نتایج جستجو برای: acaricides
تعداد نتایج: 694 فیلتر نتایج به سال:
Hyalomma ticks were collected from Merino and black-headed Dorper sheep and their attachment preferences determined. The preferred site of attachment for Hyalomma marginatum rufipes on both Dorper and Merino sheep was the anogenital and inguinal areas (75-76%). On Dorper sheep, H. truncatum attached predominantly to the anogenital and inguinal areas (67.7%). On Merino sheep, most adults of this...
As part of the Northeast Area-wide Tick Control Project (NEATCP), meta-analyses were performed using pooled data on the extent of tick-vector control achieved through seven concurrent studies, conducted within five states, using U.S. Department of Agriculture "4-Poster" devices to deliver targeted-acaricide to white-tailed deer. Although reductions in the abundance of all life-stages of Ixodes ...
BACKGROUND Recent elevated winter loss of honey bee colonies is a major concern. The presence of the mite Varroa destructor in colonies places an important pressure on bee health. V. destructor shortens the lifespan of individual bees, while long lifespan during winter is a primary requirement to survive until the next spring. We investigated in two subsequent years the effects of different lev...
Goal. To test modern aerosol equipment for individual and group treatment of cattle with insect-acaricides in the grazing period, to analyze its technical characteristics. Methods. Information-bibliographic, parasitological, field, analytical. Results. Among devices instruments cattle, mechanical hand-operated sprayers such as “Rosynka” analog “Kvazar” a capacity 0.5 1 l had proved themselves w...
This study compares the prevalence of ixodid tick species on cattle and goats in Maputo Province. Adult ticks as well as the nymphs of three species, and only the adults of two species were collected from sets of five cattle at 21 localities throughout the province and compared with those collected from similar sets of goats at the same places. Amblyomma hebraeum adults and/or nymphs were prese...
The manufacture and use of endosulfan as a broad spectrum contact insecticide and acaricide applied to a wide variety of fruits, vegetables, grains, etc. has led to its direct release into the environment. Technicalgrade endosulfan contains at least 94% of two pure isomers, αand β-endosulfan. The αand β-isomers of endosulfan are present in the ratio of 7:3, respectively. Endosulfan sulfate is a...
Tick control is critical to the control of tick borne disease, while the direct impact of ticks on livestock productivity is also well known. For livestock, tick control today rests overwhelmingly on the twin approaches of genetics and chemical acaricides, although the disadvantages and limitations of both are recognized. The achievement of the full potential of vaccination, the application of ...
Socio-economic factors and environmental considerations have increasingly encouraged the search for methods of tick control other than acaricidal treatment. Biological control management regimes have, so far, not proved to be sound replacements for acaricides. The major natural control methods employed successfully at present are host resistance and pasture management. The former has been exten...
In Experiment 1, five adult female impala were fitted with harnesses that restrained oral self-grooming of the anterior part of the body. At the same time, six cohoused female impala were fitted with control harnesses that allowed normal oral grooming. The impala were allowed to habituate to the harnesses for 10 days, and both groups were then exposed to larval ticks (Boophilus decoloratus) by ...
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