• List of Articles dispersal

      • Open Access Article

        1 - The conidial dispersion of Beauvaria bassiana in date by larval and adult stages of Sawtoothed Beetle, Oryzaephilus surinamensis
        Masoud Latifian Ebrahim Solimannejadian Mehran Ghazavi
        Beauvaria bassiana (Buls.) Vuill. is one of the Sawtoothed beetle, Oryzaephilus surinamensis (L.), pathogens in date stored condition. The ability of different developmental stages of the beetle to disperse the fungus primary inoculums in three date cultivars Sayer, Zah More
        Beauvaria bassiana (Buls.) Vuill. is one of the Sawtoothed beetle, Oryzaephilus surinamensis (L.), pathogens in date stored condition. The ability of different developmental stages of the beetle to disperse the fungus primary inoculums in three date cultivars Sayer, Zahedi and Deiri were studied. The individual dispersal functions as spore dispersal power and cross infestation rate as spore dispersal rate were calculated. Results showed that there were significant differences in spore dispersal ability by larval and adult stages and in three studied date cultivars. The slope of individual dispersal functions for different developmental stages were negative that indicating the reduction of primary inoculums of pathogen by distance. The rate of primary inoculums transmission was reduced by time also. So, the maximum of dispersal occurred in first days of inoculation. Maximum spore dispersal occurred on Deiri and its amount was similar in Sayer and Zahedi. The adults were more effective on dispersal of primary inoculums on date than the larvae. Conidial dispersion on date wasn't aggressive and the fungi conidia were dispersed on all sites of stored date. Dispersal rate by adults was faster than larvae.  Manuscript profile
      • Open Access Article

        2 - The Broad mite, Polyphagotarsonemus latus (Banks), a résumé of a widely distributed invasive species and plants pest
        R. A. Baker M. Arbabi
        This paper deals with some of the current issuers involving Polyphagotarsonemus latus (Banks), a plant feeding invasive mite which is a destructive pest worldwide. Heavy infestations can cause serious damage to a large number of plant families especially in commercial g More
        This paper deals with some of the current issuers involving Polyphagotarsonemus latus (Banks), a plant feeding invasive mite which is a destructive pest worldwide. Heavy infestations can cause serious damage to a large number of plant families especially in commercial glasshouses. Aspects of the biology will be considered including a brief reference to control measures. Manuscript profile
      • Open Access Article

        3 - Habitat Selection, Density estimation and Feeding Strategy of Crab Plover (Dromas ardeola) in Zohre Estuary Mudflats, Khuzestan Province
        M. Naderi
        For the investigation about prey and predator relationships, Crab plover was selected as a model species in the Zohre river mudflats, Sajafi harbor where is located in thee Mahshahr. During nine months field study from late spring 2014 to the late winter 2015, we tried More
        For the investigation about prey and predator relationships, Crab plover was selected as a model species in the Zohre river mudflats, Sajafi harbor where is located in thee Mahshahr. During nine months field study from late spring 2014 to the late winter 2015, we tried to estimate the species abundance and density as a predator and prey items as well. The most important variables affecting the bird distribution and habitat use also was investigated using logistic regression and paired T test. The main items that affect Crab Plover habitat selection and feeding strategy are Crab’s density, safety (distance to the Sajafi harbor), presence of the competitors and especially limited time of the feeding period which affect optimal foraging. Manuscript profile
      • Open Access Article

        4 - Evaluation of weed biodiversity indices of strawberry fields in Kurdistan province
        Sirwan Babaei Soraya Ahmadi Iraj Tahmasebi Mohammad Sarsaifi
        Strawberry (Fragaria × ananassa) belongs to the Rosaceae family. One of the most critical challenges of strawberry production is the plants that cause problems in harvesting and reduced yield. This study was carried out to identify weed flora in strawberry growing More
        Strawberry (Fragaria × ananassa) belongs to the Rosaceae family. One of the most critical challenges of strawberry production is the plants that cause problems in harvesting and reduced yield. This study was carried out to identify weed flora in strawberry growing regions in Kurdistan province. In this study, determining the genus and species of common weeds in the strawberry fields of two regions was investigated. For this purpose, 13 farms in 6 villages in the Kamyaran region and 11 farms at 11 villages in the Marivan region with the more cultivated area than their surrounding villages were selected. The results of weed flora study in Sanandaj-Kamyaran axis farms showed that the most prevalent weeds in Sanandaj-Kamyaran axis strawberry fields are related to broadleaf weeds including (Convolvulus arvensis L.), (Cirsium arvense), (Acroptilon repens), (Setaria viridis L.), (Allium canadense L.) and (Vicia persica Boiss) with dominance index of 201.5, 200, 193.72, 193.48, 192.24 and 190.64 respectively. The first three weeds were perennial weeds, and the last one was an annual weed. However, among the narrow-leaves annual weeds, (Setaria viridis) had the highest prevalence index (193.48) due to traditional irrigation using rivers and streams, which carry weed seeds in their path. However, in the Marivan region, all species had a high prevalence index, although Portulaca oleracea L. and Cynodon dactylon L. had a higher dominance index than the others. Manuscript profile