Managing Household Ant Pests - IPM Experience House
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B-6183
12-05
Managing Household
Ant Pests
Bastiaan M. Drees*
I
n nature, ants are generally considered become queen ants in new colonies. They may
to be beneficial insects. But when they choose indoor nesting sites if suitable ones are
invade a home, ants can be a nuisance. not available outdoors. When she finds a nesting
To manage an ant infestation in the home, site, the queen loses her wings and begins to lay
you must first identify the species. The next step eggs, which hatch into legless, grub-like larvae.
is to learn about the biology of that species and The queen feeds the larvae as they develop
determine where the colony might be nesting. through several stages, molting and growing
Some species commonly nest indoors, while oth- between each stage. Larvae then form pupae and
ers nest outside and enter a home just to look for soon emerge as adult ants. Once worker ants
food. have developed, the queen no longer needs to
To rid your home of ants, you must eliminate care for the brood.
the colonies or nests. Some treatments, such When winged ants swarm in the home, it
as insecticides sprayed on ant trails, kill only a is likely that their colony is located somewhere
few foraging worker ants. They do not eliminate inside. Winged ants swarming outside, such as
colonies. In fact, such treatments can sometimes around porch lights, should not be a concern.
make the problem worse by causing a colony to To discourage them, turn off porch lights or use
split into two or more separate colonies. yellow “bug” lights. If you do see winged ants
This publication can help you identify and inside, it is important to distinguish them from
treat ants that invade your home. However, ant termites. The following chart will help. (Also see
control can be difficult. If you are not successful, Extension publications B-6080, “Subterranean
call a commercial pest control operator. Termites,” and L-1782, “Drywood Termites.”)
Why Ants Enter a House Winged ants Winged termites
• Two pairs of wings, • Two pairs of wings
To start a new colony with the hind wings of equal size and
Ants form new colonies in several ways. Some shorter shape
species produce winged ants that swarm from the • Antennae usually • Hair-like antennae
nest during certain times of the year, mate, and are “elbowed”
then form new colonies. Newly mated females • Narrow “waist” • No narrow “waist”
between abdomen
*Professor and Extension Entomologist, The Texas A&M and thorax
University System
Some ant colonies can have more than one crevices, and they especially like warm places
queen, and mating may occur within the nest close to sources of water. They are occasionally
without swarming. These ants form new colo- found outdoors. Their trails can reach 150 feet in
nies when one or more of the queen ants, along length.
with some workers and brood, leave the nest and Worker ants develop from eggs (5 to 6 days)
move to a new location. Ant colonies do not nest through several larval stages (22 to 24 days), a
in permanent locations. Often entire colonies will prepupal stage (2 to 3 days), and a pupal stage
move from one nesting site to another almost (9 to 12 days) to adults. The time from egg to
overnight. Ant colonies may move indoors if adult takes 38 to 45 days (4 days longer for
the weather is either abnormally hot and dry or sexual forms). Colonies consist of one to sev-
very wet. They may also move indoors if there is eral hundred queen ants, sterile female worker
insufficient food and water outside. ants, winged male and female reproductive ants
(sexuals), and immature ants. Pharaoh ants do
To find food and water not swarm. Colonies multiply by “budding,” a
Worker ants from outside or inside nests process whereby a large part of a colony migrates
may forage for food and water inside a home. with some immatures to a new nesting site.
Foraging workers of some species secrete chemi-
cal (pheromone) trails to lead other ants to food Red imported fire ant, Solenopsis invicta
and water. The ants take food back to the colony
and share it with the other ants, including the
queen(s) and brood. In some species, such as
the pharaoh ant, larvae are an essential part of
the food chain; they partially digest solid food
brought to them by worker ants and regurgitate
it for the rest of the colony to consume. Most
adult ants can not ingest solid food particles.
Common Indoor Ant Species
Pharaoh ant, Monomorium pharaonis Red imported fire ant
Fire ants infest the eastern two-thirds of
Texas (also see Extension publication B-6043,
“Managing Red Imported Fire Ants in Urban
Areas”). Worker ants are 1/16 to 3/16 inch long and
are usually reddish or dark brown. Queen ants
are larger (3/8 inch) and lose their wings after
mating. This exotic species from South America
prefers to nest outdoors in soil. The ants con-
Pharaoh ant struct hills or mounds in open areas and also nest
under rocks and landscape timbers, at the bases
Also called “sugar ants” or “piss ants,” these of tree trunks, in decaying wood and in clogged
ants are very small, about 1/12 to 1/16 inch long, rain gutters. Occasionally they are found indoors
and are light tan to reddish. This exotic (non- nesting in wall voids, decaying wood or utility
native) species is the ant most often seen indoors housings.
in Texas. Pharaoh ants do not sting and usually When a mound or nest is disturbed, the ster-
do not bite. They feed on sweets (jelly–particu- ile female worker ants respond quickly and will
larly mint apple jelly, sugar, honey, etc.), cakes, run up vertical surfaces to attack the intruder.
breads, and greasy or fatty foods (pies, butter, They bite and hold on to the victim with their
liver and bacon). They may nest in light sock- jaws while injecting venom with stingers at the
ets, potted plants, wall voids, attics, cracks and ends of their abdomens. Fire ant stings produce
a burning sensation and often cause whitish Occasionally carpenter ants, particularly C.
blisters. Most people can tolerate the stings, but rasilis, nest under stones or in other places, but
some people are very sensitive to fire ant venom they usually nest in dead wood, either outdoors
and must seek medical attention. in old stumps, dead parts of trees, firewood and
Foraging workers may enter a house in search fences, or indoors between wood shingles or in
of food, moisture or nesting sites, particularly siding, beams, joists, fascia boards, etc. Colonies
during hot, dry periods or during floods. Fire are often located in cracks between structural
ants are omnivorous, but eat mostly insects and timbers, but the ants can also tunnel into struc-
other invertebrates such as ticks, chiggers and tural wood to form nesting galleries (although
caterpillars. The often feed on the sugary “honey- this is rare with the species that occur in Texas).
dew” produced by aphids, mealybugs and some They may prefer moist or decaying wood, wood
other insects. with dry rot, or old termite galleries. Galleries
Eggs hatch in 8 to 10 days and larvae develop (nesting tunnels) usually follow the grain of the
through four stages (instars) before pupating. wood and go around the annual rings. Tunnel
Development from egg to adult requires 22 to 37 walls are clean and smooth. Galleries can weaken
days, depending on the temperature. Each colony structural timbers. Nests can be located by
contains one or more queen ants. Queen ants searching for piles of sawdust-like wood scrapings
can produce about 800 eggs per day. A “mature” and dead ant parts underneath exit holes. These
colony can contain more than 200,000 adult and piles accumulate as the nests are excavated.
immature ants. Fire ant reproductives swarm to The development from egg to worker ant
establish new colonies. takes about 2 months. A mature colony contains
winged males and females (reproductives about
Carpenter ants, Camponotus sp. 3
/4 inch long), sterile female workers of various
sizes, and a wingless queen about 9/16 inch long.
The winged reproductives swarm from May
through July. If they are found in a home, it is
likely that a colony is nesting indoors. (Also see
Extension publication L-1783, “Carpenter Ants.”)
Other species
The acrobat ant, Crematogaster sp., nests
Carpenter ants under stones, in stumps or in dead wood and
occasionally invades homes. Some species make
There are 14 species of carpenter ants in Tex- nests in trees. Foraging worker ants tend aphids
as. The largest is the black carpenter ant (Cam- and other sucking insects and feed on the hon-
ponotus pennsylvanicus), which is found primarily eydew the aphids produce. The acrobat ant has a
in wooded areas and rarely causes a problem heart-shaped abdomen that is often held up over
indoors. Common indoor species are Camponotus its body.
rasilis and C. sayi. The workers of these spe-
cies have dull red bodies with black abdomens.
Worker ants are 1/4 to 1/2 inch long. They can be
distinguished from most other large ant species
because the top of the thorax is evenly convex
and has no spines. Also, the attachment between
the thorax and abdomen has a single flattened
segment.
Although these ants can bite, they do not
sting. Foraging worker ants leave the nest and
seek foods such as insects, decaying fruit, and
honeydew. When foraging worker ants enter a Acrobat ants
home they can be a nuisance.
The Argentine ant, Linepithema humile, is an but have a pungent “rotten coconut” smell when
exotic species from South America. It is not as crushed. This species is easily identified because
common in areas infested by the red imported all the workers are the same size and they are
fire ant. Workers are light to dark brown and active during the day. They form large colonies,
can be found both indoors and outdoors. Their and their nests contain more than one queen ant.
foraging trails may be as long as 200 feet. Be- Workers of tramp
cause each colony may contain several queens, ants, Tetramorium spp.
the population of Argentine ants can be huge in (e.g., T. bicarinatum), also
some areas. resemble the fire ant,
Bigheaded ants, but if you look closely
Pheidole sp., prefer to you’ll see that the head
nest in soil outdoors. and thorax are rough-
The heads of larger ened and have parallel
(major) worker ants are grooves. The bodies of
relatively large compared fire ants are smooth.
to the size of their bod- Tramp ants prefer to
ies. Their antennae have nest in the soil around
12 segments and “clubs” building foundations Tramp ant
on the ends. They bite Bigheaded ant and will forage indoors
but do not sting. Like for food.
red imported fire ants, they feed on live and dead The ghost ant, Tapi-
insects, seeds and honeydew outdoors. Indoors, noma melanocephalum, is
they are attracted to greasy foods and sweets. also becoming a problem
Workers of the in Texas. Workers are
crazy ant, Paratrechina tiny (1/16 inch) with a
longicornis, are grayish dark head and thorax
black with long legs and a light abdomen.
and antennae. They Colonies nest primar-
run very fast. Although ily indoors. Foraging
they mainly nest out- workers are attracted to Ghost ant
doors, they will forage sweets.
in homes. They are
omnivorous, but are
difficult to attract to ant
baits.
Crazy ant
Help with Ant Identification
The little black ant, Monomorium minimum, is If you are unable to identify ants from the
a slow-moving, small and shiny black ant. Work- information in this publication, you can get
ers prey on insects and feed on honeydew. help from professionals. You will need to collect
Workers of the odorous house ant, Tapinoma a specimen of the ants that are infesting your
sessile, look somewhat like red imported fire ants home. Dip a cotton swab in rubbing alcohol and
use it to collect one or more of the ants. Place the
ants in an alcohol-filled vial. Your county Exten-
sion agent or a pest control company representa-
tive may be able to identify the ants.
Texas Cooperative Extension publication
B-6138, “The Common Ant Genera of Texas,”
is a useful reference. It is available from the TCE
Bookstore (http://TCEBookstore.org).
If you hire a pest control operator, that
person will be able to identify the ants that are
Little black ant Odorous house ant invading your home.
Table 1. Characteristics of some common house-infesting ants of Texas.
Species Preferred Foods Swarming Sting Bite Follow Length of
nest preferred season trails workers
locations indoors (inches)
Usually nest indoors
Pharaoh ants Near heat and Grease, meats, None No No Yes 1
/16
moisture sources sweets
Usually nest outdoors, but can be found in or on buildings
Acrobat ants Protected Slight preference Early summer No Yes Yes/No 1
/8 to 1/4
galleries in for sweets and to early fall
mortar and wood meats
Carpenter ants Usually in stumps All foods, May to late July No Yes No 1
/4 to 1/2
and fences sweets
(see text)
Odorous Under stones or Sweets, meats, Seldom No No Yes 1
/8
house ants boards, in walls, dairy products
under floors
Red imported Lawns, gardens, Meats, grease, All year Yes Yes Yes/No 1
/8 to 1/4
fire ants plant beds sweets
Thief ants Nests of other Grease in Late July to No No No 1
/16
ants, soil, cracks cheeses and September
in wall meats, sweets
Usually nest only in soil outdoors
Argentine ants Lawns, plant Sweets, animal Rare, April No No Yes 1
/8
beds, leaf litter, fat and May
trash piles
Crazy ants Trash piles, Sweets, meat Spring No No No 1
/16 to 1/8
tree soil
Little black ants Lawns, under Grease, sweets, May to No No Yes 1
/16
objects, rotten meats, fruits, September
wood vegetables
Tramp ants Cracks in or near Grease, meats, May to June No No Yes 1
/8
sidewalks and honey
pavement
How to Manage Ants Indoors If you see trails of foraging ants, follow the
trails and try to determine where the ants are
Ants enter a home in search of food, water or coming from. You can make food-lure bait sta-
a good nesting site. There are things you can do tions to trick the ants into revealing their nest
to eliminate these resources inside and outside locations. Fill small squares of aluminum foil or
your home to prevent ant problems. bottle caps with sugar water, peanut butter, mint
To remove food sources: apple jelly, bacon grease or some other sweet or
• Keep your home clean. Clean up spilled greasy food. Watch the ants as they locate the
foods and beverages and store foods in food and take it back to the nest. You may soon
tightly sealed containers. see a column of foraging workers develop.
• If insects are producing honeydew on Remember that foraging ants may return to
plants close to the house, control them. nests indoors or outdoors. You may see the work-
Ants are attracted to honeydew. ers entering and leaving the house using “high-
To remove water sources: ways” such as the edges of buildings, borders
• Repair dripping faucets and other plumb- around landscape beds, wires, fences, hoses and
ing leaks. plumbing systems. If possible, follow them to
• Replace wet or rotten wood. their outdoor nests. Unfortunately, you won’t be
• Move mulch and landscape rocks away able to see most indoor nests because they are
from the bottom of the foundation. in wall voids or underneath slabs. But knowing
Mulch and rocks keep the soil moist, the ants are nesting only indoors will keep you
which attracts ants. from making unnecessary and ineffective outdoor
To remove nesting sites and keep ants from treatments.
entering the house: These observations take time, but they are
• Caulk cracks and crevices. Replace worn worth the effort because you will know how to
weatherstripping around doors and win- treat the ants effectively. Indiscriminately spray-
dows. ing insecticide on foraging ants or around your
• Remove dense vegetation next to the home will do little good.
house.
• Remove ivy that grows on walls.
• Clean out rain gutters. Ants may nest in
Treat the nest
gutters clogged with decomposing leaves If you do discover a nest, make note of its
and other debris. location so you can treat it. Insecticides for con-
• Store firewood away from the house. trolling ants are available as liquid sprays, dusts,
• Trim tree limbs away from the roof and fogs, aerosols and baits. Many are labeled in a
house. Ants may use them as bridges to general way to control “ants.” Some are labeled
gain access. to control specific types of ants. When choosing
• Before you bring firewood or potted a product, be sure to select one that will control
plants into the house, be sure they are not the specific pest you have and that is labeled for
infested with ants. the location where it will be used—indoors or
outdoors.
In addition to treating outdoor nests, you
Assess the problem may also need to apply insecticide indoors to
When ants are observed indoors, take some kill foraging workers, especially in winter when
time to study their habits. Make observations outside treatments are less effective.
both during the day and after dark (some ants Indoor nests can be treated directly with an
are more active at night). Note what foods they insecticide or, if the nest is not accessible, by us-
are attracted to and where most of them are ap- ing baits. Sometimes it is necessary to drill holes
pearing. Note whether the ants have wings or are into wood and wall voids to reach an ant colony.
wingless. The most important thing is to try to If so, you’ll want to hire a professional pest con-
locate the nest, because treating the nest is the trol operator who has the skill and equipment
most effective way to eliminate the ants. to do this. Ant colonies are mobile and quickly
move to new locations when disturbed. Some
species have more than one nest within a struc- • Mix 1 part boric acid powder (available
ture, and some have satellite colonies apart from from most pharmacies) per 100 parts bait
the main nest (e.g., carpenter ants), so it may material — 1 teaspoon per 2 cups food
be important to have the assistance of a profes- material (1 cup = 48 teaspoons).
sional. The 1 percent bait is better than higher con-
The most effective insecticide formulations centrations because it is less repellent to ants and
for direct application to indoor nests are sprays kills them as efficiently. Place small quantities of
or dusts. Dusts are usually preferred because bait in bottle caps or on pieces of foil, or inject it
they do not stain and control ants longer than do into short (2-inch-long) sections of soda straws
sprays. Dusts should be applied sparingly in thin, using a squeeze bottle. Place 20 to 30 small bait
even layers in the ant nest area. stations where ants have been seen. Never place
Insecticide baits may be used alone or in any baits in areas accessible to small children or
combination with direct nest treatments. To be pets. If the proper food material is used and the
successful, the bait must contain a food sub- bait is kept fresh and moist, the ants should be
stance attractive to the target ant species so that controlled after 3 to 4 weeks of a careful, thor-
foraging worker ants will collect the material, ough baiting program.
return it to the colony, and feed it to the other To use baits successfully:
ants. Some ant species feed mostly on sugar • Do not spray long-acting contact insecti-
or sucrose, while others prefer oils or proteins. cides (often applied to control cockroaches
Some species, such as imported fire ants, feed on or sprayed on ant trails). Sprays prevent
many types of foods. foraging worker ants from reaching the
Granular baits can be applied to inaccessible bait.
indoor locations such as wall voids. Outdoors, • Follow directions carefully and use the
they can be broadcast or used for spot treat- correct number of bait stations or the right
ments. amount of bait material to treat the infes-
Indoor baits are also formulated as liquids, tation. Also use fresh product. Some bait
gels, pastes or solids. These are contained in formulations, particularly those contain-
bait stations or applied by some other method. ing vegetable oil (e.g., soybean oil, peanut
Effective indoor baits contain ingredients such oil), will lose attractiveness over time or if
as abemectin, fipronil, hydramethylnon, sulfon- stored improperly.
amide, sodium tetraborate (borax), orthoboric • Make bait more effective by removing
acid, pyriproxyfen or methoprene. These are other food sources such as spilled food
slow-acting pesticides. Baits should not be con- and grease.
fused with “bait traps,” which kill only foraging • Be patient. It may take 3 to 4 weeks or
workers and not ants in the nest. more to eliminate some colonies.
Boric acid products are commonly formu- Baits usually kill many, but not all, of the
lated in sugar water (25 percent sucrose) and ants in a colony, particularly when a colony is
placed in a dispenser. Concentrations of 0.5 to large and cannot be treated directly as well.
3.7 percent are most attractive to Argentine ants.
Higher concentrations are less attractive. Boric Use contact insecticides for barriers
acid is a slow-acting stomach poison. Be careful Some contact insecticides repel ants. Exam-
using it outdoors because it is toxic to plants. ples are pyrethroid insecticides (permethrin, bi-
For pharaoh ants, if the nest cannot be located, fenthrin, cyfluthrin, es-fenvalerate, cypermethrin,
use a bait (e.g., Drax® Ant Kill Gel containing 5 lambda-cyhalothrin). Although repellants should
percent orthoboric acid or Terro®-PCO or other not be used while baits are set out, they can be
products containing 5.4 percent sodium tetrabo- used after a baiting program to quickly eliminate
rate or borax). Or prepare a 1 percent boric acid any remaining ants. They can also be sprayed
bait using the following recipe: around cracks, openings for plumbing and other
• Choose the most attractive food material places ants might enter to create an indoor bar-
for the ant species (e.g., peanut butter, rier and keep ants from reinfesting a home.
mint apply jelly, corn syrup, etc.).
Nonrepellant contact insecticides (such as
those containing chlorfenapyr) can be used Choosing the Right Insecticide
indoors by professional pest control operators to Table 2 lists some of the many products
kill foraging ants when the nest is inaccessible. available for treating pest ants in and around the
Outdoors, contact insecticides can be used to home. Some older contact insecticide products
establish a barrier around the home. This is done have recently been removed from the market.
by spraying insecticide in a 1- to 4-foot-wide Products containing bendiocarb (Ficam® and
band on the soil around the entire perimeter of others), chlorpyrifos (Dursban® and others) and
the home and to the lower walls of the home, as diazinon are no longer being sold, although exist-
directed on the product label. This barrier will ing stocks can still be used.
greatly reduce or eliminate ant invasion if treat- Some of the products and formulations listed
ment is repeated periodically or whenever ants are available only to professional pest control
are active. Granular insecticides can be used to operators.
treat the soil instead of sprays. Water the treated For additional information, refer to the
area lightly after application to release the insec- following publications, available from the
ticide from the granules. Texas Cooperative Extension Bookstore at
Professional pest control operators can spray http://tcebookstore.org.
Termidor® (0.6 percent fipronil) 1 foot up and B-6043, “Managing Red Imported Fire Ants in
1 foot out from the base of foundations. This is Urban Areas”
a slow-acting, long-lasting contact insecticide.
L-5070, “The Two-Step Method Do-It-Yourself
It appears that foraging ants returning to their
Fire Ant Control”
nests carry the insecticide to other ants, which
eliminates the colony. This may be an especially L-5314, “Red Harvester Ants”
helpful product for controlling crazy ant nests
outdoors, because they are harder to control with
baits.
Acknowledgments
The entire home landscape should not be This is a revision of L-2061, authored by
routinely treated unless the landscape is infested B. M. Drees and B. Summerlin. The author is
with fire ants or other pest ants that continually grateful for the assistance of Anna Kjolen in
enter the home. Most ant species are beneficial developing Table 2, and for reviews of the earlier
in the landscape. version and this version provided by Jerry Cook
(Sam Houston State University), David Oi
(USDA-ARS, Gainesville, Florida), Dan Suiter
(University Georgia), L. Hooper-Bui (Louisiana
State University), and S. B. Vinson (Texas A&M
University).
Table 2. Examples of insecticide products for controlling ants in and around homes. Note that some products
contain several ingredients. Some products are available only to professional pest control operators. Carefully
follow directions on the product label. For a more detailed version of this table, visit http://www.insects.tamu.edu
Active ingredient Where and how used Product name examples
common name (check label for details) and signal word
abamectin B1 Indoors: Apply to cracks and Advance 375A Select Granular Ant Bait Advance
crevices where ants are active Granular Ant Bait Formula 1
Outdoors: Broadcast around Advance Granular Carpenter Ant Bait
perimeter of house; treat individual
colonies and mounds CAUTION
avermectin B1 Indoors and outdoors Raid Ant Baits II
Raid Outdoor Ant Spikes
CAUTION
acephate Outdoors: Treat mounds Orthene PCO Formula II
Indoors: Apply to cracks and Orthene Crack & Crevice Pressurized Residual
crevices; for carpenter ants, apply Formula 1
to tunnels and cavities Ortho Orthene Fire Ant Killer
CAUTION
arsenic trioxide 0.46% Outdoors or indoors Grant’s Kills Ants Stakes
Grant’s Kills Ants Bait Stations
CAUTION
bifenthrin Outdoors: Broadcast or treat mounds Ortho Fire Ant Killer Broadcast Granules
Indoors Talstar PL Granular Insecticide (FMC)
TalstarOne Multi-Insecticide
Bifenthrin Pro Multi-Insecticide Golf Courses/Nursery
Ortho Bug B Gone Max Insect Killer for Lawns
Basic Solutions by Ortho, Lawn & Garden Insect Killer
Ortho Home Defense Max
CAUTION
boric acid Indoors Perma-dust Pressurized Boric Acid Dust
AntX 75
CAUTION
chlorfenapyr 21.45% Indoors Phantom Termiticide - Insecticide
CAUTION
clove oil Outdoors: Broadcast or treat mounds Eco Exempt D with Hexa-Hydroxyl
Indoors: Apply to cracks and
crevices CAUTION
CAUTION–least toxic; WARNING–moderately toxic; DANGER–most toxic of formulated product
Common name Where and how used Product name and signal word
and formulation (check label for details)
cyfluthrin Outdoors: Spray around doors, PowerForce Multi-Insect Killer
windows, foundation and porches; Cy-Kick Crack and Crevice Pressurized Residual
spray ant trails, mounds and lawns; Cy-Kick CS Crack and Crevice Pressurized Residual
inject into nests Real Kill Home Insect Control Indoor Outdoor
Indoors: Apply to cracks, crevices Insect Killer
and wall voids PowerForce Multi-Insect Concentrate
PowerForce Multi-Insect Killer Ready-to-Spray
Tempo 1% Dust Insecticide
Prescription Treatment Brand Cy-Kick CS Controlled
Release Cyfluthrin
CAUTION
ß-cyfluthrin cyano Outdoors and indoors Tempo Ultra WP
Tempo SC Ultra Insecticide
CAUTION
cypermethrin Outdoors and indoors Demon TC
Hot Shot Home Insect Control Clear Formula2
CAUTION
deltamethrin Outdoors: Apply around windows, DeltaDust Insecticide
doors, porches, eaves, patios and DeltaGard G Insecticide Granule
in crawl spaces; treat mounds Ortho Fire Ant Killer
Indoors: Apply to ant trails and Suspend SC Insecticide
around doors and windows
CAUTION
disodium octaborate Outdoors and indoors Bora-Care Termiticide, Insecticide and Fungicide
tetrahydrate Concentrate
Tim-bor Insecticide and Fungicide
CAUTION
eugenol (clove oil) + Outdoors: Treat perimeters, Eco EXEMPT G Granular Insecticide
thyme oil landscapes and mounds
CAUTION
fenoxycarb Outdoors: Treat mounds Award Fire Ant Bait
CAUTION
fipronil Outdoors: Apply around doors, Ceasefire Fire Ant Bait Insecticide
windows, vents, pipes and other Combat Ant Killing Gel
openings Over ‘N Out
Indoors Topchoice Insecticide
Termidor SC Termiticide/Insecticide
CAUTION
Termidor 80 WG Termiticide/Insecticide
WARNING
10Common name Where and how used Product name and signal word
and formulation (check label for details)
hydramethylnon Outdoors: Broadcast, treat mounds, Amdro Fire Ant Bait Yard Treatment
or use in bait stations Amdro Pro Fire Ant Bait
Indoors: Apply bait only into cracks, Grant’s Kills Ants Total Ant Killer Bait
crevices and other inaccessible areas Amdro Ant Block
Eclipse Professional Insect Bait
Maxforce Fire Ant Killer Granular Bait
Maxforce Professional Insect Control Fine Granule
Insect Bait
Maxforce Professional Insect Control Granular
Insect Bait
CAUTION
hydramethylnon + Outdoors and indoors Extinguish Plus
s-methoprene
CAUTION
indoxacarb Outdoors and indoors Spectracide Fire Ant Killer Plus Preventer Bait
Once and Done
Advion Fire Ant Bait
Real-Kill Ant Bait
CAUTION
lambda-cyhalothrin Outdoors: Treat mounds; treat ant Spectracide Fire Ant Killer Granules2
nests; treat carpenter ants in trees, Prescription Treatment 221 L Residual Insecticide
stumps, poles and fences; apply Scimitar GC Insecticide
around buildings
Indoors: Treat cracks, crevices, wall CAUTION
voids, and ant tunnels in wood
linalool + N-octyl Indoors: Treat carpet and pet Demize Nylar Carpet Spray
bicycloheptene bedding
dicarboximide + CAUTION
nylar: 2-(1-methyl-2-
(4phenoxyphenoxy)
ethoxyl pryridine +
permethrin
methoprene Outdoors: Treat mounds, perimeters Extinguish Professional Fire Ant Bait
of buildings and other areas; Pharorid Ant Growth Regulator
broadcast
Indoors CAUTION
n-ethyl perfluoro- Indoors Advance Dual Choice Ant Bait Stations
octanesulfonamide
(sulfonamide) CAUTION
orthoboric acid Outdoors and indoors Snuffer Niban FG Granular Bait
InTice Granular Bait
Niban Granular Bait
Drax NutraBait Pressurized Baiting System
Hot Shot Max Attrax Roach Killing Powder
CAUTION
11Common name Where and how used Product name and signal word
and formulation (check label for details)
permethrin Outdoors and indoors Pounce
Astro Insecticide
Permethrin Pro Termite-Turf-Ornamental
MasterLine Permethrin Plus-C Termiticide/Insecticide
CAUTION
propoxur: Outdoors and indoors 2% Prentox Larva-Lur contains Propoxur
2-(1-methylethoxy)
phenol methycarbamate CAUTION
pyrethrins + other Outdoors ULD HydroPy-300 Pyrethrin Concentrate
ingredients Indoors: Apply to cracks and Microcare Pressurized Pyrethrum Capsule
crevices Suspension
565 Plus XLO Contact Insecticide
P.I. Contact Insecticide
ULD BP-50 Contact Insecticide
Pro-Control Plus Total Release Aerosol Insecticide
Pro-Control Total Release Aerosol Insecticde
Tri-Die Pressurized Silica + Pyrethrin Dust
Tri-die Silica & Pyrethrum Dust
Drione Insecticide
Prentox Pyronyl
ULD BP-100 Contact Insecticide
Microcare CS Controlled Release Pyrethrum Liquid
Concentrate
Prentox Pyronyl 303 Emulsifiable Concentrate
Prentox Pyronyl Oil Concentrate OR-3610A
ULD BP-300 Contact Insecticide
Prentox ExciteR
Kicker
CAUTION
pyriproxifen (pyridine) Outdoors and indoors Distance Fire Ant Bait (Insect Growth Regulator)
Archer Insect Growth Regulator
Nyguard IGR Concentrate
CAUTION
rosemary oil (10.0%) Outdoors and indoors EcoEXEMPT IC
CAUTION
sodium tetraborate Outdoors and indoors 381B Advance Liquid Ant Bait
decahydrate (Borax) Terro - PCO Liquid Ant Bait Stations
388B Advance Ant Gel Bait
CAUTION
spinosad Outdoors: Broadcast or treat New Ortho Fire Ant Killer Bait Granules
mounds Fire Ant Control with Conserve (Green Light)
CAUTION
tau-fluvalinate Outdoors Mavrik Perimeter
CAUTION
12Common name Where and how used Product name and signal word
and formulation (check label for details)
thiamethoxam 25.0% Outdoors Flagship 25WG
CAUTION
(S)-cyano (3-phen- Outdoors and indoors Conquer Residual Insecticide Concentrate
oxphenyl)methyl-(S)-4-
chloro-alpha- CAUTION
(1-methylethyl)
2-phenethyl propionate Indoors EcoPCO ACU Contact Insecticide
CAUTION
132.5M, Revision
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