Acaricides


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Acaricides

 

chemical agents used to combat mites. Most effective against the herbivorous mites are the organophos-phorus insecticides (metaphos, methylnitrophos, trichlor-metaphos, and others) and, in particular, the so-called systemic insecticides (phosphamidon, methylmercaptophos, octamethyl pyrophosphoramide, and others), which make it possible to protect the plants for a protracted period. Also effective as acaricides are aromatic alcohols, esters of acids, sulfides, sulfones, azobenzene, nitrophenols, and certain organic compounds of fluorine, as well as sulfur preparations (in a ground form, as colloidal preparations, or in the form of calcium or barium polysulfides obtained by dissolving sulfur in lime; such a solution is known as lime-sulfur spray). Organophosphorus and organochlorine insecticides, carbamates, and others are used for combating ixodoid ticks.

Some acaricides are given in Table 1.

REFERENCES

Berim, N. G. Khimicheskaia zashchita rastenii. Leningrad, 1966.
Mel’nikov, N. N. Khimiia pestitsidov. Moscow, 1968.

N. N. MEL’NIKOV

Table 1
NameFormulaMelting temperature(°c)Dos (kglha)
1 Boiling point at absolute pressure of 8 newtons per square meter (0.06 mm of mercury)
Kelthane ...............................Table 178.5–790.2–0.6
Milbex .................................Table 1123.5–124: 69.5–700.5–1.0
Tedion (tetradichlon) ....................Table 1146.5–147.50.7–1.5
Chlorbenside (chlorparacide) .............Table 1720.2–0.6
Chlorobenzilate .........................Table 1141–1420.2–0.8
Chlorophenylchlorobenzenesulfonate (Ovotran) ............................Table 186.50.5–1.0
References in periodicals archive ?
Acaricides are a class of pesticides, which are used in the agricultural sector to restrict the attack of arachnid on the agricultural produce.
Many health and environmental concerns have arisen regarding toxicity related problems and the growing incidences of tick resistance to available and recommended acaricides. Furthermore, tick infestation is not tolerated by herd owners, hence they might exceed the recommended dose of acaricides to achieve the highest tick mortality.
Organophosphate insecticides and acaricides antagonise bifenazate toxicity through esterase inhibition in Tetranychus urticae.
The variables of climate, altitude, latitude, season, farm type, hygiene, vectors, use of acaricide, distance from other farms, farm density, race, age, sex and milk yield were recorded for each animal.
In vitro evaluation of the effects of some acaricides on life stages of Rhipicephalus sanguineus (Acari: Ixodidae).
annulata was low with repeated usage of acaricides in tick abundance period these findings are in line with (Hungerford, 1990) who also stated that repeated and scheduled acaricides applications can protect animals from tick infestation.
limonum (a), P nigrum (b), the combination of both oils (c), and positive control were the commercial acaricides Deltamethrin and Amitraz.
This paper reviews the potential role and contribution of ethno knowledge on ectoparasite control with a special focus on ethnobotanical acaricides in integrated tick control and management programmes.
The Laboratory experiment to study the relative toxicity of acaricides and botanical was carried out in the Acarology Laboratory, Department of Entomology and Agricultural Zoology, Institute of Agricultural sciences, Banaras Hindu University, Varanasi in year 2013-15.
Community-based programs for the control of Rhpicephalus-associated RMSF using long-acting tick collars on dogs and environmental acaricides (pesticides targeting ticks) have been found to be effective in reducing tick populations in homes and on dogs and in human disease cases (4).