Daily Archives: November 3, 2013

Introduction

Sometimes referred to as "red coats," "chinches," or "mahogany flats" (USDA 1976), bed bugs, Cimex lectularius Linnaeus, are blood feeding parasites of humans, chickens, bats and occasionally domesticated animals (Usinger 1966). Bed bugs are suspected carriers of leprosy, oriental sore, Q-fever, and brucellosis (Krueger 2000) but have never been implicated in the spread of disease to humans (Dolling 1991). After the development and use of modern insecticides, such as DDT, bed bug infestations have virtually disappeared. However, since 1995, pest management professionals have noticed an increase in bed bug related complaints (Krueger 2000).

Adult bed bug, Cimex lectularius Linnaeus, feeding. Photography by: Joseph Smith, University of Florida

Human dwellings, birds nests, and bat caves make the most suitable habitats for bed bugs since they offer warmth, areas to hide, and most importantly hosts on which to feed (Dolling 1991). Bed bugs are not evenly distributed throughout the environment but are instead concentrated in harborages (Usinger 1966). Within human dwellings, harborages include cracks and crevices in walls, furniture, behind wallpaper and wood paneling, or under carpeting (Krueger 2000). Bed bugs are usually only active during night but will feed during the day when hungry (Usinger 1966). Bed bugs can be transported on clothing, in traveler's luggage, or in bedding and furniture (USDA 1976) but lack appendages to enable them to cling to hair, fur, or feathers, so are rarely found on hosts (Dolling 1991).

The adult bed bug is a broadly flattened, ovoid, insect with greatly reduced wings (Schuh and Slater 1995). The reduced fore wings, or hemelytra, are broader than they are long, with a somewhat rectangular appearance. The sides of the pronotum are covered with short, stiff hairs (Furman and Catts 1970). Before feeding, bed bugs are usually brown in color and range from 6 to 9.5 mm in length. After feeding, the body is often swollen and red in color (USDA 1976).

Dorsalview of an adult bed bug, Cimex lectularius Linnaeus. Photograph by: David Almquist, University of Florida

Lateral view of an adult bed bug, Cimex lectularius Linnaeus. Photograph by: Joseph Smith, University of Florida

Nymph of the bed bug, Cimex lectularius Linnaeus. Photograph by, Joseph Smith, University of Florida

The two bed bugs most important to man are the common bed bug, Cimex lectularius, and the tropical bed bug, Cimex hemipterus. These two species of bed bugs can easily be distinguished by looking at the prothorax, the first segment of the thorax. The prothorax of the common bed bug is more expanded laterally and the extreme margins are more flattened than that of the tropical bed bug (Ghauri 1973).

Because of their confined living spaces, copulation among male and female bed bugs is difficult. The female possesses a secondary copulatory aperture, Ribaga's organ or paragenital sinus, on the fourth abdominal sternum where spermatozoa from the male are injected. The spermatozoa then migrate to the ovaries by passing through the haemocoel, or body cavity (Dolling 1991). The female bed bug lays approximately 200 eggs during her life span at a rate of one to 12 eggs per day (Krueger 2000). The eggs are laid on rough surfaces and coated with a transparent cement to adhere them to the substrate (Usinger 1966). Within six to 17 days bed bug nymphs, almost devoid of color, emerge from the eggs. After five molts, which takes approximately ten weeks, the nymphs reach maturity (USDA 1976).

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Bed Bugs in Florida

Bed bugs are sweeping across the country. For the better part of a century, Americans have lived in the comfort of knowing that the pests were almost completely eradicated. Following major spraying operations in the years following World War II, the United States freed itself of most pests, with just a few hardy species remaining. But bed bugs appear to be enjoying a massive, nationwide return.

Most reports of bed bug infestation have occurred in major cities, particularly those in the countrys densely populated East Coast. New York City and Philadelphia are considered epicenters of the bed bug crisis, with hundreds of private apartment complexes hosting the parasites and a series of major hotel chains and commercial buildings falling victim to the ultra-hardy annoyances.

For the most part, Florida has been able to escape the bed bug plague. Due to its relative geographic isolation and the states large pest population, regular spraying and elimination efforts have removed most major insects from Floridas homes. But in between the common roach infestations, nasty bed bugs are popping up left and right, and spreading between buildings at an alarmingly rapid pace.

Major cities in the state have reported sporadic outbreaks, with hotels in Fort Lauderdale and Miami forced to temporarily close due to the parasitic pests. Outbreaks in private residences have been rare and lacking in any specific infestation patterns, indicating that the major pests are likely arriving on city streets due to international travel and short-term visitors.

Either way, the bugs are a major annoyance for Floridas permanent population, an irritating pest for its annual traveler load, and a giant threat to the states lucrative tourism industry. While authorities have yet to implement official measures similar to those seen in New York City and other areas that are affected by the bugs, it remains a possibility in many major commercial and residential centers.

Weve outlined the origin and spread of bed bugs in Florida below, along with a detailed list of the bugs most probable targets. If youre concerned about a possible infestation or merely planning to take preventative measures, please use our detailed guide to diagnose and treat any potential issues.

When did bed bugs become such a visible pest in Florida?

Floridas bed bug entry date is difficult to pinpoint. The state, along with many other regions in the country, has seen a significant increase in the amount of international tourists visiting its shores over the last decade. Travel industry analysts have pointed to the increased wealth of many Asian nations as a potential reason for the increase in international arrivals news thats very good economically.

But the increase in international arrivals also allows for the arrival of bed bugs, many of which are believed to have originated overseas. The United States had all but completely eradicated the pests during the latter half of the 20th century, but they appear to be back with a vengeance. Scientists are skeptical to blame any one group for their return, although international travelers do fit the bill.

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common name: bed bug scientific name: Cimex lectularius Linnaeus (Insecta: Hemiptera: Cimicidae) Introduction - Distribution - Description - Life Cycle - Survey and Management - Selected References Introduction (Back to Top)

Sometimes referred to as "red coats," "chinches," or "mahogany flats" (USDA 1976), bed bugs, Cimex lectularius Linnaeus, are blood feeding parasites of humans, chickens, bats and occasionally domesticated animals (Usinger 1966). Bed bugs are suspected carriers of leprosy, oriental sore, Q-fever, and brucellosis (Krueger 2000) but have never been implicated in the spread of disease to humans (Dolling 1991). After the development and use of modern insecticides, such as DDT, bed bug infestations have virtually disappeared. However, since 1995, pest management professionals have noticed an increase in bed bug related complaints (Krueger 2000).

Figure 1. Adult bed bug, Cimex lectularius Linnaeus, feeding. Photograph by Joseph Smith, University of Florida.

Human dwellings, birds nests, and bat caves make the most suitable habitats for bed bugs since they offer warmth, areas to hide, and most importantly hosts on which to feed (Dolling 1991). Bed bugs are not evenly distributed throughout the environment but are instead concentrated in harborages (Usinger 1966). Within human dwellings, harborages include cracks and crevices in walls, furniture, behind wallpaper and wood paneling, or under carpeting (Krueger 2000). Bed bugs are usually only active during night but will feed during the day when hungry (Usinger 1966). Bed bugs can be transported on clothing, in traveler's luggage, or in bedding and furniture (USDA 1976) but lack appendages to enable them to cling to hair, fur, or feathers, so are rarely found on hosts (Dolling 1991).

The adult bed bug is a broadly flattened, ovoid, insect with greatly reduced wings (Schuh and Slater 1995). The reduced fore wings, or hemelytra, are broader than they are long, with a somewhat rectangular appearance. The sides of the pronotum are covered with short, stiff hairs (Furman and Catts 1970). Before feeding, bed bugs are usually brown in color and range from 6 to 9.5 mm in length. After feeding, the body is often swollen and red in color (USDA 1976).

Figure 2. Dorsal view of an adult bed bug, Cimex lectularius Linnaeus. Photograph by David Almquist, University of Florida.

Figure 3. Lateral view of an adult bed bug, Cimex lectularius Linnaeus. Photograph by Joseph Smith, University of Florida.

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The warm humid climate of Florida offers a suitable condition for Bed bugs that then feeds on human and animal blood. However, Florida wasnt always a thriving environment for Bedbugs during the time when DDT was used to control the infestation of Bed bugs back then. When DDT was then later banned as it was found to be unsafe for people, animals and the environment, Bed bugs then resurfaced. Todays surge of Bed bugs is because of domestic and international travel where Bed bugs can hitch a ride in luggage.

The Bed bugs in Florida have become rampant in many homes, buildings, hospitals, delivery trucks, dormitories and hotels much to the dismay of residents. Even if Bed bugs do not transmit dangerous diseases they can cause severe skin irritation and soreness and unbearable mental and emotional stress. The Cimex hemipterus Bed bugs species can be found in the tropical regions such as Florida and have the preference of wood and paper rather than stone, plaster and textiles. They originally used to feed on bats, but when man began living in caves, these species began to feed on humans till today.

These bed bugs are of light to dark reddish brown in color with flat oval bodies measuring inches long. However, once these Bed bugs feed, their body doubles in size having an elongated and blood filled swollen body. These Bed bugs do not attach themselves to their host, but simply feeds on them while asleep and pierces the skin using an elongated beak consisting of 2 tubes where 1 is used for injecting anesthetic and anti-coagulant saliva that prevents blood clotting and numbs the skin. The other tube is then used to suck the blood out.

Reproduction of Bed Bugs

The female adult Bed bugs lay eggs in 3 to 8 batches that hatch in 6 to 14 days. The female can lay over 200 to 500 eggs depending on the availability of blood as their food source, because they require blood in order to reproduce. Their mating method is called traumatic insemination where the males insert their penis positioned at the base or the paramere, into a paragenital sinus of the female Bed bugs abdominal and ejects the sperm. The male Bed bugs need to feed prior to mating and the female Bed bugs need to feed before they lay their eggs. It has been studied that as males mate with the female Bed bugs, they also possess a certain homosexual behavior.

They can also store a male Bed bugs sperm for up to 6 weeks. A newly hatched Bed bug will have reddish to purple shade of color. While the nymph will be translucent and would have to molt 5 times within 35 to 48 days, till it becomes a full adult. And thus the cycle repeats itself.

Detection of Bed Bugs

Detecting Bed bugs is a task that requires patience as it takes time and a lot of effort as they only feed when their host is asleep. When you are able to detect the infestation of Bed bugs early, then your problems may not be as complicated as it may seem. In cases of low infestation, Bed bug canines can detect Bed bugs even if they are just a few, or you can opt for sticky traps and other devices that are cheaper than having to use other forms of treatment for large infestations.

Controlling Bed Bugs

Your first option is to always clean up any Bed bugs that are visible. All carpets and furniture and every corner must be vacuumed. After vacuuming, the bag must be sealed in a plastic bag or container and placed in a freezer for a week prior to disposing. Then have all the clothes and bed sheets in hot water and dried at a high setting as well or under the sun.

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Florida Bed Bugs

Florida Bed Bugs Infestation Six-legged parasitic insects are rapidly taking over Florida. Florida bed bugs are found in the mattress of ones bed. They feed on live hosts, meaning human beings, while they sleep. How can one stop this mass infestation of Florida bed bugs?

Appearance of Florida Bed Bugs Florida bed bugs are a light to dark reddish brown with flattened oval torsos. Before a feast the adult bed bug ranges from 1/4 to 5/8 inches in length. After engorging itself the hungry Florida bed bug will nearly double in size. Its swollen body, no longer flattened and oval is elongated and blood-filled having a dull red appearance.

The good news about Florida Bed bugs is that they do not attach themselves to their prey, like ticks do, but rather just before dawn they jump on their warm-blooded host and pierce the skin with an elongated beak containing two tubes: one containing an anesthetic that prevents clotting while causing numbness, and the other is the extraction tube for the breakfast of the Florida bed bugs.

Florida Bed Bug Eating

Florida Bed Bugs are Small

Florida Bed Bug BItes

Prevention of Florida Bed Bugs Since Florida bed bugs like to play hide and seek they are very difficult to conquer. Short of vacating everything in the building and mass chemical fumigation with illegal pesticides, Florida bed bugs take a little time to fully eradicate. It is fortunate that most of Florida has not been invaded by the Tropical bed bug but only by the Common one. Miami has been overwhelmed with both species and Miami bed bugs are leading in the battle on the east coast.

Actions to Take to Prevent Florida Bed Bugs

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