| impacts of human-related practices on ommatissus lybicus infestations of date palm in oman. | date palm cultivation is economically important in the sultanate of oman, with significant financial investments coming from both the government and private individuals. however, a widespread dubas bug (db) (ommatissus lybicus bergevin) infestation has impacted regions including the middle east, north africa, southeast russia, and spain, resulting in widespread damages to date palms. in this study, techniques in spatial statistics including ordinary least squares (ols), geographically weighted r ... | 0 | 28166300 |
| variation in bacterial endosymbionts associated with the date palm hopper, ommatissus lybicus populations. | the date palm hopper, ommatissus lybicus, is a key pest of the date palm, which is expected to be comprised of many allopatric populations. the current study was carried out to determine bacterial endosymbiont diversity in the different populations of this pest. ten date palm hopper populations were collected from the main date palm growing regions in iran and an additional four samples from pakistan, oman, egypt and tunisia for detection of primary and secondary endosymbionts using polymerase c ... | 2017 | 28807085 |
| impact of environmental variables on dubas bug infestation rate: a case study from the sultanate of oman. | date palm cultivation is economically important in the sultanate of oman, with significant financial investment coming from both the government and from private individuals. however, a global infestation of dubas bug (ommatissus lybicus bergevin) has impacted the middle east region, and infestations of date palms have been widespread. in this study, spatial analysis and geostatistical techniques were used to model the spatial distribution of dubas bug infestations to (a) identify correlations be ... | 2017 | 28558069 |
| remote sensing and spatial statistical techniques for modelling ommatissus lybicus (hemiptera: tropiduchidae) habitat and population densities. | in order to understand the distribution and prevalence of ommatissus lybicus (hemiptera: tropiduchidae) as well as analyse their current biographical patterns and predict their future spread, comprehensive and detailed information on the environmental, climatic, and agricultural practices are essential. the spatial analytical techniques such as remote sensing and spatial statistics tools, can help detect and model spatial links and correlations between the presence, absence and density of o. lyb ... | 2017 | 28875085 |
| effect of deltamethrin on the gills of aphanius dispar: a microscopic study. | aphanius dispar, a freshwater fish (mean total length±sd, 3.42±0.33 cm) was exposed to different concentrations of deltamethrin (2.25, 2.50 and 3.00 μg l(-1)), an insecticide used to control dubas bug, ommatissus lybicus in oman. the histopathological changes in the structure of the gills in fish exposed to deltamethrin was studied using light, transmission and scanning electron microscopy. in light microscopy, the fish exposed to 2.25 μg l(-1) deltamethrin, showed hypertrophy and hyperplasia of ... | 2012 | 21996553 |