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Journal of Entomology
  Year: 2012 | Volume: 9 | Issue: 6 | Page No.: 343-351
DOI: 10.3923/je.2012.343.351
The Activity of Aspergillus terreus as Entomopathogenic Fungi on Different Stages of Hyalomma anatolicum anatolicum under Experimental Conditions
Elham Abdelbasit Suliman and Yassir Osman Mohammed

Abstract:
Ticks are obligate blood sucking ectoparasites. They are regarded as a major constraint to improve cattle production in sub-Saharan Africa. They are vectors of many kinds of microorganisms than any other single arthropods. Fungi are capable to infect a wide range of living organisms including insects and acaroids. Numerous natural enemies of ticks including pathogens such as fungi were investigated. In the present study, the mould Aspergillus terreus was isolated from Hyalomma anatolicum anatolicum eggs. Spore suspension of A. terreus at different concentrations was tested against different developmental stages of H. a. anatolicum. Assessment of immature stages of H. a. anatolicum seven days post treatment showed that the unfed larval stage was more susceptible than other stages. Spore suspensions at different concentrations, induced no mortalities among unfed and fed females. It was also demonstrated that the treatment affected reproductive capacity of the both unfed and fed females by reducing egg-conversion factor and arresting oviposition. Hatchability of the treated eggs decreased with increasing the contact periods. The findings were assessed and implications on bio-control of ticks using A. terreus were discussed. Accordingly, A. terreus might play a substantial role in future IPM programmes for tick control.
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How to cite this article:

Elham Abdelbasit Suliman and Yassir Osman Mohammed, 2012. The Activity of Aspergillus terreus as Entomopathogenic Fungi on Different Stages of Hyalomma anatolicum anatolicum under Experimental Conditions. Journal of Entomology, 9: 343-351.

DOI: 10.3923/je.2012.343.351

URL: https://scialert.net/abstract/?doi=je.2012.343.351

 
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