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External Parasites of Sheep and Goats1

P. G. Koehler and J. F. Butler2

Arthropod pests limit production in the sheep and goat industry in many ways. External parasites feed on body tissue such as blood, skin, and hair. The wounds and skin irritation produced by these parasites result in discomfort and irritation to the animal. Parasites can transmit diseases from sick to healthy animals. They can reduce weight gains and milk production. In general, infested livestock cannot be efficiently managed to realize optimum production levels.

Lice

Lice are external parasites which spend their entire lives on the sheep or goat. Both immature and adult stages suck the blood or feed on the skin. Goat lice are host specific and only attack goats and their close relatives such as sheep.

Lice-infested animals may be recognized by their dull, matted coat or excessive scratching and grooming behavior. Sucking lice pierce the host's skin and draw blood. Biting lice have chewing mouthparts and feed on particles of hair, scab and skin exudations. The irritation from louse-feeding causes animals to rub and scratch, causing raw areas on the skin or loss of hair. Weight loss may occur as a result of nervousness and improper nutrition. Milk production is reduced about 25 percent. Also, the host is often listless and in severe cases the loss of blood to sucking lice can lead to anemia.

Lice are generally transmitted from one animal to another by contact. Transmission from herd to herd is usually accomplished by transportation of infested animals, although some lice may move from place to place by clinging to flies (phoresy). Lice are most often introduced to herds by bringing in infested animals.

Louse populations vary seasonally, depending largely on the condition of the host. Most sucking and biting lice begin to increase in number during the fall and reach peak populations in late winter or early spring. Summer populations are usually minimal, causing no obvious symptoms. Animals under stress will usually support larger louse populations than normally found.

Control of louse infestations is needed whenever an animal scratches and rubs to excess. Louse control is difficult since pesticides do not kill the louse egg. Since eggs of most species will hatch 8 to 12 days after pesticide application, retreatment is necessary 2 weeks after the first pesticide application.

There are 4 kinds of biting lice and 5 kinds of sucking lice that can attack sheep and goats in Florida.

Biting Lice

The angora goat biting louse, Bovicola limbata and Holokartikos crassipes are the two major biting lice species. The goat biting louse ( Figure 1 ) and the sheep biting louse are of lesser significance.

CREDITS: J. F. Butler, University of Florida

Figure 1. Goat biting louse life cycle.
All four species live on the skin surface feeding on scales, bits of hair and other skin surface debris. Egg hatch requires 9 to 12 days, and the entire life cycle averages 1 month. The biting lice of goats are world-side in distribution with winter-time populations being most severe. In Florida high populations have been seen year round.

The best control of biting lice is an animal residual spray. Retreatment is recommended 2 weeks after the first pesticide application.

Sucking Lice

Five species of sucking lice attack sheep and goats. The following are of importance:

  1. African blue louse - Found in semi-tropical climates in the United States, India and Puerto Rico. They are found on the body, head, and neck. Heavy populations have caused the death of the host.

  2. Foot louse - This louse prefers the feet and legs of goats and sheep. Populations peak in the spring and at that time the lice may affect the belly area as well. Scrotum infestations on bucks are common. Lambs seem to have the highest infestations. Egg hatch for this species of louse takes longer than the other species. Therefore, retreatment should be applied after 3 weeks.

  3. Goat sucking louse - Populations ( Figure 2 ) are dispersed over the animal's body. It is also found on sheep.

  4. The face and body louse and the long-nosed cattle louse - These are minor pests.

Figure 2. Goat sucking louse life cycle.

Nose Bot Fly

The nose bot fly ( Figure 3 ) infests the nostrils of sheep and goats. In infested animals, there is a discharge from the nostrils, biforous shaking of the head, loss of appetite and grating of the teeth. In the presence of the fly, the animals are excited, shake their heads, snort and rush with their noses in the dust.

Figure 3. Nose bot flies.
Nose bot flies are a winter-time problem. Up to 25 bots have been found in the nasal passages of sheep in Florida. They may cause eye damage in man. The larvae of the fly are laid in the nostrils. They migrate up the nasal passages and feed on mucous and mucous membranes. No control is available.

Keds

Keds ( Figure 4 ) (Hippoboscidae), also known as louse flies, are large, flattened, usually wingless parasitic flies. Two species feed on goats, but one reproduces on deer and feeds on goats. Sheep ked bites cause irritation and prompt the infested animals to rub, bite, and scratch. They may also roll on the ground in an attempt to relieve irritation.

CREDITS: J. F. Butler, University of Florida

Figure 4. Ked.
Keds usually do not cause great damage if the animal is fed on a highly nutritious diet, but goats grazed throughout the year on pasture or range may acquire heavy burdens of keds during winter and early spring.

Eggs are retained and hatch within the body of the female ked and develop into fully grown larvae ready to pupate. These larvae are then glued to hairs of the host. A female ked is capable of developing only one larvae at a time. During the female's life of 100 to 130 days, she produces around 10 to 15 young, giving birth every 8 to 9 days. The pupal stage lasts from 18 to 30 days.

Infestations of Fly Maggots

Fly maggots, (Myiasis), is the presence of fly larvae in the host. Several kinds of maggots infest the wounds of warm-blooded animals; however, the only one that feeds exclusively on live flesh is the primary screwworm. Sterile male releases have irradiated the primary screwworm fly from the Southeast; but there is constant danger of reinfestation.

Other species such as the secondary screwworm and other blow flies may also infest wounds. These species normally lay their eggs on carcasses of dead animals and may occasionally occur in open wounds. Although these species may cause worry, they will not consume living flesh and will feed primarily on dead flesh and wound secretions. Infestations of secondary screwworm often follows injury which produce prevalent wounds or management practices which allow animals to develop bacterial skin infestations. These problems must be cleared up to prevent secondary screwworm infestation.

There is no simple way to differentiate between primary screwworm and other fly larvae. Any suspected screwworm case should be reported to the county extension director. Samples of eggs and maggots should be saved in a small container filled with 70% alcohol solutions.

Mites

Itch or mange mites ( Figure 5 ) (Psoroptes, Sarcoptes) feed on the surface or burrow within the skin, making very slender, winding tunnels from 0.1 to 1 inch long. The fluid discharged at the tunnel openings dries to form nodules. A toxin is also secreted which causes intense irritation and itching. Infested animals rub and scratch continuously. Infestations are contagious and treatment of all animals in a herd is essential to achieve control. Delayed egg hatch requires retreatment at 10 days.

CREDITS: J. F. Butler, University of Florida

Figure 5. Itch mite.
The most common mange of sheep and goats is Psoroptic ear mite (Psoroptes caniculi) or scab mite. It lives in the auditory canal and temporarily on the body.

Sticktight Fleas (Siphonaptera)

Fleas are small, wingless insects varying from 1.0 to 8.5 mm in length. They are narrow insects compressed on the sides with spines directed backwards.

Most species move about a great deal and remain on the host only part of the time to obtain a blood meal. The legs are well developed as they can jump as far as 7 to 8 inches.

The flea has egg, larva, pupa, and adult stages. Under favorable conditions, a generation can be completed in as little as 2 to 3 weeks. Mating takes place on the host and eggs are laid on the host. Since they are not attached, the eggs drop to the ground and hatch in from 2 days to several weeks. Development occurs most commonly in the bedding of the resting area of the host.

The larvae ( Figure 6 ) are very small worm-like, legless insects with chewing mouthparts. In several weeks they go through 3 larval stages, feeding on organic debris. The pupal stage lasts approximately one week, then the newly emerged flea is ready to feed on blood within 24 hours.

CREDITS: J. F. Butler, University of Florida

Figure 6. Flea life cycle.
The sticktight flea ( Figure 7 ), the most common flea, is a small species which attacks sheep, goats and other domestic animals. It attaches firmly to its host usually about the face and ears. This species remains attached to its host for as long as 2 to 3 weeks. During this time eggs are laid. They drop to the ground and hatch into larvae. Large populations of this flea may cause ulcers on the head and ears. Flea infestations often spread to other animals including man.

CREDITS: J. F. Butler, University of Florida

Figure 7. Sticktight flea.

External Parasite Control Recommendations for Dairy Goats

Very few pesticides are registered for control of parasites on dairy goats. Read all warnings, directions, and precautions carefully to insure proper usage.

Keys to Pesticide Safety

  1. Before using any pesticide, stop and read the precautions.

  2. Read the label on each pesticide container before each use. Heed all warnings and precautions.

  3. Store all pesticides in their original container away from food or feed.

  4. Keep pesticides out of the reach of children, pets, and livestock.

  5. Apply pesticides only as directed.

  6. Dispose of empty containers promptly and safely.

These recommendations are guidelines only. The user must insure that the pesticide is applied in strict compliance with label directions.

The Food and Drug Administration has established residue tolerances for certain insecticides in the meat and milk of certain animals. When these and other approved insecticides are applied according to recommendations, the pests should be effectively controlled and the animals' products will be safe for use as food.

The improper use of insecticides may result in residue in milk or meat. Such products must not be delivered to processing plants.

To avoid excessive residues, use the insecticides recommended at the time recommended and in the amounts recommended. Remember that goats are smaller animals than cattle and require proportionately less pesticide for adequate treatment. Be careful not to over treat animals. Spray with enough pressure to penetrate the hair coat and wet the skin. Less than 1 quart of spray should be enough to produce complete coverage per animal.

Tables

Table 1. Summary of Sheep Insecticide Registrations.

Insecticide

Formulation

% Active Ingredient

Signal Word

Pests

Permethrin


Atroban 11% EC Insecticide
Emulsifiable Concentrate
11.0%

black flies, eye gnats, horn flies, horse flies, house flies, lice, mange mites, mosquitoes, scabies mites, sheep keds, stable flies, ticks
Atroban 42.5% EC
Emulsifiable Concentrate
42.5%
Danger
horn flies, horse flies, house flies, lice, mites, mosquitoes, stable flies, ticks
Atroban Delice Pour-On Insecticide
Pour-On
1.0%

keds, lice
Boss Pour-On Insecticide
Pour-On
5.00%

keds, lice
Catron IV
Aerosol
0.5%
Caution
deer flies, horn flies, horse flies, house flies, gnats, stable flies, ear ticks, screwworms, fleece worms
GardStar 40% EC
Emulsifiable Concentrate
40.0%
Danger
black flies, deer flies, eye gnats, horn flies, horse flies, house flies, lice, mange mites, mosquitoes, scabies mites, sheep keds, stable flies, ticks
Permectrin
pour-On
1.0%
Caution
horn flies, keds, lice
Permectrin CDS
Pour-On
7.4%
Caution
keds, lice
Permectrin II
Emulsifiable Concentrate
10.0%
Caution
blow flies, fleas, hog lice, mange mites, mosquitoes, ticks
Ultra Boss Pour-On
Pour-On
5.0%
Caution
keds, lice
Permethrin (synergized)


Synergized Delice Pour-On Insecticide
Pour-On
1.0%

keds, lice
Zeta-cypermethrin


Python Dust
Dust
0.075%
Caution
horn flies, keds, lice, ticks

Table 2. Registered Insecticides for Specific Sheep Pests.

Insecticide

Formulation

Re-Treatment Interval

Comments from Label

Black Flies

Atroban 11% EC Insecticide (permethrin)
Emulsifiable Concentrate
2 weeks


Mix thoroughly according to label directions.


GardStar 40% EC (permethrin)


Emulsifiable Concentrate


10-14 days


Dilute and apply according to label directions. May be used as a high pressure spray, low pressure spray (hand-pump sprayer), or backrubber.


Blow Flies

Permectrin II

(permethrin)


Emulsifiable Concentrate


2 weeks
Spray or dip animals.

Deer Flies

Catron IV (permethrin)
Aerosol

Spray according to label directions.


GardStar 40% EC (permethrin)


Emulsifiable Concentrate


10-14 days


Dilute and apply according to label directions. May be used as a high pressure spray, low pressure spray (hand-pump sprayer), or backrubber.


Eye Gnats

Atroban 11% EC Insecticide (permethrin)


Emulsifiable Concentrate


2 weeks


Mix thoroughly according to label directions.


Catron IV (permethrin)


Aerosol



Spray according to label directions.


GardStar 40% EC (permethrin)


Emulsifiable Concentrate


10-14 days


Dilute and apply according to label directions. May be used as a high pressure spray, low pressure spray (hand-pump sprayer), or backrubber.


Fleece Worms

Catron IV (permethrin)


Aerosol



Spray according to label directions.


Horn Flies

Atroban 11% EC Insecticide (permethrin)


Emulsifiable Concentrate


2 weeks


Mix thoroughly according to label directions.


Atroban 42.5% EC (permethrin)


Emulsifiable Concentrate
10 to 14 days


Apply diluted product, according to label directions as a dip or spray.


Catron IV (permethrin)
Aerosol

Spray according to label directions.


GardStar 40% EC (permethrin)


Emulsifiable Concentrate


10-14 days


Dilute and apply according to label directions. May be used as a high pressure spray, low pressure spray (hand-pump sprayer), or backrubber.


Permectrin (permethrin)


Pour-On
As needed, but not more than once every two weeks.


Pour along back line and down face.


Python Dust (zeta-cypermethrin)


Dust

Can be applied by dust bag, shaker can, dusting glove and mechanical dust applicator.


Horse Flies

Atroban 11% EC Insecticide (permethrin)


Emulsifiable Concentrate


2 weeks


Mix thoroughly according to label directions.


Atroban 42.5% EC (permethrin)


Emulsifiable Concentrate


10 to 14 days


Apply diluted product, according to label directions as a dip or spray.


Catron IV (permethrin)


Aerosol



Spray according to label directions.


GardStar 40% EC (permethrin)


Emulsifiable Concentrate


10-14 days


Dilute and apply according to label directions. May be used as a high pressure spray, low pressure spray (hand-pump sprayer), or backrubber.


House Flies

Atroban 11% EC Insecticide (permethrin)


Emulsifiable Concentrate


2 weeks


Apply diluted product, according to label directions as a dip or spray.


Atroban 42.5% EC (permethrin)


Emulsifiable Concentrate
10 to 14 days


Apply diluted product, according to label directions as a dip or spray.


Catron IV (permethrin)


Aerosol



Spray according to label directions.


GardStar 40% EC (permethrin)


Emulsifiable Concentrate


10-14 days


Dilute and apply according to label directions. May be used as a high pressure spray, low pressure spray (hand-pump sprayer), or backrubber.


Keds

Atroban 11% EC Insecticide (permethrin)


Emulsifiable Concentrate


2 weeks


Apply diluted product, according to label directions as a dip or spray.


Atroban Delice Pour-On Insecticide (permethrin)


Pour-On


2 weeks


No dilution necessary. Apply according to label directions.


Boss Pour-On Insecticide (permethrin)
Pour-On
2 weeks
Pour proper amount along back.
GardStar 40% EC (permethrin)


Emulsifiable Concentrate


10-14 days


Dilute and apply according to label directions. May be used as a high pressure spray, low pressure spray (hand-pump sprayer), or backrubber.


Permectrin (permethrin)


Pour-On
As needed, but not more than once every two weeks.


Pour along back line, over neck, shoulders, and rump.


Permectrin CDS (permethrin)


Pour-On

Pour along back. For optimum control, all animals in flock should be treated after shearing.


Python Dust (zeta-cypermethrin)


Dust

Can be applied by dust bag, shaker can, dusting glove and mechanical dust applicator.


Synergized Delice Pour-On Insecticide

(permethrin -synergized)


Pour-On
14 days
Pour along back. For optimum control, all animals in flock should be treated after shearing.


Ultra Boss Pour-On (permethrin)


Pour-On
2 weeks
Pour along back.

Lice

Atroban 11% EC Insecticide (permethrin)


Emulsifiable Concentrate


2 weeks


Apply diluted product, according to label directions as a dip or spray.


Atroban Delice Pour-On Insecticide (permethrin)


Pour-On


2 weeks


No dilution necessary. Apply according to label directions.


Boss Pour-On Insecticide (permethrin)
Pour-On


2 weeks
Pour proper amount along back. For optimum lice control, two treatments at 14 day intervals are recommended.
GardStar 40% EC (permethrin)


Emulsifiable Concentrate


10-14 days


Dilute and apply according to label directions. May be used as a high pressure spray, low pressure spray (hand-pump sprayer), or backrubber.


Permectrin (permethrin)


Pour-On
As needed, but not more than once every two weeks.


Pour along back line and down face.


Permectrin CDS (permethrin)


Pour-On

Pour along back. For optimum control, all animals in flock should be treated after shearing.


Permectrin II

(permethrin)


Emulsifiable Concentrate


2 weeks
Spray or dip animals.
Python Dust (zeta-cypermethrin)


Dust



Can be applied by dust bag, shaker can, dusting glove and mechanical dust applicator.


Synergized Delice Pour-On Insecticide

(permethrin - synergized)


Pour-On
14 days
Pour along back. For optimum control, all animals in flock should be treated after shearing.


Ultra Boss Pour-On (permethrin)


Pour-On
2 weeks
Pour along back. For optimum lice control, two treatments at 14-day intervals are recommended.

Mites (Mange)

Atroban 11% EC Insecticide (permethrin)


Emulsifiable Concentrate


2 weeks


Apply diluted product, according to label directions as a dip or spray.


Atroban 42.5% EC (permethrin)


Emulsifiable Concentrate


10 to 14 days


Apply diluted product, according to label directions as a dip or spray.


GardStar 40% EC (permethrin)


Emulsifiable Concentrate


10-14 days


Dilute and apply according to label directions. May be used as a high pressure spray, low pressure spray (hand-pump sprayer), or backrubber.


Permectrin II

(permethrin)


Emulsifiable Concentrate


2 weeks
Spray or dip animals.

Mites (Scabies)

Atroban 11% EC Insecticide (permethrin)


Emulsifiable Concentrate


2 weeks


Apply diluted product, according to label directions as a dip or spray.


Atroban 42.5% EC (permethrin)


Emulsifiable Concentrate


10 to 14 days


Apply diluted product, according to label directions as a dip or spray.


GardStar 40% EC (permethrin)


Emulsifiable Concentrate


10-14 days


Dilute and apply according to label directions. May be used as a high pressure spray, low pressure spray (hand-pump sprayer), or backrubber.


Mosquitoes

Atroban 11% EC Insecticide (permethrin)


Emulsifiable Concentrate


2 weeks


Apply diluted product, according to label directions as a dip or spray.


Atroban 42.5% EC (permethrin)


Emulsifiable Concentrate


10 to 14 days


Apply diluted product, according to label directions as a dip or spray.


GardStar 40% EC (permethrin)


Emulsifiable Concentrate


10-14 days


Dilute and apply according to label directions. May be used as a high pressure spray, low pressure spray (hand-pump sprayer), or backrubber.


Permectrin II

(permethrin)


Emulsifiable Concentrate


2 weeks
Spray or dip animals.

Stable Flies

Atroban 11% EC Insecticide (permethrin)


Emulsifiable Concentrate


2 weeks


Apply diluted product, according to label directions as a dip or spray.


Atroban 42.5% EC (permethrin)


Emulsifiable Concentrate


10 to 14 days


Apply diluted product, according to label directions as a dip or spray.


Catron IV (permethrin)
Aerosol



Spray according to label directions.


GardStar 40% EC (permethrin)


Emulsifiable Concentrate


10-14 days


Dilute and apply according to label directions. May be used as a high pressure spray, low pressure spray (hand-pump sprayer), or backrubber.


Ticks

Atroban 11% EC Insecticide (permethrin)


Emulsifiable Concentrate


2 weeks


Apply diluted product, according to label directions as a dip or spray.


Atroban 42.5% EC (permethrin)


Emulsifiable Concentrate


10 to 14 days


Apply diluted product, according to label directions as a dip or spray.


Catron IV (permethrin)


Aerosol



Spray according to label directions.


GardStar 40% EC (permethrin)


Emulsifiable Concentrate


10-14 days


Dilute and apply according to label directions. May be used as a high pressure spray, low pressure spray (hand-pump sprayer), or backrubber.


Permectrin II

(permethrin)


Emulsifiable Concentrate


2 weeks
Spray or dip animals.
Python Dust (zeta-cypermethrin)


Dust

Can be applied by dust bag, shaker can, dusting glove and mechanical dust applicator.


Ticks (Ear)

Catron IV (permethrin)


Aerosol



Spray according to label directions.


Table 3. Summary of Goat Insecticide Registrations.

Insecticide

Formulation

% Active Ingredient

Signal Word

Pests

Permethrin


Atroban 11% EC Insecticide
Emulsifiable Concentrate
11.0%

black flies, eye gnats, horn flies, horse flies, house flies, lice, mange mites, mosquitoes, scabies mites, sheep keds, stable flies, ticks
Catron IV
Aerosol
0.5%
Caution
deer flies, fleece worms, horn flies, horse flies, house flies, gnats, stable flies, ear ticks, screwworms
GardStar 40% EC
Emulsifiable Concentrate
40.0%
Danger
black flies, deer flies, eye gnats, horn flies, horse flies, house flies, lice, mange mites, mosquitoes, scabies mites, sheep keds, stable flies, ticks
Zeta-cypermethrin


Python Dust
Dust
0.075%
Caution
horn flies, keds, lice, ticks

Table 4. Registered Insecticides for Specific Goat (lactating and non-lactating) Pests.

Insecticide

Formulation

Re-Treatment Interval

Comments from Label

Black Flies

Atroban 11% EC Insecticide (permethrin)


Emulsifiable Concentrate
2 weeks


Mix thoroughly according to label directions.


GardStar 40% EC (permethrin)
Emulsifiable Concentrate


10-14 days


Dilute and apply according to label directions. May be used as a high pressure spray, low pressure spray (hand-pump sprayer), or backrubber.


Deer Flies

Catron IV (permethrin)
Aerosol

Spray according to label directions.


GardStar 40% EC (permethrin)


Emulsifiable Concentrate


10-14 days


Dilute and apply according to label directions. May be used as a high pressure spray, low pressure spray (hand-pump sprayer), or backrubber.


Eye Gnats

Atroban 11% EC Insecticide (permethrin)


Emulsifiable Concentrate


2 weeks


Mix thoroughly according to label directions.


Catron IV (permethrin)
Aerosol

Spray according to label directions.
GardStar 40% EC (permethrin)


Emulsifiable Concentrate


10-14 days


Dilute and apply according to label directions. May be used as a high pressure spray, low pressure spray (hand-pump sprayer), or backrubber.


Fleece Worms

Catron IV (permethrin)


Aerosol



Spray according to label directions.


Horn Flies

Atroban 11% EC Insecticide (permethrin)


Emulsifiable Concentrate


2 weeks


Mix thoroughly according to label directions.


Catron IV (permethrin)
Aerosol

Spray according to label directions.


GardStar 40% EC (permethrin)


Emulsifiable Concentrate


10-14 days


Dilute and apply according to label directions. May be used as a high pressure spray, low pressure spray (hand-pump sprayer), or backrubber.


Python Dust (zeta-cypermethrin)


Dust

Can be applied by dust bag, shaker can, dusting glove and mechanical dust applicator.


Horse Flies

Atroban 11% EC Insecticide (permethrin)


Emulsifiable Concentrate


2 weeks


Mix thoroughly according to label directions.


Catron IV (permethrin)


Aerosol



Spray according to label directions.


GardStar 40% EC (permethrin)


Emulsifiable Concentrate


10-14 days


Dilute and apply according to label directions. May be used as a high pressure spray, low pressure spray (hand-pump sprayer), or backrubber.


House Flies

Atroban 11% EC Insecticide (permethrin)


Emulsifiable Concentrate


2 weeks


Apply diluted product, according to label directions as a dip or spray.


Catron IV (permethrin)


Aerosol



Spray according to label directions.


GardStar 40% EC (permethrin)


Emulsifiable Concentrate


10-14 days


Dilute and apply according to label directions. May be used as a high pressure spray, low pressure spray (hand-pump sprayer), or backrubber.


Keds

Atroban 11% EC Insecticide (permethrin)


Emulsifiable Concentrate


2 weeks


Apply diluted product, according to label directions as a dip or spray.


GardStar 40% EC (permethrin)


Emulsifiable Concentrate


10-14 days


Dilute and apply according to label directions. May be used as a high pressure spray, low pressure spray (hand-pump sprayer), or backrubber.


Python Dust (zeta-cypermethrin)
Dust

Can be applied by dust bag, shaker can, dusting glove and mechanical dust applicator.


Lice

Atroban 11% EC Insecticide (permethrin)


Emulsifiable Concentrate


2 weeks


Apply diluted product, according to label directions as a dip or spray.


GardStar 40% EC (permethrin)
Emulsifiable Concentrate


10-14 days


Dilute and apply according to label directions. May be used as a high pressure spray, low pressure spray (hand-pump sprayer), or backrubber.


Python Dust (zeta-cypermethrin)


Dust



Can be applied by dust bag, shaker can, dusting glove and mechanical dust applicator.


Mites (Mange)

Atroban 11% EC Insecticide (permethrin)


Emulsifiable Concentrate


2 weeks


Apply diluted product, according to label directions as a dip or spray.


GardStar 40% EC (permethrin)


Emulsifiable Concentrate


10-14 days


Dilute and apply according to label directions. May be used as a high pressure spray, low pressure spray (hand-pump sprayer), or backrubber.


Mites (Scabies)

Atroban 11% EC Insecticide (permethrin)


Emulsifiable Concentrate


2 weeks


Apply diluted product, according to label directions as a dip or spray.


GardStar 40% EC (permethrin)


Emulsifiable Concentrate


10-14 days


Dilute and apply according to label directions. May be used as a high pressure spray, low pressure spray (hand-pump sprayer), or backrubber.


Mosquitoes

Atroban 11% EC Insecticide (permethrin)


Emulsifiable Concentrate


2 weeks


Apply diluted product, according to label directions as a dip or spray.


GardStar 40% EC (permethrin)


Emulsifiable Concentrate


10-14 days


Dilute and apply according to label directions. May be used as a high pressure spray, low pressure spray (hand-pump sprayer), or backrubber.


Stable Flies

Atroban 11% EC Insecticide (permethrin)


Emulsifiable Concentrate


2 weeks


Apply diluted product, according to label directions as a dip or spray.


Catron IV (permethrin)
Aerosol



Spray according to label directions.


GardStar 40% EC (permethrin)


Emulsifiable Concentrate


10-14 days


Dilute and apply according to label directions. May be used as a high pressure spray, low pressure spray (hand-pump sprayer), or backrubber.


Ticks

Atroban 11% EC Insecticide (permethrin)


Emulsifiable Concentrate


2 weeks


Apply diluted product, according to label directions as a dip or spray.


Catron IV (permethrin)


Aerosol



Spray according to label directions.


GardStar 40% EC (permethrin)


Emulsifiable Concentrate


10-14 days


Dilute and apply according to label directions. May be used as a high pressure spray, low pressure spray (hand-pump sprayer), or backrubber.


Python Dust (zeta-cypermethrin)


Dust

Can be applied by dust bag, shaker can, dusting glove and mechanical dust applicator.


Ticks (Ear)

Catron IV (permethrin)


Aerosol



Spray according to label directions.



Footnotes

1. This document is ENY-273 (which incorporates ENY-253), one of a series of the Entomology and Nematology Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Publication date: July 1993. Revised: October 2002. Please visit the EDIS Website at http://edis.ifas.ufl.edu.

2. P. G. Koehler, professor/extension entomologist and J. F. Butler, professor, Entomology and Nematology Department, Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, 32611.


The use of trade names in this publication is solely for the purpose of providing specific information. UF/IFAS does not guarantee or warranty the products named, and references to them in this publication does not signify our approval to the exclusion of other products of suitable composition. All chemicals should be used in accordance with directions on the manufacturer's label. Use pesticides safely. Read and follow directions on the manufacturer's label.


The Institute of Food and Agricultural Sciences is an equal opportunity/affirmative action employer authorized to provide research, educational information and other services only to individuals and institutions that function without regard to race color, sex, age, handicap, or national origin. For information on obtaining other extension publications, contact your county Cooperative Extension Service office.

Florida Cooperative Extension Service / Institute of Food and Agricultural Sciences / University of Florida / Christine Taylor Waddill, Dean



Copyright Information

This document is copyrighted by the University of Florida, Institute of Food and Agricultural Sciences (UF/IFAS) for the people of the State of Florida. UF/IFAS retains all rights under all conventions, but permits free reproduction by all agents and offices of the Cooperative Extension Service and the people of the State of Florida. Permission is granted to others to use these materials in part or in full for educational purposes, provided that full credit is given to the UF/IFAS, citing the publication, its source, and date of publication.


 

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