| Seasonal Pest Information |
| Spring / Summer |
- Summer is also a very active time of year for insects.
Depending on the humidity and temperature, termites
continue to swarm well into the summer months. Ants will
also continue to swarm well into July.
- Cockroaches are seen more frequently indoors during
summer because they are searching out more favorable
conditions such as moisture and lower temperatures.
- Isopods (pillbugs) continue to be active in the soil
around homes as well as millipedes, centipedes, and
springtails.
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Fall / Winter |
- Most insects are not active in the fall and winter,
however many pests can still be active in and around your
home.
- Rodents are especially problematic due to colder
temperatures outside and warm, cozy homes inside.
- The true southern yellow jacket (paper wasp) is very
common in the fall and winter months.
- Cockroaches are always a challenge because of our
climate-controlled homes as well as structure-infesting
ants.
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All Year |
- Due to Mississippi's mild climate, insects are active
virtually year round.
- The ever-present mosquito is found nearly year round
in Mississippi. Different species are found during
different times of the year, but they all inhabit water as
larvae.
- Cockroaches, silverfish, and spiders are commonly
found in homes all year.
- Ants such as pharaoh ants, little black ants, and
other ants can be seen year round in homes.
- Flies, gnats, and other flying insects are also common
in homes all year.
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| Pest Information |
| Cockroaches |
- Cockroaches have been on earth for a very long
time - somewhere around 350 million years! There are a
variety of species, they're very adaptable and
reproduce very fast.
- Most species prefer to live in moist, dark places.
- Cockroaches are omnivorous, which means that they
tend to eat whatever they can find. This is one reason
why they have become so successful.
- Cockroaches produce egg cases, or oothecae, for
their young to mature in. Once the eggs inside the egg
case hatch, the young cockroaches (nymphs) will break
open the egg case and emerge.
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Some of their species include: |
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| A. German Cockroaches |
- Most commonly found in homes and
commercial establishments. They are
usually detected in kitchens, bathrooms or
areas with daily access to water.
- Small in size, tan in color and have
two longitudinal black stripes on their
pronotum - the shield-like plate that
covers the head (if you are looking down
on the cockroach
- They enjoy humid environments with a
temperature around 70°F.
- They are able to produce offspring
year round indoors. These females actually
carry the egg case (ootheca) with them
until a few hours before the nymphal
cockroaches are ready to emerge. Each
German cockroach ootheca holds between
25-40 cockroaches.
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| B. Brown-banded Cockroaches |
- Brown-banded cockroaches are usually found
in homes and commercial establishment such as
office buildings. They like high locations
(shelves, behind pictures, etc.)
- Tan in color. They have a yellowish stripe
on their pronotum - the shield-like plate that
covers the head (if you are looking down on
the cockroach
- Brown-bandeds will fly when they are
disturbed.
- These cockroaches like environments with a
temperature around 80°F.
- They are able to produce offspring year
round indoors. The females attach their egg
cases (ootheca) on walls or ceilings.
Brown-banded cockroach ootheca hold between
12-20 cockroaches.
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| C. American Cockroaches |
- Often called "Palmetto Bugs", these are
large cockroaches with a reddish-brown
coloring.
- They have yellowish-tan markings on their
pronotum - the shield-like plate that covers
the head (if you are looking down on the
cockroach).
- The nymphs, or baby cockroaches, are also
a reddish-brown color. Oothecae (egg case) are
often glued to a surface and hold 6-14 nymphs.
- Tend to move into the home when the
conditions outside become unfavorable (extreme
temperatures, excessive rain, etc.)
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| D. Smoky Brown
Cockroaches |
- Smoky brown cockroaches are a dark
reddish-brown or mahogany color.
- They do not have any yellowish or tan
markings on the pronotum.
- The nymphs are black with white markings
in early stages and then become reddish-brown
as they mature.
- These cockroaches can be located in
treeholes, building gutters, soffits in houses
or mulch beds. Smoky browns are generally an
outside inhabiting species, but indoors are
frequently found in attics.
- Female Smoky browns drop their ootheca
(egg case) and cover it with fecal material or
debris to camouflage. The egg case holds
around 18 nymphs.
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Termites |
- Pale-colored, soft-bodied social insects with
equal-sized wings. They live primarily in underground
colonies.
- Termite colonies consist of:
Primary reproductives } Function of reproducing and laying
eggs
Secondary reproductives
Soldiers - defend the colony / nest from invaders
Workers - forage for food and feed their nutrients to the
rest of the colony
Colony sizes are variable and can easily reach over one
million termites.
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- Termites are constantly foraging for food.
Workers will leave a pheromone trail while
they are foraging. This trail allows other
termites to also locate the food source.
- Termites eat material that contain
cellulose, such as wood, roots, plant debris,
paper or cardboard. Termites have protozoa in
their hindgut; it helps them to break down the
cellulose into usable nutrients. If these
protozoa are removed from the digestive tract,
the termite will eventually die of starvation
because it can no longer break down the
cellulose. The nutrients are passed throughout
the colony by trophallaxis - an exchange of
secretions or partially digested food between
termite workers and other colony members.
- Termites can gain entrance into a
structure through any part of the wood frame
in contact with the ground, through openings
in the foundation around pipes and conduits or
through cracks in the foundation. Termites can
enter through cracks that are no wider than
1/64 of an inch.
- Subterranean termites require moisture to
survive. They will create mud tubes to obtain
access to a structure that is above ground.
These tubes are created from soil cemented
with secretions and fecal material. The tubes
are to protect the termites from exposure to
sunlight or dry conditions. Termites are able
to survive in a structure without contact to
the ground if there is a sufficient moisture
source.
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| Ants |
- Ants are social insects. They live in colonies and
have a caste system consisting of a) Queen - lays the eggs
b) Workers - tend the young, build and repair the nest,
forage for food and defend the colony from invaders c)
immatures d) males - these are "produced" at times for
mating with reproductive females
- Ants are related to wasps and bees. They have a
pinched waist and elbowed antennae. They also may have a
modified ovipositor, or stinger. The stinger is attached
to a poison gland and can allow the ant to inject venom.
Ants will use the stinger in defense of the colony.
- Ants are primarily beneficial insects - they help to
recycle decaying organic matter. Ants also feed on pest
insects.
Some of their species include:
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| A. Fire Ants |
- Red imported fire ants are a reddish to
blackish color. They have two nodes and have
10-segmented antennae with the last two
segments forming a club.
- Fire ants are very aggressive; they are
very protective against any perceived threat
to their colony and will outcompete any other
ant specie for food.
- Fire ants have multiple queen colonies,
which causes mounds to be more numerous and
closer together.
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| B. Odorous House Ants |
- Odorous house ants are brown or black in
color.
- They have 12-segmented antennae and one
node that is almost hidden by part of the
abdomen.
- Colonies have multiple queens and can be
located underground of above ground. Outside,
these ants will nest in soil often below
stones or boards, or in piles of debris or
firewood.
- Odorous house ants usually move inside
after it rains since the rain limits their
food supply outside.
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| C. Pharaoh Ants |
- Pharaoh ants are small ants with a
yellowish-red color.
- The queen is larger and reddish-brown
color.
- This species of ant will place its nest
just about anywhere. They will nest in any
crack that is suitable to their needs. They
prefer to be near a water source. They have
also been found behind baseboards, under
carpet, in planters and in electrical outlets.
Nests may also be located outside in piles of
debris, under shingles of roofs or in house
gutters.
- Pharaoh ants forage most actively at
night. They will lay down a pheromone trail
from their nest to a food source so that other
ants from the same colony can also exploit the
food source. These ants will travel along
pipes and wiring that are located in walls to
obtain access to different rooms.
- Pharaoh ant colonies have multiple queens
and new colonies are formed by budding.
Budding is when groups of workers take eggs,
larvae and pupae to a new location.
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| D. Crazy Ants |
- Crazy ants are small, blackish ants. They
have very long legs and antennae. These ants
are often seen running about in an erratic
manner, giving them the name "crazy ant".
- Colonies of crazy ants can be small or
large and contain multiple queens.
- Crazy ants will produce new colonies by
budding or mating swarms.
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| E. Carpenter Ants |
- Carpenter ants are fairly large ants
ranging from ¼ to ¾ of an inch in length.
- They can be colored black, red or a
mixture of the two.
- This ant specie nests primarily under
rocks, in tree holes or in insect-damaged
wood. Carpenter ants create smooth galleries
in wood that has been damaged by fungi or
insects.
- A carpenter ant colony may have several
satellite nests consisting of workers, mature
larvae, pupae and winged alates. New colonies
are formed by nuptial flights.
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Bees & Wasps |
- Bees and wasps are actually beneficial social insects
Bees have fuzzy / hairy bodies; wasps don't.
- Bees feed on pollen and nectar from flowers. Wasps
usually feed on other insects or spiders.
- Bees can only sting one time because they have a
barbed stinger, which pulls out the stinger, poison gland
and guts. Wasps are able to sting repeatedly since they do
not have a barbed stinger.
Some of their species include:
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| A. Paper Wasps |
- Paper wasps receive their name from the
paper-like nest they build. These nests can be
found under the eaves of houses, under
branches of trees and shrubs, under decks or
inside pipes.
- Paper wasps do not have a caste system
with a sterile worker class. There is one
dominant female, which lays eggs, and the
others tend to the young. The dominant female
is usually the nest initiator.
- This species of wasps is variable in
color. They can be brown, black, orange or
yellow. In addition, their bodies may or may
not have stripes.
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| B. Yellow jackets |
- Yellow jackets can nest in wall voids,
attics, in trees and shrubs, or in the ground.
- They are social insects. They have a
worker caste that cares for the young and
forages for food.
- Adult yellowjackets will feed on fruit and
nectar from plants while the larvae are fed
insects or carrion.
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| C. Honey Bees |
- Honey bees are very important in
pollination of crops.
- Honey bees are social insects that live in
colonies. There is a queen that is responsible
for producing eggs. The worker caste is made
up of sterile females who build and repair the
nest, forage for food and tend to the young.
Males are called drones and are produced for
mating with reproductive females.
- Honey bees are small and fuzzy. They are
usually yellow and black striped.
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| D. Carpenter Bees |
- These bees are large and often confused
with bumble bees. Bumble bees are fuzzy with
yellow and black coloration.
- Carpenter bees have a fuzzy head and
thorax that are colored yellow and black
- These bees are solitary and create their
nest in wood.
- They create the galleries by chewing
through the wood with their mandibles. The
carpenter bee will place "bee bread", a mix of
pollen and nectar, in the gallery and then lay
an egg. Once the egg hatches, the larvae will
feed on the bee bread.
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| Silverfish |
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- Silverfish are considered a nuisance pest.
They prefer to live in moist, dark areas.
- Silverfish are gray or silver in color
with three tail-like appendages projecting
from the tip of their abdomen. Silverfish also
have long antennae and flattened bodies. Both
the adults and nymphs lack wings.
- Silver fish will travel long distances to
locate a food source. Once a good source of
food is located, they will stay in that same
area.
- Silverfish damage is recognizable by
irregular feeding marks and sometimes the
presence of scales, fecal material or
yellowish stains.
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For more extensive
information on pest biology check out
Pestweb |
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| Spiders |
- Spiders are arachnids and have two body segments,
eight legs, no antennae and a pair of chelicerae, or
fangs.
- Spiders are actually beneficial since they eat insects
and other arthropods
- All spiders have poison glands, but not all of their
poisons react with our body chemistry in such a way that
is detrimental to our health. A non-poisonous spider may
bite people and reddening and swelling may occur.
- Poisonous spiders that are located in this area are
the black widow and brown recluse.
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| A. Black Widow Spider |
- These spiders are black with red of orange
markings on the underside of the abdomen. The
marking is often in the shape of an hourglass.
- Females are about ½ an inch in length
while males are about ¼ an inch in length.
- Most of the time, the female black widow
will consume the male after mating.
- The female will create an egg sac that
contains around 300-400 eggs. She will be more
likely to bite if she has just created the egg
sac since this uses a lot of her energy and
she will be hungry.
- Black widows' a venom is a neurotoxin -
the venom will go into your nervous system.
Usually, there is no reaction at the site of
the bite. Fatalities from a black widow bite
are rare, but small children and the elderly
are at highest risk. When first bitten, the
bite may not be noticed or feel as if you're
being poked with a pin. This may be followed
by a dull pain and cramps, often in the
abdomen. As symptoms progress, one may
experience sweating, weakness, nausea,
vomiting and tremors. A victim may also
undergo difficulty in breathing.
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| B. Brown Recluse Spider |
- Brown recluse spiders are tan with a dark
brown fiddle-shaped marking on their
cephalothorax.
- They are fairly small spiders, only
reaching ¼ to ½ of an inch in length.
- These spiders are typically found outside
in debris, wood piles or under bark, stones or
logs. They can be located indoors, usually in
storage areas such as closets or attics.
- Brown recluses are nocturnal. They feed
upon insects that are soft-bodied such as
cockroaches, silverfish or crickets.
- Bites to humans generally occur when a
spider gets into shoes or clothing or crawls
into bedding. Brown recluse venom causes
necrosis, or tissue death, at the site of the
bite. The effects are usually localized. The
initial bite is usually painless, but a
burning sensation develops at the site in
about 30-60 minutes. The bite site will begin
to redden and enlarge. A blister full of pus
will form in the center of the bite. Generally
within 12-24 hours after the bite occurred,
the victim will experience fever, nausea and
vomiting. The tissue around the bite is killed
and secondary infection may develop.
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| Millipedes |
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- Millipedes have two pairs of legs for each
body segment. Millipedes are cylindrical in
shape and often brown, black or yellowish in
color.
- Millipedes are generally harmless. Most
will excrete a liquid that has a bad odor if
disturbed. They also tend to curl up when
frightened. Some species expel a liquid that
can cause skin irritation in humans. It is
thought that this liquid is possibly toxic to
small mammals that feed on millipedes.
- Millipedes are usually found outside where
they eat decaying organic matter. They may
also feed upon roots or leaves that are on the
ground.
- People can reduce the number of millipedes
by dethatching their lawn or removing
harborage areas such as rocks, mulch beds or
piles of debris.
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| Isopods |
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- Isopods are often called pillbugs, sowbugs
or roly-polys. These occasional pests are
actually crustaceans and are more closely
related to lobster, crab and shrimp than
insects! . Their bodies are oval and flat on
the bottom, but convex on the top. They have
seven pairs of legs and can be brown, red or
whitish in color.
- Isopods like moist areas. They can be
found under objects on the ground, in leaf
litter and may even bury themselves in soil.
They tend to become most active at night.
Isopods consume decaying vegetable matter and
are often found in mulch beds.
- Sowbugs have two tail-like appendages
protruding from the tip of their abdomen.
Sowbugs cannot roll up into a ball when
disturbed; pillbugs can.
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| Rodents |
- Rodents, primarily rats and mice, are a public health
threat. They are known to carry diseases - most notably
hantavirus.
- Rodents can transmit these diseases by contaminating
our food supply. They can also damage structures through
their gnawing or chewing. Rats can chew through wood,
aluminum, cement and sheet rock. They can gnaw through
plumbing pipes to gain access to water - rats must drink
water on a daily basis or obtain water through their food
source. Rats usually have a preference for certain foods,
but are provided with numerous food sources by humans
- Rats are most active shortly after sunset and before
dawn. Rats and mice have vision that is adapted for
nighttime. They are color blind, but can differentiate
between various shades. They have hairs on their body that
are attached to sensory nerves that help them to sense
their environment. Hearing is well-developed enabling
rodents to hear in sonic and ultrasonic ranges.
Some species include:
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| A. Norway Rat |
- The Norway rat is also called the brown
rat, gray rat, sewer rat, water rat, wharf rat
and barn rat. This rat will grow up to 16
inches from nose to tail. The tail is shorter
in length than the body. These rats are
typically a grayish-brown color, but can be a
blackish or reddish-brown.
- Norway rats will nest in burrows in the
ground. Burrows that have a smooth appearance
at entrances are usually active burrows.
- These rats often feed on grains, seeds and
vegetation, but will feed on anything provided
in urban settings. These rats will also
separate undigested food particles from animal
fecal material.
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| B. Roof Rat / Black Rat |
- This rat also takes the names of ship rat
and house rat. They are an arboreal, or
tree-dwelling, species. Roof rats are medium
sized and around 16 inches from nose to tail.
Their tail is longer than its body. These rats
are black or brown with a whitish or gray
belly.
- Roof rats tend to nest in trees and
vegetation, but will also nest in attics or
wall voids. Roof rats also nest in the ground,
if Norway rats are not in the same area.
- Roof rats will feed on snails, nuts or
fruit.
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| C. House Mouse |
- The house mouse is about five to eight
inches long and has very large, distinct ears.
- Their color may range from light brown to
almost black. They have a tail that is as long
as the head and body combined.
- Mice have peak activity periods right
after dusk and again before dawn. They are
primarily nocturnal, but will have short
periods of feeding throughout the day.
- The house mouse will eat all types of
food. They will consume seeds, insects,
snails, carrion and worms. Mice are capable of
surviving long periods without water.
- Mice are nearsighted and rely on their
sense of smell to provide information about
their environment. Mice use urine to mark
mating and feeding areas and paths to these
areas.
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