Printer Friendly
Dictionary, Encyclopedia and Thesaurus - The Free Dictionary
3,895,671,697 visitors served.
forum Join the Word of the Day Mailing List For webmasters
?
Dictionary/
thesaurus
Medical
dictionary
Legal
dictionary
Financial
dictionary
Acronyms
 
Idioms
Encyclopedia
Wikipedia
encyclopedia
?

Acaricides

   Also found in: Dictionary/thesaurus, Medical, Wikipedia 0.03 sec.
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


Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content.
?Page tools
Printer friendly
Cite / link
Feedback
Mentioned in?  References in periodicals archive?   Encyclopedia browser?   Full browser?
No references found
 
Typical of the organization and thoroughness of each chapter is that on acaricides, which features an introductory section on mites, reasons for the problem, species of economic importance, their control, resistance to chemicals, older acaricides, and two lengthy sections on insecticides and toxicology.
They discuss principles for the proper use of insecticides, acaricides (mite killers), and transgenic crops; major insecticides and acaridices in use today; and insecticidal transgenic crops.
 
 
 
Encyclopedia
?

Terms of Use | Privacy policy | Feedback | Advertise with Us | Copyright © 2012 Farlex, Inc.
Disclaimer
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.