الفهرس 
INTRODUCTION
Collection of Argas persicusOnly 14 pages are availabe for public view
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Abstract
SUMMARY
Poultry production exists as an industry because poultry and eggs are prized as human food. The fowl ticks are capable of transmitting highly pathogenic microorganisms (viral, bacterial and parasitic) to birds leading to high losses to the intensive production.
in the present study trials for isolation of N.D.V. from A.persicus were performed the virus persisted in the tick for q weeks, this may give attention to the role played by ticks in the epidemiology of Newcastle disease in infected areas.
It is to be noted tht the N.D.V. was not isolated from the eggs and larvae of infected ticks.
The efficiency of certain acaricids as sevin, diazinon, coopex, ficam and Bacdip wre tested by the tube dipping and spray, for evaluation of the best one and best dilutions used for controlling of fowl ticks.
Diazinon proved to be of low acricidal effect where different concen trations gave mortalities of ticks not exceeding 10%. Sevin gave also disappointing results, where mortalities from 10 to 0% were noticed in treated ticks.
Ficam was used for the first time for controlling o A.pçsicus and gave tick mortalities 50 - 85% in different concentration by the tube dipping and 30 - 75% by the spray method.
Bacdip was the best acaricide tht gave 90% mortality rate by the tube dipping, while 95% in the spray method.
Its field application gave 80% mortality in the dilution 15 ml/q L. water.
Coopex also gae good results illustrated in 9% tick mortality at dilution 15 gm/I L. by the tube dipping and 90% by the spray method. Fie’d application of this acaricide gave 74.4% tick mortality.