Primary Screwworm Cochliomyia hominivorax (Coquerel) (Insecta: Diptera: Calliphoridae)

Cochliomyia hominivorax

In October of 2016, the United States Department of Agriculture confirmed that the primary screwworm, also called the New World screwworm, has returned to Florida. The fly was found infesting Key deer on Big Pine Key. Key deer are an endangered species found only on the Florida Keys, and unfortunately several have died from the 2016 screwworm infestations, but the screwworm is not only a problem for deer and other wildlife. The pest poses a serious threat to all warm-blooded animals, including livestock, pets, and people, and it cost the US livestock industry billions of dollars before it was finally eradicated decades ago. This four-page fact sheet provides more information about this dangerous pest and how to spot it, as well as what to do and whom to contact if you suspect an infestation in your livestock or pets or in a wild animal. Written by Phillip E. Kaufman, Samantha M. Wisely, and Jennifer L. Gillett-Kaufman and published by the Entomology and Nematology Department.

If you suspect an infestation of screwworms in an animal, do not move the animal (to prevent spreading the infestation). Call 1-800-HELP-FLA (1-800-435-7352) inside Florida. Non-Florida residents should call (850) 410-3800.
http://edis.ifas.ufl.edu/in1146

A Sand Fly Lutzomyia longipalpis (Lutz and Neiva) (Insecta: Diptera: Psychodidae: Phlebotominae)

Figure 1. Adult (A) female and (B) male Lutzomyia longipalpis (Lutz and Neiva), a sand fly. Credit: Cristina Ferro, Instituto Nacional de Salud, ColombiaThe true sand flies are densely covered with setae, have long slender legs, and broad and pointed wings that are held erect at rest. Several phlebotomine species are vectors of the protozoan parasites in the genus Leishmania, that are the causal agents of leishmaniasis. Visceral leishmaniais is the most severe form of the disease, and is fatal to the human or dog host if untreated. This 6-page fact sheet was written by Maria C. Carrasquilla and Phillip E. Kaufman, and published by the UF Department of Entomology and Nematology, June 2015. (Photo credit: Cristina Ferro, Instituto Nacional de Salud, Colombia
http://edis.ifas.ufl.edu/in1091

Australian cockroach Periplaneta australasiae Fabricius (Insecta: Blattodea: Blattidae)

Figure 1.  Dorsal view of an adult Australian cockroach, Periplaneta australasiae Fabricius.

Australian cockroaches are the most common outdoor cockroach in southern Florida. Though they typically stay outdoors, Australian cockroaches may also venture inside and live among humans. This 4-page fact sheet covers the Australian cockroach’s distribution and habitat, biology, medical risks to humans, and management as a pest. Written by Shiyao Jiang and Phillip E. Kaufman, and published by the UF Department of Entomology and Nematology, April 2015.
http://edis.ifas.ufl.edu/in1088

Gulf Coast Tick, Amblyomma maculatum Koch (Acari: Ixodidae: Amblyomminae)

Figure 1. Adult male (left) and female (right) Gulf Coast ticks, Amblyomma maculatum Koch.Gulf Coast ticks are found in grass prairies and coastal uplands throughout much of the western hemisphere. The ticks are ectoparasites that feed on a variety of birds and mammals, and will readily bite humans. Gulf Coast ticks are of increasing concern because of their ability to transmit several pathogens of veterinary and medical importance. This 7-page fact sheet was written by Jeffrey C. Hertz and Phillip E. Kaufman, and published by the UF Department of Entomology and Nematology, October 2014. (Photo: Jeffrey C. Hertz, edited by Jane Medley)
http://edis.ifas.ufl.edu/in1062

African malaria mosquito Anopheles gambiae Giles (Insecta: Diptera: Culicidae)

Figure 1.  Female Anopheles gambiae Giles taking a blood meal.Anopheles gambiae Giles is commonly called the African malaria mosquito because it is the most efficient vector of human malaria in the Afrotropical Region. They are considered to be one of the world’s most important human malaria vectors because of their susceptibility to the Plasmodium parasite, their preference for humans as a host, and their indoor-feeding behavior. Due to their short development time and their preference for developmental habitats near human dwellings, Anopheles gambiae are considered effective vectors of human malaria, as well as lymphatic filariasis (elephantiasis). This 6-page fact sheet was written by Sabrina A. White and Phillip E. Kaufman, and published by the UF Department of Entomology and Nematology, September 2014.
http://edis.ifas.ufl.edu/in1048

Southern black widow Latrodectus mactans (Fabricius) (Arachnida: Araneae: Theridiidae)

Figure 1.  Adult female Southern black widow, Latrodectus mactans (Fabricius).The Southern black widow spider, Latrodectus mactans (Fabricius), is a venomous spider found throughout the southeastern United States. Widow spiders received their name from the belief that they would kill and consume their mate following copulation. However, the practice was mainly observed in laboratory settings under crowded conditions. It is believed that sexual cannibalism within the widow species in natural settings is more associated with the male’s physical inability to escape rather than the female’s interest in consuming him. This 6-page fact sheet was written by Amanda Eiden and Phil E. Kaufman, and published by the UF Department of Entomology and Nematology, May 2013.
http://edis.ifas.ufl.edu/in1000

Rainbow scarab Phaneaus vindex Macleay (Insecta: Coleoptera: Scarabaeidae)

Figure 1. Red-green male Phanaeus vindex. Credit: Paul SkelleyRainbow scarabs are members of the beetle family Scarabaeidae, which along with the family Geotrupidae, are commonly known as dung beetles. Scarab beetles were the objects of worship in Ancient Egypt and the more spectacular varieties are made into jewelry. The genus Phanaeus MacLeay is distributed primarily in Neotropical habitats with 100 species, but also in the Neartic region with nine species and the West Indies with one. Dung beetles serve an important role in pasture ecosystems, which has resulted in their introduction around the world. The rainbow scarab has a bright exterior of metallic green, blue, and red interspersed with golden reflections. This 5-page fact sheet was written by Thomson Paris, Barukh Rohde, and Philip E. Kaufman, and published by the UF Department of Entomology and Nematology, July 2013.
http://edis.ifas.ufl.edu/in1003

Cattle Grub Management (ENY290/IN979)

Cattle gadding in response to the presence of warble flies.Immature warble flies, or cattle grubs, infest and harm livestock throughout the world. Warble flies also are known as “heel flies” because they cause cattle to kick at themselves, and “gad flies” because they cause cattle to “gad about” in an attempt to evade the flies. Two species of cattle grubs occur in the U.S.A., the common cattle grub, and the northern cattle grub. This 6-page fact sheet was written by P. E. Kaufman and E. N. I. Weeks, and published by the UF Department of Entomology and Nematology, March 2013.
http://edis.ifas.ufl.edu/in979

Forced-Use Dust Bags for Management of External Parasites (ENY281/IG135)

Figure 1. Forced-use dust bags positioned correctly to ensure self-application of cattle when visiting the water trough. Dust bags are an effective method of horn fly and louse control. However, dust bags are only effective when hung in places where cattle are forced to use them. The best locations are areas where cattle must pass once or twice a day, or every other day, for instance between mineral boxes or water and pasture. During the field tests, forced-use dust bags provided an average of 90% horn fly control. Production was increased by an average of 34% over the normal management practice. This increase in production was equivalent to 1/3 lb/animal/day. This 5-page fact sheet was written by P. E. Kaufman and E. N. I. Weeks, and published by the UF Department of Entomology and Nematology, November 2012.
http://edis.ifas.ufl.edu/ig135

A mosquito Psorophora ciliata (Fabricius) (Insecta: Diptera: Culicidae) (EENY540/IN967)

Figure 3. An adult female Psorophora ciliata showing relative size.Psorophora ciliata (Fabricius) is a large mosquito that has developed an outsized reputation because of its relatively intimidating heft and persistent biting behavior, including anecdotal historical accounts of its legendary aggressiveness and ‘frightening appearance’. This 6-page fact sheet was written by Ephraim V. Ragasa and Phillip E. Kaufman, and published by the UF Department of Entomology and Nematology, October 2012.
http://edis.ifas.ufl.edu/in967

Pesticide Safety Around Animals (ENY272/IG128)

FAMU researcher examines Boer goatIn general, infested animals are unhealthy and cannot be managed efficiently, so pesticides are commonly used to protect animals from pests. The successful control of pests requires careful mixing and application of recommended pesticides according to label directions. Besides ensuring the control of pests, applying pesticides at the recommended rate is necessary to prevent injury to the animal. This 5-page fact sheet was written by P. E. Kaufman and E. N. I. Weeks, and published by the UF Department of Entomology and Nematology, October 2012.
http://edis.ifas.ufl.edu/ig128

Mange in Companion Animals (ENY289/IN953)

Figure 2. Sarcoptic mange in a dog.Mange is a persistent skin condition of mammals caused by infestation with parasitic mites. Mites are tiny arthropods, usually less than 1 mm in length and difficult to see with the naked eye. Adult mites have eight legs, and larvae have six. The effect of the mites on the animal’s skin, called “mange,” is the most visible sign of an infestation. This 6-page fact sheet describes several skin conditions commonly caused by parasitic mites in domestic animals. Written by E. N. I. Weeks and P. E. Kaufman, and published by the UF Department of Entomology and Nematology, September 2012.
http://edis.ifas.ufl.edu/in953

Horn Fly Management (ENY288/IN952)

Figure 1. Adult Horn fly. Horn flies are one of the livestock pests with the greatest impact on the health and productivity of cattle. Economic losses due to horn fly damage are estimated at $36 million annually in Florida alone. In the U.S.A. annual losses total between $700 million and $1 billion, with up to $60 million spent on insecticidal control. Horn fly damage is caused by blood feeding. The flies feed frequently and exclusively on blood, piercing the skin of cattle with their proboscis and taking around 20 small blood meals each day. Pain and irritation due to the constant presence of the flies and their bites causes defensive behavior in the cattle that prevents adequate food consumption and rest. This 4-page fact sheet was written by P. E. Kaufman and E. N. I. Weeks, and published by the UF Department of Entomology and Nematology, September 2012.
http://edis.ifas.ufl.edu/in952

Self-Treatment Methods for Livestock–Backrubbers (ENY279/IG134)

Figure 1. Backrubbers correctly positioned in high traffic areas.Back rubbers are a method of pesticide self-treatment for cattle. When bothered by insects or other pests, cattle tend to rub against objects. Backrubbers provide a rubbing surface that is treated with a pesticide. Cattle self-treat during rubbing, which reduces the number of flies, particularly horn flies, and parasites such as lice, on the animal. Backrubbers may be purchased commercially or constructed from easily available materials. A properly designed backrubber that supplies pesticide reliably to the animal can be a valuable addition to an integrated pest management program. This 4-page fact sheet was written by E. N. I. Weeks and P. E. Kaufman, and published by the UF Department of Entomology and Nematology, September 2012.
http://edis.ifas.ufl.edu/ig134

Stable Fly (Dog Fly) Control (ENY267/IG133)

Figure 1. Stable fly.The stable fly is a blood-sucking filth fly of considerable importance to people, pets, livestock, and the tourist industry in Florida. Filth flies, including stable flies, exploit habitats and food sources created by human activities, such as farming. Stable flies primarily attack animals for a blood meal, but in the absence of an animal host, they will bite people. This 4-page fact sheet was written by P. E. Kaufman and E. N. I. Weeks, and published by the UF Department of Entomology and Nematology, August 2012.
http://edis.ifas.ufl.edu/ig133

Common Green Bottle Fly Sheep Blow Fly Luciia sericata (Meigen) (Insecta: Diptera: Calliphoridae) (EENY502/IN903)

Figure 2.  Dorsal view of the common green bottle fly, Lucilia sericata (Meigen).The common green bottle fly is a common visitor to carrion, feces, and garbage. Like many of the other blow flies, it plays an important role in forensic, medical and veterinary science. Larvae or maggots help forensic scientists to determine the period of insect colonization as it relates to the time of death, aiding law enforcement in their investigations. Medical treatment using maggot therapy can help to heal infections that are otherwise incurable. Learn more in this 5-page fact sheet written by Matthew Anderson and Phillip E. Kaufman, and published by the UF Department of Entomology and Nematology, October 2011.
http://edis.ifas.ufl.edu/in903

A Flesh Fly Sarcophaga crassipalpis Macquart (Insecta: Diptera: Sarcophagidae) (EENY503/IN905)

Figure 1.  Anterior lateral view of an Sarcophaga crassipalpis Macquart, a flesh fly.Sarcophaga crassipalpis is commonly used in laboratories to study gene expression, diapause processes, and physiological processes. It also has a significant impact in other areas of science including parasitology and forensic entomology. This 6-page fact sheet was written by Lazaro A. Diaz and Phillip E. Kaufman, and published by the UF Department of Entomology and Nematology, October 2011.
http://edis.ifas.ufl.edu/in905

Eye Gnats, Grass Flies, Eye Flies, Fruit Flies Liohippelates spp. (Insecta: Diptera: Chloropidae) (EENY485/IN884)

High concentrations of eye gnats are common in areas that have loose sandy soils, especially in the southern United States, and are a great nuisance to humans and animals in rural towns as well as agricultural, recreational, and tourist areas. While they do not bite, they can transmit several diseases to humans and livestock, including human acute conjunctivitis (pink eye). This 6-page fact sheet focuses broadly on two species that are common in the southeastern region of the United States are L. pusio and L. bishoppi (Sabrosky). Written by Erika Machtinger and Phillip E. Kaufman and published by the UF Department of Entomology and Nematology, April 2011.
http://edis.ifas.ufl.edu/in884

Horn Fly Haematobia irritans irritans (Linnaeus) (Insecta: Diptera: Muscidae) (EENY490/IN885)

The horn fly is one of the most economically important pests of cattle worldwide. Just in the United States, hundreds of millions of dollars in losses are attributed to the horn fly annually, while additional millions are spent annually on insecticides to reduce horn fly numbers. Learn more about this pernicious obligate blood-feeding ectoparasite in this 7-page fact sheet, written by Dan Fitzpatrick and Phillip E. Kaufman, and published by the UF Department of Entomology and Nematology, April 2011.
http://edis.ifas.ufl.edu/in885

External Parasites on Beef Cattle (ENY274/IG130)

External parasites such as lice, flies, ticks, cattle grubs and mites are a serious problem to livestock breeders. These pests are most prevalent during spring and summer months; however, Florida's warm climate permits many pests to live year-round.
This revised 13-page fact sheet was written by P. E. Kaufman, P. G. Koehler and J. F. Butler, and published by the UF Department of Entomology and Nematology, April 2011.
http://edis.ifas.ufl.edu/ig130