Dynastid Beetle Pests

Bedford, G. O.; Al-Deeb, Mohammad Ali; Khalaf, Mohammed Zaidan; Mohammadpour, K; Soltani, Rasmi

doi:10.1007/978-3-319-24397-9_5

Cited by 10 publications

(4 citation statements)

References 24 publications

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“…The results showed that a temperature of 27.5°C appeared to be the optimal temperature for the biological activities of this [ 25 ]. At 35°C, the biological processes of the pest are disrupted, thus leading to high mortality, particularly in females [ 6 , 26 ].…”

Section: Introductionmentioning

confidence: 99%

Impact of environmental variables on Dubas bug infestation rate: A case study from the Sultanate of Oman

et al. 2017

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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 between Dubas bug densities and different environmental variables, and (b) predict the locations of future Dubas bug infestations in Oman. Firstly, we considered individual environmental variables and their correlations with infestation locations. Then, we applied more complex predictive models and regression analysis techniques to investigate the combinations of environmental factors most conducive to the survival and spread of the Dubas bug. Environmental variables including elevation, geology, and distance to drainage pathways were found to significantly affect Dubas bug infestations. In contrast, aspect and hillshade did not significantly impact on Dubas bug infestations. Understanding their distribution and therefore applying targeted controls on their spread is important for effective mapping, control and management (e.g., resource allocation) of Dubas bug infestations.

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Section: Introductionmentioning

confidence: 99%

Impact of environmental variables on Dubas bug infestation rate: A case study from the Sultanate of Oman

et al. 2017

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“…The results showed that a temperature of 27.5 °C appeared to be the optimal temperature for the biological activities of this species ( Al-Khatri, 2011 ). At 35 °C, the biological processes of the pest are disrupted, thus leading to high mortality, particularly in females ( Bagheri et al, 2016 ; Bedford et al, 2015 ).…”

Section: Introductionmentioning

confidence: 99%

Remote sensing and spatial statistical techniques for modellingOmmatissus lybicus(Hemiptera: Tropiduchidae) habitat and population densities

Al‐Kindi

Kwan

Andrew

et al. 2017

PeerJ

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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. lybicus in response to climatic, environmental, and human factors. The main objective of this paper is to review remote sensing and relevant analytical techniques that can be applied in mapping and modelling the habitat and population density of O. lybicus. An exhaustive search of related literature revealed that there are very limited studies linking location-based infestation levels of pests like the O. lybicus with climatic, environmental, and human practice related variables. This review also highlights the accumulated knowledge and addresses the gaps in this area of research. Furthermore, it makes recommendations for future studies, and gives suggestions on monitoring and surveillance methods in designing both local and regional level integrated pest management strategies of palm tree and other affected cultivated crops.

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“…Another study, suggested that between 25–27.5 °C is more suitable for the biological activity of DB nymphs in Oman . In contrast, at 35 °C, the biological processes of the pest are disrupted, thus leading to high mortality, particularly in females . However, all the above studies were carried out in the lab, whereas our studies were conducted in the field, spatially and temporary on a large scale.…”

Section: Discussionmentioning

confidence: 91%

Modelling the potential effects of climate factors on Dubas bug (Ommatissus lybicus) presence/absence and its infestation rate: A case study from Oman

Kindi

Kwan

Andrew

et al. 2019

Pest Management Science

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BACKGROUND: Ommatissus lybicus de Bergevin (Hemiptera: Tropiduchidae) (Dubas Bug, DB) is an insect pest attacking date palms. It occurs in Arab countries including Oman. In this paper, the logistic, ordinary least square, and geographical weighted regressions were applied to model the absence/presence and density of DB against climate factors. A method is proposed for modelling spatially correlated prorations annually over the study period, based on annual and seasonal outbreaks. The historical 2006-2015 climate data were obtained from weather stations located in nine governorates in northern Oman, while dataloggers collected the 2017 microclimate data in eight of these nine governorates.RESULTS: Logistic regression model showed the percentages of correctly predicted values using a cut-off point of 0.5 were 90%, 88% and 84%, indicating good classification accuracy. OLS and GWR models showed an overall trend of strong linear correlation between DB infestation levels and short-and long-term climate factors. The three models suggested that precipitation, elevation, temperature, humidity, wind direction and wind speed are important in influencing the spatial distribution and the presence/absence of dense DB populations. CONCLUSION:The results provide an improved understanding of climate factors that impact DB's spread and is considered useful for managing DB infestations in date palm plantations.

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Dynastid Beetle Pests

Cited by 10 publications

References 24 publications

Impact of environmental variables on Dubas bug infestation rate: A case study from the Sultanate of Oman

Impact of environmental variables on Dubas bug infestation rate: A case study from the Sultanate of Oman

Remote sensing and spatial statistical techniques for modellingOmmatissus lybicus(Hemiptera: Tropiduchidae) habitat and population densities

Modelling the potential effects of climate factors on Dubas bug (Ommatissus lybicus) presence/absence and its infestation rate: A case study from Oman

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