scholarly journals A Review on Non-target Toxicity of Deltamethrin and Piperonyl Butoxide: Synergist

2021 ◽  
pp. 85-89
Author(s):  
Mrinmoy Basak ◽  
Rejwan Ahmed Choudhury ◽  
Priyanka Goswami ◽  
Biplab Kumar Dey ◽  
Moksood Ahmed Laskar
Keyword(s):  
Risk Assessment ◽  
Synergistic Effect ◽  
Honey Bees ◽  
Piperonyl Butoxide ◽  
Synthetic Pyrethroids ◽  
Toxic Risk ◽  
Toxicological Profile ◽  
Histopathological Studies ◽  
Insight Into ◽  
Beneficial Organisms

Deltamethrin and piperonyl butoxide two synthetic pyrethroids, when used in a combination it produces synergistic effect. This two insecticide has found to be widely used in the management of mosquito, housefly and other insects to control the various vector born diseases. In this review we assessed the toxic effect of deltamethrin and piperonyl butoxide on beneficial organisms commonly available in the ecosystem. It was found to be toxic to fish, honey bees the prime pollinators of crop plant; earthworm is also susceptible at a lethal concentration for a particular exposure. As far the birds are concerned, they have a less toxic risk in lower concentration of exposure. The alterations obtained in the hematological, biochemical and histopathological studies, further conclude that it can cause environment hazards and toxic to the non-targeted organisms. This investigation gives an insight into the combined toxicological profile of deltamethrin and PBO for better risk assessment and safe use of pyrethroids and their synergist in non-targeted organisms.

scholarly journals Gamblers’ Perception of the Playscan Risk Assessment: A Mixed-Methods Study

2021 ◽  
Author(s):  
David Forsström ◽  
Alexander Rozental ◽  
Emma Wiklund ◽  
Per Carlbring ◽  
Philip Lindner
Keyword(s):  
Risk Assessment ◽  
Mixed Methods ◽  
Structural Equation ◽  
Responsible Gambling ◽  
Gambling Behavior ◽  
Mixed Methods Study ◽  
Equation Modeling ◽  
General View ◽  
Insight Into ◽  
Qualitative Analyses

AbstractResponsible gambling (RG) tools are globally widespread; they aim to prevent or decrease the harm caused by gambling. However, existing research suggests that several included features do not decrease gambling or significantly reduce the subsequent harm. Most of the previous studies have used gambling data to understand the changes in gambling behavior. However, the literature lacks research regarding gamblers’ experience and perception of RG tools, which may provide insight into increasing the usage and effectiveness of RG tools. This mixed-methods study aimed to explore gamblers’ perception of their risk assessment in the RG tool Playscan regarding developing harmful gambling problems. Overall, 757 participants rated the perceived accuracy of their risk assessment and their perception of the overall RG tool that conducted the assessment. Participants were also allowed to leave a comment providing feedback, which was analyzed using thematic analysis. Quantitative data was analyzed using logistic regression and structural equation modeling. Qualitative analyses revealed that most of the participants were pleased with the risk assessment and found it helpful. Moderated mediation analysis showed that participants’ assessment agreement partially mediated the association between expressing a negative view and their general view of Playscan. These results highlight the need to decrease the level of disagreement for promoting a better general view of RG tools to potentially increase their usage and effectiveness.

scholarly journals Contaminant organisms recorded on plant product imports to South Africa 1994–2019

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Davina L. Saccaggi ◽  
Melanie Arendse ◽  
John R. U. Wilson ◽  
John S. Terblanche
Keyword(s):  
South Africa ◽  
Risk Assessment ◽  
International Trade ◽  
South African ◽  
Plant Products ◽  
Important Resource ◽  
Plant Product ◽  
Insight Into ◽  
Multiple Contaminants ◽  
Propagation Material

AbstractBiosecurity interception records are crucial data underlying efforts to predict and manage pest and pathogen introductions. Here we present a dataset containing information on imported plant products inspected by the South African Department of Agriculture’s laboratories between 1994 and 2019 and the contaminant organisms found on them. Samples were received from border inspectors as either propagation material (e.g. plants) or material for immediate use (e.g. fruit). Material for immediate use was further divided into two sample categories, depending on if contaminants were seen/suspected by the border official or not: intervention or audit samples. The final dataset consists of 25,279 records, of which 30% tested positive (i.e. had at least one contaminant) and 13% had multiple contaminants. Of the 13,731 recorded contaminants, fungi (41%), mites (37%) and insects (19%) were most common. This dataset provides insight into the suite of taxa transported along the plant import pathway and provides an important resource for analyses of contaminant organisms in international trade, which can inform strategies for risk assessment, pathway management and biosecurity protocols.

scholarly journals Pesticide residues in daily bee pollen samples (April–July) from an intensive agricultural region in Southern Germany

2021 ◽  
Author(s):  
Carolin Friedle ◽  
Klaus Wallner ◽  
Peter Rosenkranz ◽  
Dieter Martens ◽  
Walter Vetter
Keyword(s):  
Honey Bees ◽  
Pesticide Residues ◽  
Hazard Quotient ◽  
Agricultural Landscapes ◽  
Pesticide Analysis ◽  
Analysis Method ◽  
Southern Germany ◽  
Serial Data ◽  
Fruit Growing ◽  
Insight Into

AbstractInsect-pollinated plants are essential for honey bees to feed their brood. In agricultural landscapes, honey bees and other pollinators are often exposed to pesticides used for cultivation. In order to gain more insight into the fluctuation of pesticide loads, 102 daily pollen samples were collected between April and July 2018 in a fruit-growing area in Southern Germany. Samples were analyzed with respect to more than 260 pesticides using a multi-residue pesticide analysis method. Almost 90% of the analyzed pollen samples featured between one and thirteen different pesticides. In total, 29 pesticides were detected at maximum concentrations of up to 4500 ng/g pollen. Maximum residual concentrations of most pesticides were observed during April and the first half of May, as well as during the second half of June. In most cases, serial data of pesticide residuals were detected for approximately 10 subsequent days with two or three maximum values, which were several folds higher than concentrations on the days before and thereafter. The pollen hazard quotient (PHQ) was calculated to estimate the risk of the detected pesticides to honey bees and wild pollinators.

scholarly journals Probabilistic assessment of nectar requirements for nectar-foraging honey bees

Apidologie ◽  
2019 ◽  
Vol 51 (2) ◽  
pp. 180-200 ◽  
Author(s):  
Sara Rodney ◽  
Vincent J. Kramer
Keyword(s):  
Honey Bee ◽  
Honey Bees ◽  
Dietary Exposure ◽  
Food Storage ◽  
Regulatory Agencies ◽  
American Government ◽  
The North ◽  
Dietary Requirements ◽  
Bee Colonies ◽  
Insight Into

AbstractRecent concerns regarding potential effects of pesticides on pollinators have prompted regulatory agencies to estimate dietary ingestion rates for honey bees (Apis mellifera). The task is difficult because of the complex caste and food storage systems in honey bee colonies. Considerable data on the nutrition and energetics of honey bees have recently been collated. These data were used to parameterize a probabilistic model estimating nectar requirements of nectar foragers. Median estimates were more than 6× lower than the recommended median value from the North American government agencies, of 292 mg nectar/bee/day. The distribution of estimates had much greater variability than those of the agencies. The differences are due primarily to the disparate assumptions regarding how much time nectar foragers spend flying and foraging. Risk assessors considering honey bee dietary exposure should take account of current and emerging data providing insight into nectar forager dietary requirements, foraging activity, and feeding behavior.

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