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  Journal of Entomological and Acarological Research
  [1 followers]  Follow
    
  This is an Open Access Journal Open Access journal
   ISSN (Print) 2038-324X - ISSN (Online) 2279-7084
   Published by PAGEPress Homepage  [64 journals]
  • The Mediterranean fruit fly (Ceratitis capitata) in Iran: genetic
           diversity and comparison with other countries

    • Authors: M. Rajabiyan, M. Shayanmehr, M. Mohammadi Sharif
      Pages: 20 - 25
      Abstract: The Mediterranean fruit fly, Ceratitis capitata (Wiedemann) is an economically important pest on fruits all over the world. The origin of this fly is thought to be from Africa, but it has recently expanded its distribution in many geographic regions including Iran. Due to the wide spread of this pest in Iran and its serious damage to fruit on trees, including citrus orchards of northern Iran, the present study was conducted firstly to investigate genetic diversity within populations of C. capitata based on the sequences of three mitochondrial DNA (mtDNA) genes including cytochrome C oxidase I (COI), NAHD dehydrogenase subunits 4 and 5 (ND4 and ND5) and secondly to compare the Iranian haplotypes with those found in other countries. Results of this study indicated low levels of genetic diversity (four, four and three haplotypes among different populations of this pest, respectively for the COI, ND4 and ND5 genes) in northern Iranian populations. The genetic similarity and very low levels of genetic diversity of northern Iranian populations suggest that the pest colonisation occurred relatively recently. In addition, haplotypes of Mazandaran province are similar to haplotypes of those countries that have recently been infected by this pest.
      PubDate: 2015-04-23
      Issue No: Vol. 47, No. 1 (2015)
       
  • Biodiversity of insects associated with safflower (Carthamus tinctorius)
           crop in Gachsaran, Iran

    • Authors: K. Saeidi, S. Mirfakhraei, F. Mehrkhou, O. Valizadegan
      Pages: 26 - 30
      Abstract: The present research conducted to see the biodiversity of insects in warm and cool areas from March to April in 2009 at the Gachsaran Agricultural Research Station. A total number of 4261 specimens, which were identified into 31 families and 92 species. Out of total 31 families collected, 10 families were pests, 2 families belongs to predators and beneficial insects and 7 families belongs to parasitoids and beneficial insects and finally, 12 families of insects are saprophage and polyphagous. There was no significant difference (P>0.05) in the number of insects collected between months. The mean number of insects collected in the month of March, April and May was 34.7, 30.7 and 36.2 respectively. The Basht area is most susceptible host for insects (37.9), while the Gachsaran and Lishter areas is less susceptible (33.5) and (28.4) so both sites not differ significantly in the population of insects. The family Coccinellidae had more population in the Gachsaran-safflower zone (98.3) than the Basht-safflower zone (54.6) and it was significantly similar to the family cicadellidae. Similarly, different families like Aphididae (98.0), Cicadellidae (74), Thripidae (50.0), Curculionidae (26.6), Noctuidae (25.0) and Torymidae (27.3) had higher population in the Gachsaran-safflower zone than in the Basht-safflower area with means of 92.3, 63.0, 42.6, 21.0, 21.6 and 19.3 respectively. Also the families like Nymphalide, Pieridae, Lygaeidae, Papilionidae, Miridae, Pentatomidae, Reduviidae, Geometridae, Gryllotalpidae, Mantidae, Acrididae, Saturnidae and Anthocoridae had mean population of 12.6, 7.4, 12.0, 4.1, 4.4, 8.6, 1.9, 0.5, 7.5, 2.4, 11.3, 3.3 and 8.9.
      PubDate: 2015-04-23
      Issue No: Vol. 47, No. 1 (2015)
       
  • Bioefficacy of Morinda tinctoria and Pongamia glabra plant extracts
           against the malaria vector Anopheles stephensi (Diptera: Culicidae)

    • Authors: D. Amerasan, K. Murugan, C. Panneerselvam, N. Kanagaraju, K. Kovendan, P. Mahesh Kumar
      Pages: 31 - 40
      Abstract: Mosquito-borne diseases have an economic impact, including loss in commercial and labour outputs, particularly in countries with tropical and subtropical climates; however, no part of the world is free from vector-borne diseases. The aim of the present study was to investigate the larvicidal, adulticidal and ovicidal activity of dried leaf chloroform, ethyl acetate, acetone, aqueous, and methanol extracts of Morinda tinctoria and Pongamia glabra against larvae of Anopheles stephensi (Diptera: Culicidae). Larvae were exposed to varying concentrations of plant extracts for 24 h. All extracts showed moderate larvicidal effects after 24 h of exposure; however, the highest larval mortality was found with the leaf methanol extracts of M. tinctoria and P. glabra against the larvae of A. stephensi lethal concentration (LC)50=136.24 and 141.05 ppm; LC90=342.67 and 368.89 ppm, respectively. The results of the adulticidal activity assays of chloroform, ethyl acetate, acetone, aqueous, and methanol extracts of M. tinctoria and P. glabra showed significant mortality against larvae of A. stephensi. The methanol extract showed maximum activity compared with the other extracts. The greatest effect on mean percentage hatch in the ovicidal assays was observed 48 h post-treatment. Percent hatch was inversely proportional to the concentration of extract, and directly proportional to the number of eggs. A mortality of 100% was observed with 100-400 ppm methanol extracts and 200-400 ppm aqueous extracts of M. tinctoria, and 200-400 ppm aqueous and methanol extracts of P. glabra. This study provides the first report of the larvicidal, adulticidal and ovicidal activities of M. tinctoria and P. glabra plant extracts against the malaria vector, A. stephensi, representing an ideal eco-friendly approach for its control.
      PubDate: 2015-04-23
      Issue No: Vol. 47, No. 1 (2015)
       
  • Orgya antiqua (Linnaeus) (Lepidoptera: Lymantriidae): an occasional pest
           on Pelargonium

    • Authors: G. Viggiani
      Pages: 41 - 42
      Abstract: The larval development of Orgya antiqua on Pelargonium has been reported for the first time.
      PubDate: 2015-04-23
      Issue No: Vol. 47, No. 1 (2015)
       
 
 
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