The Argentine ant is about 3 mm long and dark colored. It likes moist places and sweet food. It "farm" scales and aphids on plants, protecting them from predators, and consuming their sweet secretions which damages the plants. You can often see an ant trail climbing trees and other foliage. They enter homes in search of food and water.

Treatment Options: Spray or Bait

The German Cockroach The German cockroach measures about 1.3 to 1.6 cm long. It can be tan through brown to almost black, and has two dark parallel streaks running from the head to the base of the wings. Although it has wings, it is unable to sustain flight. These insects are particularly associated with restaurants, food processing facilities, hotels, and nursing homes. In colder climates, they are found only near homes, since they are not very tolerant to cold.

The German cockroach reproduces faster than any other residential cockroach going from egg to sexually mature adult in approximately 123 days.

Oriental Cockroach
The Oriental cockroach, also known as the waterbug, measures about 1 in (2.5 cm) in length. It is dark brown to black in color and has a glossy body.

It can often be found around decaying organic matter, and in sewers, drains, damp basements, porches, and other damp locations. They can be found outside in bushes, under leaf groundcover, under mulch, and around other damp places outdoors.

Smoky-Brown Cockroach
The Smoky-Brown cockroach has a uniformly dark brown–mahogany coloration. The smokybrown cockroach can feed off a wide array of organic (including decaying) matter. Like most cockroaches, it is a scavenger. It tends to lose more moisture than its relatives and requires water every 2–3 days. The Smoky-Brown cockroach may come indoors to look for food and even to live; generally, however, in warm weather, it will move outdoors.

American Cockroach
The American cockroach is the largest species of common cockroach. It grows to an average length of 4 cm (1.6 in). They are reddish brown and have a yellowish margin on the body region behind the head. The odorous secretions produced by American cockroaches can alter the flavor of food. Cockroaches can pick up disease-causing bacteria, such as Salmonella, on their legs and later deposit them on foods and cause food infections or poisoning. House dust containing cockroach feces and body parts can trigger allergic reactions and asthma in certain individuals.

Treatment: Spray or Bait

Black Widow
The Black Widow spider is perhaps the best-known spider. Its bite is dangerous because of the neurotoxin latrotoxin, which causes the condition latrodectism. The female black widow has unusually large venom glands and its bite is particularly harmful to humans; however, Latrodectus bites rarely kill humans if proper medical treatment is provided.

Brown Widow
The Brown Widow is usually found around buildings in tropical areas. They can compete with populations of the black widow spider. Eggs hatch in approximately 20 days. Female Brown Widows "lay about 80 eggs per sac and can make 20 egg sacs over a lifetime."

Orb Weaver
The typical Orb-Weaver spiders are the most common group of builders of spiral wheel-shaped webs often found in gardens, fields and forests. Orb-weavers have eight similar eyes, hairy or spiny legs, and no stridulating organs.

Wolf Spider
Wolf spiders are robust and agile hunters with excellent eyesight. They live mostly solitary lives and hunt alone. Wolf spiders resemble Nursery web spiders , but wolf spiders carry their egg sacs by attaching them to their spinnerets. Two of the Wolf spider's eight eyes are large and prominent, which distinguishes them from the Nursery web spiders whose eyes are all of approximately equal size.

Treatment: Spray

Silverfish are nocturnal insects typically 13–25 mm (0.5–1 in) long.Their abdomens taper at the end, giving them a fish-like appearance.The newly hatched are whitish, but develop a greyish hue and metallic shine as they get older. They have long antennae, and move in a wiggling motion that resembles the movement of a fish. This, coupled with their appearance, influences their common name. Silverfish typically live for two to eight years.

Treatment: Spray or Fog

Fleas are wingless insects 1.5 to 3.3 mm (1/16 to 1/8 in.) that are agile, usually dark colored (for example, the reddish-brown of the cat flea), with tube-like mouth-parts adapted to feeding on the blood of their hosts. Their legs are long, the hind pair well adapted for jumping: a flea can jump vertically up to 7 inches (18 cm) and horizontally up to 13 inches (33 cm),making the flea one of the best jumpers of all known animals (relative to body size).

Treatment: Spray or Fog

Earwigs are one of the smaller insect orders. Some groups are tiny parasites on mammals and lack the typical pincers. Earwigs rarely use their flying ability. Earwigs are nocturnal; they often hide in small, moist crevices during the day, and are active at night, feeding on a wide variety of insects and plants. Damage to foliage, flowers, and various crops is commonly blamed on earwigs.

Treatment Options: Spray

Norway Rat
The Norway, or Brown, rat lives where vegetation is tall and affords adequate protection. This rat lives principally in basements, on the ground floor, or in burrows under sidewalks or outbuildings. They appear to be most common about feed stores, chicken houses, and garbage dumps. Although more at home on the ground, these rats are adept at climbing and have been observed traveling along telephone wires from one building to another. In places they become exceedingly numerous and destructive.

They feed on a variety of items including both plant and animal materials. All sorts of garbage appear to be welcome, but their main stay is plant material. Grains of various sorts are highly prized. When established around poultry houses, they feed extensively on eggs and young chickens. They even have been known to kill lambs and young pigs!

Roof Rat
The Roof rat is a common long-tailed rodent. A typical adult black rat is 12.75–18.25 in (32.4–46.4 cm) long, including a 6.5–10 in (17–25 cm) tail, and weighs 4–12 oz. (110–340 g). Despite its name, the black rat exhibits several color forms. It is usually black to light brown in color with a lighter underside.

Treatment: Bait

Gophers weigh around 0.5 pounds (230 g), and are about 15 inches (38 cm) long in body length, with a tail 7 inches (18 cm) long. Their lifespan is normally 2–3 years . Gophers dig tunnels and subterranean chambers.There are over 100 kinds of gophers in America. Gophers, because of their burrowing, can disrupt human plans like commercial agriculture, garden plots, some landscaping, and some underground cables. This has led to their frequent treatment as pests. Gophers are generally timid but may attack if provoked. If deprived of their normal vegetarian food supply, gophers have been known to resort to cannibalism. Treatment Options: Bait

Bees are flying insects closely related to wasps and ants, and are known for their role in pollination and for producing honey and beeswax. Bees are a monophyletic lineage within the superfamily Apoidea, presently classified by the unranked taxon name Anthophila. There are nearly 20,000 known species of bees in seven to nine recognized families,[1] though many are undescribed and the actual number is probably higher. They are found on every continent except Antarctica, in every habitat on the planet that contains insect-pollinated flowering plants.

Bees are adapted for feeding on nectar and pollen, the former primarily as an energy source and the latter primarily for protein and other nutrients. Most pollen is used as food for larvae.

Bumblebees Bumblebees (Bombus terrestris, Bombus pratorum, et al.) are eusocial in a manner quite similar to the eusocial Vespidae such as hornets. The queen initiates a nest on her own (unlike queens of honey bees and stingless bees which start nests via swarms in the company of a large worker force). Bumblebee colonies typically have from 50 to 200 bees at peak population, which occurs in mid to late summer. Nest architecture is simple, limited by the size of the nest cavity (pre-existing), and colonies are rarely perennial. Bumblebee queens sometimes seek winter safety in honey bee hives, where they are sometimes found dead in the spring by beekeepers, presumably stung to death by the honey bees. It is unknown whether any survive winter in such an environment.

Bumblebees are one of the more important wild pollinators, but have declined significantly in recent decades.

Stingless bees Stingless bees are very diverse in behavior, but all are highly eusocial. They practise mass provisioning, complex nest architecture, and perennial colonies.

Honey bees The true honey bees (genus Apis) have arguably the most complex social behavior among the bees. The European (or Western) honey bee, Apis mellifera, is the best known bee species and one of the best known of all insects.

Africanized honey bee Africanized bees, also called killer bees, are a hybrid strain of Apis mellifera derived from experiments by Warwick Estevam Kerr to cross European and African honey bees. Several queen bees escaped from his laboratory in South America and have spread throughout the Americas. Africanized honey bees are more defensive than European honey bees.

Treatment: Spray / Dust / Fog