Control Of Lice Research Articles

Malathion Dust for the Control of Lice On Domestic Game Birds

Malathion Dust for the Control of Lice On Domestic Game Birds

Field Studies with Systemic Insecticides against Cattle Grubs and Lice1

In tests involving 270 calves treated orally with single doses of systemic insecticides in bolus form, Dow ET-57 (Trolene) and Dowco-109 (phosphoramidothioic acid, methyl 1-, O -(-4- tert - butyl-2-chlorophenyl) O -methyl ester), gave high kills of Hypoderma lineatum (DeVill.) and H. bovis (L.). Control with both insecticides exceeded 90%. Dow ET-57 appeared to be as effective at a dosage rate of 85 mg./kg. as at 110 mg./kg. Dimethoate ( O,O ,-dimethyl-S- (N-methylcarbamolymethyl) phosphorodithioate), also called Am. Cyanamid 12,880, gave only erratic control at rates of 15 and 10 mg./kg. None of the three insecticides, when given orally, killed 100% of cattle lice, but dimethoate produced higher kills than Dow ET-57 or Dowco-109. When given as feed additives to 160 calves, Dowco-109 at 2.0, 7.5, and 15 mg./kg. fed for 10,2, and 1 day, respectively, and Dow ET-57 at 55 mg./kg. fed for 2 days, caused grub reductions of 61 to 82%. Better results might have been obtained under more normal feeding conditions than prevailed in this test. As a complete coverage spray, Bayer 21/199 (Co-ral) 0.25 and 0.5% (from wettable powder) provided excellent louse control for at least 5 months. Dowco-109 (wettable powder) provided good louse control for a period of from 3 to more than 4 months. Neither Bayer 21/199 nor Dowco-109 gave satisfactory control of grubs under the conditions of these spray tests, although each gave about 80% control in one test at a concentration of 0.5%. It was concluded that Bayer 21/199 might potentially provide “one-shot” grub and lie control on cattle.

Surface applicators for the control of lice and keds on sheep

Summary An account is given of trials using dusts, a high-pressure mist, and a low-pressure spray for the control of lice (Damalinia ovis) and keds (Melophagus ovinus) on sheep, using, principally, dieldrin as the insecticide. Three per cent dieldrin dusts, and sprays containing 0.0625% to 0.2% dieldrin gave satisfactory results, provided that a minimum of 20 mg/kg of active ingredient, distributed over the whole sheep, was deposited.

Lice Control on Northern Range Herds with Residual Sprays1

Lice Control on Northern Range Herds with Residual Sprays1

Louse Control through Textile Fibre Size

The possibility of controlling the human body louse, Pediculus humanus humanus L., through the development of clothing which is inimical to it on physical rather than chemical grounds was investigated. Claw size in lice was shown to be related to diameter of host hair. The grip force of lice on fabrics made of fibres of various diameters and compositions, some spun and some unspun, and of various weaves largely dictated by availability, was measured with an apparatus of which the essential parts were a torsion balance and a kymograph motor. The force was found to be a maximum at fibre-diameters approximating that of human hair. The ability of lice to grab hold of a fabric when dropped on to an inclined surface of it was also measured and found to vary with fibre-diameter in a similar manner to grip, but less strongly. The number of eggs laid on fabrics when no choice was offered was also found to vary with fibre-diameter in a similar manner. While this physical method of louse control is not promising for immediate practical application, it has possibilities which may be enhanced by developments in textile technology.

Limitations of Malathion in Northern Fowl Mite and Louse Control

Many poultrymen have recently become very enthusiastic about the use of malathion in control of lice and mites. A rather extensive field testing program using malathion dust has been recently completed at the University of Georgia Poultry Farm. Results give some indication of its limitations as well as its value. In conducting the Broiler-Breeder Test, 21 entries of adult birds including 36 females and three males were received in September of 1955 from widely dispersed geographic areas of the United States. These entries were placed in 21 houses, each having approximately 155 square feet of floor space and containing wood-shavings for litter. Upon arrival some had a light infestation of lice and mites. The following species were present: the shaft louse, Menopon gallinae (L.), the body louse, Eomenocanthus stramineus (Nitz), the fluff louse, Goniocotes hologaster (Nitz), and the northern fowl mite, Ornithonyssus sylviarum (C. & F.).1By mid-November a heavy …

Chicken Louse and Mite Control with Malathion Formulations1

Chicken Louse and Mite Control with Malathion Formulations1

Cattle Louse Control with Treated Rubbing Devices and Their Distribution in South Carolina1

Journal Article Cattle Louse Control with Treated Rubbing Devices and Their Distribution in South Carolina Get access F. R. Gressette, Jr., F. R. Gressette, Jr. Search for other works by this author on: Oxford Academic PubMed Google Scholar Wm. J. Goodwin Wm. J. Goodwin Search for other works by this author on: Oxford Academic PubMed Google Scholar Journal of Economic Entomology, Volume 49, Issue 2, 1 April 1956, Pages 236–239, https://doi.org/10.1093/jee/49.2.236 Published: 01 April 1956

Tests with Self-Treating Devices for the Control of Lice on Cattle in Mississippi1

Tests with Self-Treating Devices for the Control of Lice on Cattle in Mississippi1

Lice Control on Chickens with Chlorinated Hydrocarbon Insecticides1

Lice Control on Chickens with Chlorinated Hydrocarbon Insecticides1

The Effectiveness and Limitations of Homemade Self Treatment Rubbing Devices for Louse Control on Cattle

Journal Article The Effectiveness and Limitations of Homemade Self Treatment Rubbing Devices for Louse Control on Cattle Get access Robert A. Hoffman Robert A. Hoffman Entomology Research Branch, Agr. Res. Serv., U.S.D.A. Search for other works by this author on: Oxford Academic PubMed Google Scholar Journal of Economic Entomology, Volume 47, Issue 6, 1 December 1954, Pages 1152–1153, https://doi.org/10.1093/jee/47.6.1152 Published: 01 December 1954

Self-Treatment Rubbing Devices for Louse Control on Cattle

Journal Article Self-Treatment Rubbing Devices for Louse Control on Cattle Get access Robert A. Hoffman Robert A. Hoffman U.S.D.A., Agr. Res. Serv., Entomology Research Branch Search for other works by this author on: Oxford Academic PubMed Google Scholar Journal of Economic Entomology, Volume 47, Issue 4, 1 August 1954, Page 701, https://doi.org/10.1093/jee/47.4.701 Published: 01 August 1954

防殺虫燻煙剤の研究 : III. シャツを燻煙した場合の殺虱効果について(第 6 回大会講演要旨)

防殺虫燻煙剤の研究 : III. シャツを燻煙した場合の殺虱効果について(第 6 回大会講演要旨)

Cattle Lice Control by Clipping1

Cattle Lice Control by Clipping1

Control of Lice and Mites

Control of Lice and Mites

虱の驅除に關する研究第 I 報 : 浮浪者より得た肌衣の觀察と虱に對する DDT の効力試験

虱の驅除に關する研究第 I 報 : 浮浪者より得た肌衣の觀察と虱に對する DDT の効力試験

Experiments with ‘Gammexane’ in the Control of Lice on Poultry and their Bearing on the Problem of Vitamin D Intake

RECENTLY, I conducted a series of experiments to determine the tainting effect of ‘Gammexane’ (benzene hexachloride) when used for the control of body lice on poultry. A commercial louse powder containing 5 per cent benzene hexachloride (15 per cent gamma isomer) was used. Dusted on the birds, this gave rapid and prolonged control of louse infestation, and when eggs from these birds were submitted to a panel of tasters they could detect no difference from eggs laid by control hens. Similarly, no taint could be detected in the meat when dusted birds were cooked and eaten. In the most severe test, birds were excessively dusted four times at weekly intervals and killed one week after the final dusting.

Comparative Efficacy of Several Insecticides and Methods of Application in the Control of Lice on Chickens

WITH the advent of World War II and the subsequent scarcity of several standard insecticides, there was increased interest in search of new compounds for insect control. Along with the general insecticide development have come new poultry ectoparasite-killing agents. Standard compounds used in the past have never quite met the multiple requirements of the ideal poultry insecticide. Such a substance should be highly toxic to poultry ectoparasites, non toxic to chickens and man, easy to apply (preferably without handling birds), inexpensive, readily available, and should possess sufficient residual properties so that one application would be adequate for complete control of all poultry ectoparasites. Availability of such a compound or mixture of compounds is one of the greatest needs of the poultry industry today. Chief among the poultry ectoparasites, the world over, are lice and mites. In spite of a need for control of all poultry insect pests, the greatest emphasis .

Efficacy of Certain Sprays in Control of Lice and Mites of Chickens1

Efficacy of Certain Sprays in Control of Lice and Mites of Chickens1

Hexachlorocyclohexane—A Fumigant for the Control of Chicken Lice

THE need for louse control on chickens is universally recognized, but the problem has never had a satisfactory solution. While present control practices are generally effective, they cannot be regarded as altogether practical. The dipping of infested birds in sodium fluoride or other solutions, aside from involving considerable labor, is generally accompanied by a drop in egg production, and not infrequently by the loss of a bird or two. The application of dusts, like dipping, is a laborious procedure, requires the individual handling of birds, and if not performed carefully and cautiously, is detrimental in some degree to chickens.The use of fumigants, since the introduction of nicotine sulphate, is a highly progressive measure. The vapors of fumigants applied to roosts penetrate the feathers of infested birds and thereby destroy the lice. Such products obviate the need to handle the birds individually, and reduce the expenditure of time and labor. .