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About Bugs

With excerpts from "The Best Control"
by Stephen Tvedten

Ants

Carpenter Ants

Subfamily Formicinae
Camponotus Spp.

GENERAL DESCRIPTION

Adult - The most visible ant found in and around buildings; they are large, approximately 1 /4" to 3/4" in length. Thorax evenly rounded. Circle of hairs at abdomen tip. (Polymorphic adults will vary in size in the same nest.) Black, yellowish or black variegated with reddish (rusty) brown or grayish in color. At least ten species are native to the United States; they are found nesting in decaying wood, including lumber in buildings, but do not eat wood; primary foods are honeydew derived from other insects, as well as fruit, fruit juice, meat, grease, fat and dead insects. Their thin waist consists of one petiole or "knot" which is pointed. The legs are long and the antennae elbowed. The winged forms have four wings, the front wings longer and larger than the hind wings. The male can be distinguished from the female by its smaller head and protruding genitalia. Ants in the genus Crematogasta are also called "carpenter ants". The most common species is Lineolata (Say) which is variably colored and only about 1/8" long. They sound like crinkling cellophane as they move about inside their nests.

  • Larva - White grub-like young found only within the nest where it is fed and cared for by adult workers.
  • Pupa - Brown in paper-like cocoon. Size of the cocoon is dependent on the type of pupa inside-worker, female or male.
  • Egg - Small, white, egg-shaped object laid singly by the queen ant within the nest.

LENGTH OF LIFE CYCLE - Approximately 2-1/2 months or longer. Colonies of ants mature in 2 to 6 years and normally contain 2,000 - 3,000 individuals. Swarms of 200-400 winged reproductive forms are then produced each spring or early in the summer - they mate in the air.

HABITAT - They can be found outside or inside or any room in a structure, particularly where food or garbage is stored, prepared or handled. Initial nesting usually occurs in softer wood, such as decaying logs, moist or rotted beams, structure siding, trees and wood fences, hollow doors, window and door sills, decks, fireplaces, sill boxes, etc. especially wherever there is or has been a source of moisture. They are nocturnal by choice and are, therefore, best observed at night. They love high humidity (wood or voids with over 20% moisture content), so use a dehumidifier and repair all moisture problems.

NATURE OF INJURY - These ants carve galleries into the damaged/soft wood (with the grain) to make their nest. They may eventually hollow out and damage sound structural timbers. They are also a visual annoyance as they wander in search of food, and the foraging workers have rather large mandibles with which they can bite. Bang on the wall and then listen for carpenter ant nests with a stethoscope.

FOOD - They do not eat wood, they only cut galleries and create frass (wood fragments or sawdust) as they hollow out their nests from decayed areas in your building. Workers forage for sweet food such as honeydew, syrups, honey, jelly sugar and other sweet materials, e.g., apples and fruit, or even garbage, dead or living insects, grease, fat and/or meat scraps. They may travel 300 feet or more from the brood nest to find food. Food is carried back to the nest where it is regurgitated and used to feed the queen, larva and non-foraging workers.

HARBORAGE POINTS (Nests) - Typical carpenter ant nesting sites are found inside branches, hollow porch columns, exposed wood beams, floors and walls near leaking plumbing, roof areas with leaks or built-up roofs, walls near stopped-up gutters, hollow core doors, wallboards, particularly under sinks, toilets, dishwashers and/or windows that sweat such as storm windows, cabinet bases, planter boxes, wood shingle roofs, firewood in fireplaces, or in any damp or rotten structural members of a structure. In the woods, they will be found in fallen logs, hollow trees, or around broken limbs. Galleries are continually being carved inside timbers to create the ever-expanding nest . As the colony numbers increase the nest will eventually extend into dry, sound lumber. Galleries are irregular in shape, smooth surfaced and clean; they look like they have been sand-papered. Frass or wood fragments are carried from the nest and deposited outside. Piles of this frass or sawdust (which can also include insect fragments, soil particles and food residues) may often be found beneath infested wood members and is very helpful in locating the nests. Inspections should also be made at night using red or yellow light.

For control of carpenter ant infestation, you must locate the nest. Some people have had success putting out sugary food and/or trays of frozen crickets and following the ants carrying food back to their nest. If you can remove the nest completely, no further control will be needed. Otherwise, poison the nest with boric acid, sodium borate, silica gel or diatomaceous earth. Install negative ion plates.

Remove and replace all damaged and wet wood and do all necessary repairs to prevent future moisture build-up in wood. Also take precautions to prevent access to your building, e.g., trim branches that touch or overhang the building and remove debris on the roof..

Even if least-toxic pesticide poisons are to be used, only use them to spot treat the nest. Never allow monthly synthetic pesticide poison applications or allow an application of these toxic materials to the entire building. These practices are unnecessary and very dangerous to people and pets.

Control is easily accomplished if the nests can be located. Tap the walls and hollow doors and listen for a rustling noise in the wall, floor, woodwork or prefabricated doors that is loud enough to hear when you place your ear against the surface adjacent to the nest. A thorough initial inspection should be made both indoors and outdoors to locate the colony sources. When a nest is located, it should be treated with boric acid or other desiccation dust, or you can completely treat the wood with sodium borate or use baits. Install a dehumidifier.

OUTSIDE TREATMENT - Carpenter ants migrate from recently removed trees and buildings and from rotten structural timbers, trees, old logs, fireplace wood and similar areas to enter your building. Remove and burn all infested wood, hollow trees, old logs, firewood, etc. and/or treat with boric acid and/or sodium borate and fill all cavities. If your building has with vine covered walls (which are particularly attractive to ants), you should consider removing the vines completely. Carpenter Ants may also use crevices in wood shingle roofs for harborage. If found, caulk these areas completely. Prune all tree limbs and branches so that they do not touch or overhang the building and correct all visible moisture problems that cause wet and rotting wood. Install and properly maintain eavestroughs and downspouts. Do not forget to install enough dehumidifiers. Attics and crawl spaces should be inspected and spot treated or baited and properly vented. If necessary, they may even be treated completely with sodium borate per the label directions. Spray nests with white vinegar and/or with enzyme cleaners.

INTERIOR WORK - Thoroughly caulk all cracks and crevices that ants could use to migrate from wallboards and other similar areas to their food sources. Watch for ants or the sawdust like material they discard in building their nests. When the actual nests are located or suspected, treat the voids with dusts, e.g. boric acid and/or sodium borate. Nests in wall voids such as under windows may require drilling. Be sure to reseal with a caulk or plaster any holes you make to inject boric acid, silica gels, diatomaceous earth and/or sodium borate.

Reinfestations - Reinfestations usually indicate that more ants have moved into the structure or that ants have not contacted earlier controls in their foraging trips. Be sure that enough time has elapsed (at least two weeks) to gain control before making any retreatments. Make a careful re-examination to try to locate the nests. Look for sawdust or ants. Small jar lids of honey or jelly or cut up crickets can attract ants so that you may be able to follow them to the nests. Carpenter ants, however, may not go directly to a nest but take other erratic paths. Thus, considerable time may be required to find all of the nests. At night follow them with a flashlight covered with red or yellow cellophane. Properly place use either labeled commercially prepared baits or equal portions of honey or jelly and/or peanut butter and boric acid. Place the baits out of reach of children, pets and food. If you find ants dead by the bait, cut back on the boric acid.

LARGE ANTS (1/2 Inch or Larger)

CARPENTER ANT CAMPONOTUS SUMMARY

There are many species of Carpenter Ants in North America; few enter structures to forage; fewer nest in structures. But these two habits (foraging and nesting inside) coupled with their large size and vigorous activity make these invaders impossible to ignore. Two species claim the majority of attention: the Black Carpenter ant of the eastern and southern United States and the Western Carpenter ant, a particular problem in the Pacific northwest. As their name implies, carpenter ants work and live in wood; they do not digest it. They mate in teh air - the queen gets enough sperm to last 10 years or more.

An important first consideration in the control of ants is to determine whether:

  • the colony is located inside the structure, or
  • the colony is located outside the structure.

Indications that a colony is inside are when: ant workers are consistently found inside over a long uninterrupted period, nest building is observed inside (Look for wood shavings of carpenter ants, "dumping " materials of pavement ants, etc.), the infestation is located in a high-rise building, or inside swarming is observed.

Indications that a colony is outside are when:  ants outside can be seen coming inside.

Nesting sites outside are near the structure with an inside infestation, (Look for mounds next to the foundation, or trees with large carpenter ant colonies touching an infested portion of the house.)

Ants nest under slabs or swarm inside, but workers do not forage inside.

Ants inside can be "trailed" outside

Whether the colony is inside or outdoors, ants that are known to tend honeydew-producing insects often forage inside before plant insect populations can buildup outside. After populations of aphids, mealybugs, scale insects, white flies and plant-hoppers become numerous (in late spring), ant colonies nearby put a great deal of energy into tending and protecting these plant-sucking insects. Worker ants foraging inside kitchens and basements often leave houses at this time. They may return in dry weather seeking moisture, but often will not be seen until the next spring. When pest control efforts coincide with this period, it is often difficult to tell whether the pest management procedures are effective, or whether the ants. abandoned the structure due to natural habit.

Attend to the following general considerations in developing an ant control plan:

Inspection

Talk to the occupants. Get all information possible from the residents.

Observe ant worker movement and plot on diagram if need be. Look for the focus of the infestation.

To confirm observations, use traps baited with a grease and a sugar or syrup or other ingredients suggested in The Best Control individual control notes, e.g., peanut butter and cookies.

Inside: Inspect holes and cracks where workers enter, old or new moisture stains, food accumulations, e.g., dry pet food, activity near appliances. e. g., dishwasher and washing machines, under bath tubs, showers, in drawers, corresponding areas in adjoining room or rooms above and below activity.

Outside: Inspect for workers behind vines, shrubs, other plants near house, expansion joints, slabs, patio blocks, bricks, boards, plant pots, under and inside wooden columns and pillars, outside door and window frames, window wells, penetrations of house wall by telephone wires, air conditioning refrigerant pipes, trees that harbor colonies and provide access to houses by overhanging limbs that touch or even scratch shingles; water meters and storm drain inspection manholes. Inspect plants for ants tending aphids, mealybugs. Note: Leaf-cutter ants will not defoliate tall plants, e.g., roses, fruit trees, etc. if loosely-wadded sheep wool is tied around the stem; ants don't like to cross it and it is almost totally effective.

Habitat Alteration

  • Caulk wall penetrations and mortar masonry cracks. Wall penetrations include utility lines, air conditioning, refrigerant pipes, phone lines, etc.
  • Tighten door and window frames. Sprinkle talcum powder and/or Gold Bond® powders.
  • Repair water leaks.
  • Trim shrubbery away from house.
  • Remove firewood that is stacked close to buildings; boards, stones, etc. that encourage nesting; screen openings in hollow pillars, columns, and ventilators.
  • Control ant-tended aphids and mealybugs with horticultural pesticides, such as oils or soaps.

Control

Conduct a thorough inspection. Install negative ion plates. Spray and/or mop with borax.

Consider the species when choosing bait. Use baits with stomach poisons, e.g., boric acid, or with insect growth regulators. Baits are excellent in critical areas, e.g., computer or hospital rooms. Do not spray or dust around baits. Never store baits or bait materials where they can be contaminated with any other odors, especially fumes of pesticides. Ants and other insects can detect minute amounts of foreign or repellent chemicals and will avoid chalk lines.

Vacuum and then carefully caulk/seal all cracks and crevices where a nest is suspected.

Spray nests with white vinegar, enzyme cleaners or sprinkle them with baby powder or crushed chalk.

Develop a specific pest management plan. Where large outside areas need treatment, e.g., fire ant problems; do not treat with pesticide poisons as an extension of a yard problem. Ants use two methods to establish trails - phermones and structural guideline orientation - investigate both. Properly install negative ion plates; use borax laundry powder and/or spray with white vinegar, enzyme cleaners and/or soapy water. Practice proper sanitation, structural alterations and moisture source reduction.

Follow-up - Reinspect in two weeks; ask all occupants if they have seen any remaining troublesome ant problems. Remember, pesticide poison treatments can repel ants and make them active in other areas. Colonies with multiple queens may break up into several colonies, so do not use synthetic pesticide poisons for this reason, and because they are very dangerous to you, the occupants and the environment. Use IGR's, baits, vacuums and, if absolutely necessary, you may apply spot treatments of silica aerogel and/or boric acid dusts as a last resort.

Carpenter ants are usually a symptom of a water leak or moisture problem because they usually nest in wood that remains wet. Check for leaks around windows and doors, plumbing fixtures and under shingles and make necessary repairs. Keep foods in tightly sealed containers or in the refrigerator. Most ants prefer sweets, protein, fats or grease. Practice good sanitation. Avoid leaving dirty dishes or food particles where they are accessible to ants. Caulk cracks and crevices in building foundations. Remove rotted lumber, firewood and stumps inside crawls and from around buildings. Prune tree branches that overhand or touch buildings to prevent carpenter ants from coming inside.

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Fire Ants

Tribe Solenopsidini, Subfamily Mymicinae

BIOLOGY AND IDENTIFICATION OF FIRE ANTS

Pest Species of Fire Ants — The “Ant from Hell”

There are many species of fire ants in the United States, but the most serious U. S.  fire ant pests are four in the genus Solenopsis: the Red Imported Fire Ant, the Black Imported Fire Ant, the Southern Fire Ant, and the native fire ant.  Distinguishing between imported and native species of fire ant is difficult, even for experts.  Identification usually requires 40 or more randomly collected worker ants for study.  The following sections briefly discuss the four fire ants of major concern in the U. S.  The Little Fire Ant is described later in the chapter.

Red Imported Fire Ant, Subfamily - Mymicinae

Introduced from western Brazil (Argentina or Paraguay), this fire ant species quickly and usually becomes the number one fire ant pest wherever it occurs.  The main reason for this is when it was introduced into the U. S. about 60 years ago its natural enemies were left behind in South America.  Since 1958, over 7,100 compounds have been evaluated for delayed toxicity against just this ant by the USDA Agricultural Research Service.  The Red Imported Fire Ant, Solenopsis invicta - (Buren) , is associated with disturbed habitats, mostly created by humans, and is abundant in old fields, pastures, lawns, roadsides and many other open sunny areas.  It often inhabits fields used for agricultural purposes where its large above-ground mounds create problems in planting and harvesting crops.  John Morrison, Jr., et al, 1997, noted that Red Imported Ants will feed on wheat, corn and sorgham seed and to some extent on dry cotton and soybean seeds under laboratory conditions.  In areas where grass is periodically cut, mounds are flush with the ground and are hard to see.  This fire ant species is rarely found in mature forests and other areas with heavy shade, unless part of the area has been disturbed or opened by fire or storms.  Solenopsis invicta has the most toxic venom of all  U. S. fire ants.

The Red Imported Fire Ant builds mounds that are, on average, 10” - 24" in diameter and 18" high.  But larger fire ant mounds are not uncommon.  They also may extend 6' underground.  They also build soil tubes on foundations of buildings.  The primary function of mounds, beyond that of the simple ground nests of other ants, is microclimate regulation - controlling the temperature and humidity.  The ants can maintain a temperature inside the mound much higher than that outside, allowing them to continue colony growth even during cool weather.  They have a filtering system that admits only liquids into their digestive systems that even removes bacteria (e.g. Bacillus thurmingiensis) - so feed them sugar water with 1% boric acid or .5% Disodium Octoborate Tetrahydrate  for 8 weeks.  Originally it was incorrectly identified as Solenopsis saevissima richteri (Forel).

The fire ant mounds are symmetrical piles of excavated soil, rich in organic materials, laced with interconnected galleries and chambers.  The soil below ground also contains galleries and chambers.  During foraging periods only a small percentage of ants may be inside the mound; the rest are out gathering food.  That is why there are times of the day or night that flooding or drenching mounds are more effective.

A newly established fire ant mound or nest rapidly produces young workers, and winged reproductives are produced for most of the year (8-10 months), much longer than the native species.  Red imported fire ants quickly spread through a suitable habitat, and the species is now found throughout most of the southeastern United States and west into Texas (over 275 million acres in 11 southern states and Puerto Rico).  They can and quickly do latch onto your flesh with barbed mandibles and sting repeatedly, pivoting in tiny circles until you, the victim can repel them or dies.  The venom burns like a hot match and causes tiny blisters that persist for days if left untreated or for weeks of scratched or infected.

Black Imported Fire Ant

The Black Imported Fire Ant, Solenopsis richteri (Forel), is very similar to the Red Imported Fire Ant.  It is currently limited to a small area of northern Mississippi and Alabama.  It may be displaced from established habitats by the Red Fire Ant.  The Black Fire Ants come here from Argentina and/or Uruguay.

Scientists have long thought that the Black and Red Fire Ants were two distinct species.  Recently it has been discovered that hybrids of these ants produce viable offspring, and some scientists now wonder whether they are simply two races of the same species, varying only in color and perhaps behavior and/or have created hybrids.

Southern (California) Fire Ant

The Southern Fire Ant, Solenopsis xyloni, (McCook) is a native species that occurs from North Carolina south to northern Florida, along the Gulf Coast and west to California.  Colonies may be observed as mounds or more commonly may be constructed under the cover of stones, boards, and other objects or at the base of plants.  These ants also nest in wood or the masonry of houses, especially around heat sources such as fireplaces.  Nests often consist of loose soil with many craters scattered over 2 to 4 square feet.  In dry areas nests may be along streams, arroyos, and other shaded locations where soil moisture is high.  Southern fire ants usually swarm in late spring or summer.

Fire Ant (Tropical or Native fire ant)

The fire ant, Solenopsis geminata (Fabricus), is a native species sometimes called the Tropical Fire Ant.  This ant ranges from South Carolina to Florida and west to Texas.  Very similar to the Southern Fire Ant, this native fire ant usually nests in mounds constructed around clumps of vegetation, but may also nest under objects or in rotting wood.

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Bees

HOW TO AVOID BEING STUNG:

  • Do not cook or eat outdoors during yellowjacket season.
  • Do not wear brightly colored and patterned clothes.
  • Do not wear scented talcs, perfumes, colognes and other scents, including scented hair spray, suntan lotion, cosmetics, deodorants and shaving lotions.
  • Do not sit down on or handle wet towels, washcloths or clothes without first checking to make sure no yellow jackets are drinking the moisture.
  • Do not carry sugary or meat snacks in open containers.
  • Do not drink soft drinks from open containers. Use a glass or a lid with a straw.
  • Do not hit or swat at bees or yellowjackets. Squashing a yellowjacket releases a chemical pheromone (alarm) that signals other wasps and yellowjackets in the area to attack. Yellowjackets will not usually sting or bit a person at rest if they or their nest have not been disturbed or threatened by a person's swatting or by the quick movement of their arms or legs. They may land on your skin to inspect a smell or even to get water if you are sweating heavily, but they will leave of their own accord if you stay calm and do not move quickly. If you lack the patience, you can brush them off gently with a piece of paper as long as you move slowly and deliberately.
  • Do not walk in the flight paths of these stinging insects.
  • Do not go barefoot, especially through vegetation.
  • Do not shine a flashlight or cast a shadow on the nest.
  • If a bee or wasp enters your moving car, pull off to the side of the road and stop, if
    possible; open the windows and let it leave by itself.
  • Wear proper protection, not only during treatment/control but also during inspections.
  • Wear gloves when picking up rocks, timbers and firewood. Use a rake to move debris
    and mulch.
  • Don't vibrate the nest or make any unnecessary movements.
  • Final Note: If you have any sensitivity to insect stings, you should never attempt any control.

General Control Notes - Since bees, yellowjackets, hornets and wasps are all considered to be beneficial insects, control should only be done where there is an imminent threat to people or their pets. These insects can (when provoked) inflict a painful, venomous sting and/or bite. Some people are so sensitive to the venom's complex amino acids, proteins and enzymes they develop severe allergic reactions known as anaphylaxis and may even die without an injection of an antidote. Africanized bees can and do kill normal people during an attack frenzy that can include hundreds of stings. Remove or cover all garbage, dropped fruit, soft drinks, pet food and other protein and sugar food sources. Routinely clean all dumpsters, garbage cans and spills. If you spray stinging insects with enzymes or dish detergent mixed with water, they generally die in 6 seconds, or simply vacuum them up.

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Fleas

INTEGRATED PEST CONTROL MEASURES

Preventing fleas infestations is always easier than removing them. The simplest and least expensive way is simply not have pets or only to keep them inside or outside at all times. It helps not to let your pets roam. Remember to keep your pets and their bedding clean at all times and to comb your pets with a flea comb at least weekly, especially during warm weather. Flea combs have very close teeth which remove fleas from your pet. Most pets love this attention. Dip the comb in hot, soapy water or enzyme cleaners to kill the fleas you "catch". If you choose to use dangerous flea collars you must replace them on pets about every 3 months. It is better, however, and safer to wash your pets weekly with a good pet shampoo, or wash them with a human shampoo and a mixture of orange oil (which is available at health food stores) as an aid in flea destruction. Please note that many pets and people can get skin irritations and other health problems because of their exposure to the poisons in organophosphate flea collars and other direct applications of toxic insecticide poisons in sprays, dusts, shampoos or dips. Proper control of fleas always involves controlling the fleas on your pets as well as controlling them in the infested areas of your home. There are many veterinarians who recommend weekly applications of a lightly misted flea spray containing Precor, which is an insect growth regulator, IGR, and/or sprays containing pyrethrins and pipernol butoxide as a control especially during the peak flea months in your area. Some pet owners have told us they have had success using diluted enzyme cleaners or Avon's Skin-So-Soft lotion directly on their pets or in their pet's bath water for safer flea control on their pets. There are many kinds of home and commercial flea preparations available for flea control on pets, but we suggest you check with your veterinarian and follow his/her professional advice. Great care must be taken, however, especially in the case of cats as they lick themselves and might swallow enough insecticide poison or shampoo to damage themselves. Please note there are many skin problems which can make your pets scratch, (as though they had fleas) that are caused by other factors, e.g., overbathing, diseases, etc., this is why it is wise to see several veterinarians before treating your pet for imaginary fleas with poison.

IPM OR LEAST-TOXIC FLEA CONTROL SUMMARY

  • Routinely monitor population levels and keep a log of your observations.
  • Restrict your pet's access inside your home.
  • Vacuum on a weekly basis during the year and daily in late summer and early fall when flea populations increase. Dispose of the filled bags by burning, composting or sealing in a black plastic bag and/or placing in the freezer for a few days or in a sunny location outside in a black plastic bag to "cook".
  • Weekly remove and wash all bedding and rugs with which pets come in contact.
  • Flea comb your pet regularly. Dip the comb in soapy water or enzyme cleaner.
  • Bathe your pet if the flea population starts to build up.
  • Only if the above procedures are insufficient, try an insect growth regulator (IGR) formulation to prevent adult flea emergence.
  • Spot treat infested areas indoors/outdoors with insecticidal soap and/or an IGR or a least-toxic product following the label instructions carefully and protecting yourself and others while applying them. Try spraying the carpet and lawn with natural soaps or Safe Solutions, Inc. Enzyme Cleaner with Peppermint at a diluted rate of 1 oz. per quart.
  • Try a professional steam-cleaning, enzyme- or boron based cleaners and daily vacuuming and/or negative ion plates first. Boron is toxic if ingested.
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