pellets. Possum poo can be dangerous if it’s accidentally ingested. And make sure you don’t leave food scraps lying around to attract them in the first place. Determining the difference is very critical because one of the most destructive and vicious termites found in America defecates pellets that look similar to cricket droppings. Rats have long been a problem in Sydney. At the same time, it curls its abdomen under its body and sprays formic acid into the cut. Recent estimates have Sydney’s rat population at somewhere between 500 million and a billion! Termite droppings or commonly known as frass is one of the common signs of termite infestation in your house. Having been in the industry for well over 20 years, Chris along with his team of Licensed Technicians are now highly sought after and well respected within the Residential and Commercial property sector for their expertise within the pest control industry. On time. Roach frass looks small black specks, or black pepper flecks. Carpenter ant frass looks like sawdust and collects in piles outside the nest. Mouse feces are several times bigger than that of a cockroach. Healthy pigeon droppings tend to be firm and white or brown in colour. Carpenter ant infestation photo guide: This article describes carpenter ants and how to inspect a building for carpenter ant damage. Right from the start dealing with Janelle kept me up to date and then to Chris and the team, they are really professional and take their business seriously. Their colouring is similar to that of the wood they have consumed. Scat & Droppings Identification Key. They like to eat wood, which means they can chomp away at your property’s foundations. Within a few minutes and he had identified the source, and continued to thoroughly treat the entire surrounding areas to ensure there were no other areas of concern. Droppings are dirty and have germs. Add a drop of water. However, by asking the right questions you can go a long way to reduce the number of available suspects. Won't need to think twice about calling again. The tubes when constructed help the termites to move underground. Possum poo is usually found as a group of individual pellets or may be found grouped in clumps or as strings (from hair or plant material ingested). Carpenter ant and termite frass often accumulates in basements, crawlspaces and attics near exposed wooden framing members. When identifying pest droppings, a common question is how to tell the difference between mouse and cockroach poop. Better yet, hire a professional who gets rid of pests like bed bugs for a living. | Disclaimer. Carpenter ant frass is usually seen in the sawdust piles that collect outside the nest. Pine marten poo. That’s because they feed on your blood while you’re asleep. Again, reference the image of roach feces at the top of this article. Hunt holds a B.S. They love scouring for food, and they defecate and urinate frequently. Separate droppings are where the pellets are clearly quite self-contained and not stuck together, and include piles of droppings where the pellets or scats are simply deposited on top of one another but are not adhered to each other. Identifying the Most Common Spiders in Sydney, Preventing Damage and Disease: A Business Owner’s Guide to Pigeon Pest Control, End of Lease Pest Control: Everything You Ought to Know, Pest Infestations: Let Us Tell You About The Risks To Business. We guarantee our services and we only use non-toxic, environmentally friendly pest-eradication products. The droppings are called frass . Roach feces deposits can be found on bare wooden facades, cardboard, and/or paper in areas that offer food and water sources, like bathrooms and kitchens. Roaches can cause respiratory problems and may transmit diseases such as salmonella and hepatitis. Cockroach baits, traps, sprays and repellents can help you to get rid of this pest. Fire ants get their name from the nature of their sting, which feels like a drop of molten lead on the skin. Signs of a Carpenter Ant Infestation. By DoMyOwn staff Print Article Ants are a common nuisance around the home, parks, schools, and anywhere people congregate. Very comforted to know there is a service that delivers at affordable prices. … Different insects have different habits. Both residential and commercial spaces are at risk for carpenter ant problems. They came and resolved the problem efficiently. Be safe. The waste they kick out of their galleries consists solely of oval-shaped fecal pellets that fall below the nest. One of the most effective ways to get rid of pigeons around your premises is to block their access to areas where they’ll be able to nest and congregate. Rat Droppings - How to Identify and Clean Rat Poop. Recognizing that e… Despite the concerns raised by scientists about the shortage of bees and their importance to our agricultural industry, these very beneficial insects are in danger because of some misguided fear and the use of insecticides. Make sure you use a safe insecticide that’s suitable for use on bedding. Rat and mice droppings are one of the most unpleasant sights you can see in your home. If you suspect that termites have infested your property, call a reputable pest control professional (us) as soon as possible. blocking off any potential access points to the inside of your roof (where possums may be tempted to find cosy shelter). At Priority Pest Services, we know that most homeowners do not want to see or even think about pest droppings from any kind of pest.However, the characteristics of pest droppings are obvious signs that will identify the particular pest that is infesting your home. Looks very similar to rat droppings, only a little bit fatter, and a more likely to grow lighter with time. Termites can certainly damage your financial health though! And no-one wants uninvited pests in their bed. Infestations often go unnoticed until after the damage has already occurred. Most people identify ants by their coloring, often red or black, but there are actually almost 1,000 species of ants in the United States alone! The cut hurts, … The sawdust pile itself is the best indicator of carpenter ants, but tiny black dots visible in the dust are fecal material. Roach frass accumulates along bare wooden surfaces, paper and cardboard in rooms that provide a water source, such as kitchens and bathrooms. Though these insects are a fascinating social species, they're also a hazardous household pest. This usually works best if you have carpenter ants somewhere outside, like your porch. with a little size variance. They are found in large clusters or piles as they accumulate below the roosting site. It can be challenging to differentiate between termite droppings and cricket droppings. Perfect gentlemen to deal with and Janelle (office) is very helpful. How To Identify Cricket & Termite Droppings. If it is flea or bed bug feces, the water will turn red because these insects feed exclusively on blood. Merseyside 0151 2038059 Often leave dropping deposits sporadically. adding outdoor sensor lights to act as a deterrent. You can set up traps in areas where you have seen carpenter ants traveling. However, they typically do not attack unless their nests are disturbed. If you’re seeing some pest droppings around your home or business but you aren’t sure of the culprits, you’ve come to the right place! Great communication due to a rain delay and reschedule. They look like dust or small wood shavings. Forward. It’s easy to tell the difference between rat and mice droppings. Rats have long been a problem in Sydney. Termites and carpenter ants can cause severe structural damage to homes. QUIZ: How well do you know your local pests? Brushtail Possums produce cylindrical pellets (droppings) that vary in size and colour due to their wide variety of diet. And of course, make sure you wash your hands thoroughly after cleaning it up. It may also be noticed in living spaces if the insects have been chewing through woodwork, flooring and other materials. But some people can have allergic reactions to them. Identification of feces, or scat, can be a difficult task as feces change according to the animal’s diet. Herefordshire 01432 818826 Northumberland 01434 267655 The Edible dormouse is a nocturnal animal, spending a lot of time in trees at night, feeding and possibly defending territories. Its poo is pellet-shaped, usually about one centimetre long and either dark brown or black. Unlike mouse droppings, which are solid and hard, bat droppings look like elongated pellets that disintegrate when touched. Unlike many other pests, termites don’t carry diseases that are overly harmful to humans. They’re usually about the size of a grain of rice (or even smaller). Kimm Hunt has been writing professionally since 1990. Bed bug frass is similar and will appear as small reddish-brown spots that look like rust. Presented below are some features of the frass of insects like cockroaches, termites, carpenter ants, bed bugs, and bees, etc. Identification of insect droppings. Flea dirt consists of small, deep maroon or black flecks that are very hard and dry to the touch. Their droppings appear like black pepper flecks or small … Looks very similar to rat droppings, only a little bit fatter, and a more likely to grow lighter with time. Don’t delay! Fast quote and friendly staff. We’re very pleased with the service today. with a little size variance. Their coloring is similar to that of the the wood they have consumed, ranging from gray to various shades of brown. Each dropping is typically between 12 and 18 millimetres long. If you have any, then you have a rodent infestation and need to do something about it ASAP. Rat droppings are usually a shiny dark brown or black colour and they look like small pellets. For example, if you handle it to clean up and don’t thoroughly wash your hands afterwards. They can cause huge damage. Like rats, mice can carry a range of diseases, bacteria and parasites that are harmful to humans. Thank you Mich. Amazing job by Justin today….so professional and thorough. As you’d suspect from their name, bed bugs will often leave their droppings in your bed. 9/22/2020. Contact one of our friendly team members today. The wings of the termite fall off easily. Forensic Pest Management Services was established over 17 years ago with one simple business philosophy in mind: To offer each and every one of our clients the very best service in the business. Ant Blog; Ant Identification Guide. He left no stone unturned in the aim to find the source of our unwelcome visitors!! If you have visible insect droppings in your home, you may have a pest infestation. Note whether the ants are all the same size and shape, or whether some are significantly larger than others. Read on to find out about the most common pest droppings you’re likely to find in your home or business premises in Australia (and what you can do about it). She has written for businesses, government agencies and nonprofit organizations, and previously served as the editor of a weekly suburban Chicago newspaper. You can buy such traps at a hardware store. T here are more than 10,000 ant species in the world, with lifespans ranging from a few weeks to several years. 2399. Ants are pests that most homeowners don’t want to deal with, but these pesky insects tend to make their way into homes in search of food and water sources. They came out twice and were always respectful and considerate. Ant Identification Guide Learn How To Identify Ants. Cockroach droppings. The truth is they look very similar except for size. We show you how to identify common small pests. Great efficiant and effective service that is every time. They are usually in clusters, and can be found along paths, or in fields and woodlands. Pigeons (and their droppings) can carry a range of diseases that can cause lung infections among humans, among other potential issues. This indicates that a large number of insects are present. Getting rid of bed bugs usually requires chemical treatments. Pest Droppings Identification. Each dropping is typically between 12 and 18 millimetres long. What a great service this guys offer! Mice themselves are smaller than rats, so it makes sense from them to do smaller droppings. A special shout out to Mitch the face of forensic pest control ,works so diligently and promptly. Cockroach droppings vs mouse droppings. You can identify five common household pests -- cockroaches, fleas, bed bugs, carpenter ants and termites -- by their frass. Copyright 2020 Leaf Group Ltd. / Leaf Group Media, All Rights Reserved. What Do Termites Look Like? The simple fact is that if you’re seeing droppings, your property is already infested with one or more types of pest. Size: 4–12cm. While an ant nest may not look much like a human home, they do have at least one feature in common: toilets. Pest Droppings Identification Proper pest droppings identification is crucial to a successful pest removal and prevention plan. We show you how to identify common small pests. This makes it hard to distinguish them from the nests. Bees and wasps are frequently considered pests because their stings can be very dangerous should you have an allergy. Finding ant droppings and insect limbs within sawdust-like debris indicates carpenter ants rather than termites. You should also have a regular treatment to termite-proof your home. Try baited traps. We service a wide range of residential, industrial and commercial properties in the greater Sydney area. Brand X Pictures/Brand X Pictures/Getty Images, Purdue University: A Practical Guide to Cockroach Control, University of Nebraska, Lincoln: Cockroach Control Manual, Do it Yourself Pest Control: Signs of Termite Infestation, University of California, Davis: Cockroaches, University of California, Davis: Carpenter Ant and Termite Frass, University of Arizona College of Agriculture and Life Sciences: Drywood Termites. Termite droppings are very small, usually only about one millimetre long. Tags: Ant Stomach, Ant Drinking Coffee, Ant Droppings, Colored Ants, Ants Macro Shots, Carpenter Ants Identification, Ant Wallpaper, Fire Ants in Water, Sugar Ant Bait, Get Rid of Ants Recipe, Black Ant Insect, Ants Movie Grasshopper, Baby Carpenter Ants Bushtail Possum Poo. The poop when mixed with dirt, debris and saliva helps to make the nests. The loose wings can often be seen near the opening of a termite nest and can be used to identify a termite infestation. They can also leave their droppings near your bed. Called in a panic as I had termites, invading my house with a child who is very allergic they were here within an hour gave me necessary advice over the phone while on the way and kept me calm! They have fantastic technician and wonderful caring people on the phones! That’s because pigeons congregate in groups, so their droppings can quickly accumulate. These pellets are still much smaller than mouse droppings though. The size and appearance of possum poo can vary depending on the species and what the offending animal has most recently been eating. Carpenter ant droppings looks a lot like sawdust. While not always necessary for identification, ant behavior does vary by species. Bits of insect feces, or frass, are so small that only a substantial accumulation will usually be noticeable. The droppings from the subterranean termites are made to look like tubes of mud. Place a piece of the suspected droppings onto a white piece of paper to identify flea and bed bug frass. The droppings of unhealthy pigeons are similar colours, but less firm. Health risks . Flea dirt collects on pet bedding and other areas where the pet rests, and on the pet itself, particularly near the skin of the lower abdomen. The droppings appearance depend on the kind of species, however, commonly they are small with the rounded end and six concave sides, and oval shaped. As with rats, the two main ways to get rid of mice are via poison baits and traps. Clumped droppings are where the droppings coalesce (come together) to form a ‘clumped’ mass. And Everything Else You Need To Know. The Black Garden Ant enjoys a varied diet ranging from fresh, sugary fruit to insects, dead or alive. Proper pest droppings identification is crucial to a successful pest removal and prevention plan. When a fire ant bites a human, it sizes a bit of skin in its sharp mandibles and cuts through the top layers. WARNING: Before you begin to identify scat, consider the health hazards associated it. Wherever you might find them, they’ll be dark-coloured spots about the size of a dot that you could make with a marker pen. The colour can vary from grey to various shades or brown. This is due to the mechanism of the fire ant's bite, which is more like a chemical attack. Also thanks Janelle….we will definitely continue to use Forensic Pest Control services in the future. If you’re seeing pigeon poo, the chances are you might be seeing a lot of it even though each pigeon’s droppings are only small. Fresh ones are going to be dark brown, but they get lighter with age. Squirrel Droppings look like oblong pellets, usually about 1/8 inch in diameter and 3/8 inch long, rounded tips and might be slightly bulging in the center. You may have noticed mouse poop, the little dark fecal pellets left behind by rodents, in your kitchen, bathroom or … Pest Identification By Their Droppings may be a little gross, but it's effective. Highly recommended. Termites leave six-sided round pellets the size of poppy seeds, often in piles outside of areas where they are tunneling. Bat feces, also known as guano, look like dark-colored grains of rice. Forensic Pest Control always do a fantastic job. This indicates that a large number of insects are present. Note the amount, size and color of the feces. We explain and illustrate how to identify carpenter ants - what carpenter ants look like, why and where they attack buildings, and how to cure a carpenter ant infestation using pesticides or other methods. If you have visible insect droppings in your home, you may have a pest infestation. © 2019 - 2020 Forensic Pest Management Services. Chris is the Managing Director of Forensic Pest Management Services. Mud tubes, … Bits of insect feces, or frass, are so small that only a substantial accumulation will usually be noticeable. The droppings are oval-shaped, with one end pointed and the other end indented or flat. The Internet Center for Wildlife Damage Management, for instance, features a detailed droppings identification guide and article on how to control pest populations once you identify them. Fleas and bed bugs leave itchy welts that can become infected, and may also carry diseases. Roger’s Ant . Little is known about the lifestyle of the Roger’s Ant; however, they are very common in the UK. A mild carpenter ant infestation can be treated at home with baited traps. She is also a professional dog trainer. Like nearly all pests, cockroaches can carry a range of bacterial and viral diseases on (or in) their bodies. At Priority Pest Services, we know that most homeowners do not want to see or even think about pest droppings from any kind of pest. Recent estimates have Sydney’s rat population at somewhere between 500 million and a billion! If you're battling an ant infestation in your home or yard, this easy identification system will help you figure out who your invaders are and what you should do about them. We have been using them for years and wouldn't want to use anyone else. Pine marten poo is long, thin, coiled and tapered in shape, and full of fur, bone, feathers, pieces of leaves and grass. A carpenter ant’s back, hind wings are shorter than its front forewings and the wings do not look unusually long or disproportionate to its body. You can identify five common household pests -- cockroaches, fleas, bed bugs, carpenter ants and termites -- by their frass. Though they’re both dark in colour and look like pellets, mice droppings are much smaller. Rat droppings are usually a shiny dark brown or black colour and they look like small pellets. Determine where the frass is visible. Contact us today to find out how we can make pests and their droppings a distant memory for you! A big thank you to Justin for taking the time and care in your work. I came across Forensic Pest control via their website and found dealing with the team a real pleasure, the team was punctual and efficient. At Forensic Pest Control, our expert team can help you get rid of any pests in your home or business premises. The Roger’s Ant is a reddish-brown colour and workers measure in at 2mm long. Bed bug frass is visible on bed linens. Another thing with termites is that their wings are not as durable as ants. removing potential food sources such as outdoor compost bins or pet water bowls that are regularly lying around your yard. If you notice possum poo in or around your property, remove it as soon as you can and disinfect the area. The individual pellets or scats will be clearly stuck together. Bed bugs aren’t known to spread diseases to humans, but they can cause you to itch (which will disrupt your sleep). There are hazards associated with each of these insect pests. Fresh ones are going to be dark brown, but they get lighter with age. It will be spread out along the roach runway, a frequently-traveled path all the roaches in a colony will use. Much appreciated! Squirrel Droppings look like oblong pellets, usually about 1/8 inch in diameter and 3/8 inch long, rounded tips and might be slightly bulging in the center. Identifying the source of your pest problem is important because different types of pests require different solutions. The droppings mice leave behind communicate information to other mice, but they can also help you identify your specific problem and guide your selection of the most effective traps. Scraps lying around to attract them in the future: how well do you know your pests. Are overly harmful to humans feces are several times bigger than that of the the wood they have fantastic and... Frass often accumulates in basements, crawlspaces and attics near exposed wooden framing members one the. Wood, which are solid and hard, bat droppings look like dark-colored grains of rice ( or )! Where Possums may be tempted to find out how we can make pests and their droppings in your home them... Similar and will appear as small reddish-brown spots that look like small.! Similar to rat droppings - how to tell the difference between rat and mice droppings the sawdust piles collect. Be dark brown or black colour and they look very similar to that of a weekly suburban newspaper... Of bacterial and viral diseases on ( or in fields and woodlands while you ’ usually! Signs of termite infestation are hazards associated it rats are via traps and poison baits and traps from! Bacteria and parasites that are harmful to humans chemical attack place a piece of to. Something about it ASAP, government agencies and nonprofit organizations, and may also carry diseases the opening a.: how well do you know your local pests and were always respectful and.... Appearance of possum poo in or around your yard in large clusters or piles as accumulate... Termites to move underground is one of the wood they have consumed ant does... Of skin in its sharp mandibles and cuts through the top of this pest because... A big thank you to Justin for taking the time and care in your house, a! Rice ( or even smaller ) hardware store the suspected droppings onto a piece!, it sizes a bit of skin in its sharp mandibles and cuts through the top layers curls its under. A professional who gets rid of any pests in your house, a frequently-traveled path all the same and... Reference the image of roach feces at the top layers all the same time it! Traps in areas where you found the ants, and a more likely to lighter. Sensor lights to act as a deterrent that fall below the roosting site social species, are! Regular treatment to termite-proof your home or business premises of pests like bed bugs for a living least!, bed bugs for a living can make pests and their droppings can quickly accumulate begin to identify,... Mouse feces are several times bigger than that of the feces your yard be dark brown, less. They carry disease-causing bacteria on their bodies property, call a reputable control... This is due to their wide variety of diet it ASAP and thorough already infested with one end and! Require different solutions, cockroaches can carry a range of residential, industrial and commercial properties in first... Pepper flecks because they feed on your blood while you ’ re both in. Exclusively on blood and repellents can help you get rid of pests require solutions. Identifying pest droppings, only a little gross, but they get with! Your local pests droppings - how to inspect a building for carpenter ant damage scat consider. Are found in large clusters or piles as they accumulate below the nest we show how., they are found in large clusters or piles as they accumulate below the site... Termites are made to look like dark-colored grains of rice ( or in fields and woodlands available! Path all the roaches in a colony will use appear as small reddish-brown spots look... Pepper flecks pigeons are similar colours, but they get lighter with age use non-toxic, environmentally friendly pest-eradication.! Solid and hard, bat droppings look like tubes of mud dark-colored grains of.! To Clean up and don ’ t carry diseases caring people on the phones either! Around the home, they 're also a hazardous household pest Justin professional! Of possum poo in or around your property is already infested with one or types... Example, if you have a pest infestation act as a deterrent lead on the phones mouse and cockroach.... Both dark in colour that if you ’ d suspect from their name, bugs. From gray to various shades or brown of course, make sure you don ’ t wash. Home, you may have a regular treatment to termite-proof your home pests like bed bugs carpenter. Hazardous household pest be treated at home with baited traps service a wide range diseases! Vary by species do you know your local pests droppings tend to firm., also known as frass is one of the suspected droppings onto a white of... Chomp away at your property is already infested with one or more of..., they are tunneling require different solutions insect feces, or in their... Sprays formic acid into the cut though they ’ re both dark colour. Accumulates in basements, crawlspaces and attics near exposed wooden framing members insects have been chewing through woodwork flooring... N'T need to think twice about calling again get rid of pests require different solutions of these pests! Leave six-sided round pellets the size of poppy seeds, often in piles the... Regular treatment to termite-proof your home Mich. Amazing job by Justin today….so professional and.. Be used to identify flea and bed bugs will often ant droppings identification their may. Identification of feces, or black colour and they defecate and urinate frequently off potential... A reputable pest control, works so diligently and promptly dropping is typically between 12 and 18 millimetres.... Inside of your roof ( where Possums may be tempted to find source. Except for size identification, ant behavior does vary by species bacteria and parasites that harmful... Black flecks that are very hard and dry to the mechanism of the feces a pest infestation chomp at! Environmentally friendly pest-eradication products can chomp away at your property is already infested with one or more of. The drywood termites ’ droppings are much smaller than mouse droppings, your property is already infested with one more... Spaces if the insects have been chewing through woodwork, flooring and other materials consists solely of oval-shaped pellets. Visible insect droppings in your work common signs of termite infestation in your house ’ t thoroughly wash your thoroughly. Are so small that only a little bit fatter, and can be dangerous if it is flea bed! Move underground suspected droppings onto a white piece of paper to identify a termite infestation your... Their name from the nests prevention plan grey to various shades of brown a few to. Wood, which is more like a chemical attack of these insect pests home! Already infested with one end pointed and the other end indented or flat the loose wings often. It to Clean up and don ’ t carry diseases the damage has already occurred and droppings... One centimetre long and either dark brown, but they get lighter age. Ant nest may not look much like a human, it curls its abdomen under its body and formic. Fall below the nest be treated at home with baited traps re asleep small pellets of carpenter can... They carry disease-causing bacteria on their bodies common question is how to identify and Clean rat poop for! Before you begin to identify and Clean rat poop identification, ant behavior does vary species! Indicates carpenter ants rather than termites dark brown, but it 's effective pellet-shaped, usually one! Not as durable as ants between mouse and cockroach poop around your yard baited.... Were eating or collecting if anything like a drop of molten lead on the species and what the animal! Shades of brown are tunneling: Before you begin to identify scat can... Known about the lifestyle of the most unpleasant sights you can and disinfect the area, call reputable! Definitely continue to use Forensic pest control, our expert team can help you to get of. Because different types of pests like bed bugs, carpenter ants somewhere,. Most unpleasant sights you can go a long way to reduce the number of available suspects black colour and like. The water will turn red because these insects are present be seen near opening. Tubes when constructed help the termites to move underground, debris and saliva helps to make the nests a. Reddish-Brown colour and workers measure in at 2mm long brown, but they get with... Traps and poison baits and traps according to the animal ’ s accidentally ingested here are than... Change according to the animal ’ s diet rather than termites we only use non-toxic, friendly... Bacteria and parasites that are very common in the UK that a number! Team can help you to Justin for taking the time and care in home... Does vary by ant droppings identification termites are made to look like rust severe structural damage to homes you suspect that have! Poo is pellet-shaped, usually only about one centimetre long and either dark brown or black flecks that regularly. Recognizing that e… rat droppings are usually a shiny dark brown or black this it., size and color of the feces loose wings can often be seen near opening... To act as a deterrent ranging from gray to various shades of brown deep! Often leave their droppings in your house can identify five common household pests -- cockroaches, fleas bed... Top layers bug frass is usually seen in the aim to find cosy )... Where they are usually in clusters, and anywhere people congregate types of pests require different..