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https://www.readbyqxmd.com/read/28444605/recent-trends-of-modern-bacterial-insecticides-for-pest-control-practice-in-integrated-crop-management-system
#1
REVIEW
Pritam Chattopadhyay, Goutam Banerjee, Sayantan Mukherjee
Food security and safety are the major concern in ever expanding human population on the planet earth. Each and every year insect pests cause a serious damage in agricultural field that cost billions of dollars annually to farmers. The loss in term of productivity and high cost of chemical pesticides enhance the production cost. Irrespective use of chemical pesticides (such as Benzene hexachloride, Endosulfan, Aldicarb, and Fenobucarb) in agricultural field raised several types of environmental issues. Furthermore, continuous use of chemical pesticides creates a selective pressure which helps in emerging of resistance pest...
May 2017: 3 Biotech
https://www.readbyqxmd.com/read/28444324/fitness-trade-off-associated-with-spinosad-resistance-in-frankliniella-occidentalis-thysanoptera-thripidae
#2
Xiaoyu Li, Yanran Wan, Guangdi Yuan, Sabir Hussain, Baoyun Xu, Wen Xie, Shaoli Wang, Youjun Zhang, Qingjun Wu
Frankliniella occidentalis (Pergande) is an economically important pest of agricultural crops. High resistance has been detected in field populations of F. occidentalis against the insecticide spinosad. In this study, we compared life history traits, body sizes, and feeding behaviors (recorded via an electrical penetration graph) of spinosad-susceptible (Ivf03) and spinosad-resistant (NIL-R) near-isogenic lines of F. occidentalis. Life table analysis showed that NIL-R had reduced female longevity and reduced fecundity...
April 24, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28444217/direct-and-indirect-effects-of-pesticides-on-the-insidious-flower-bug-hemiptera-anthocoridae-under-laboratory-conditions
#3
Nathan J Herrick, Raymond A Cloyd
Greenhouse producers are interested in integrating natural enemies along with pesticides to suppress western flower thrips, Frankliniella occidentalis (Pergande), populations. The insidious flower bug, Orius insidiosus (Say), is a commercially available natural enemy of western flower thrips. We conducted a series of laboratory experiments to determine the direct and indirect effects of 28 pesticides (insecticides, miticides, and fungicides), 4 pesticide mixtures, and 4 surfactants (36 total treatments plus a water control) on the adult O...
April 21, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28443843/atmospheric-pressure-soft-ionization-for-gas-chromatography-with-dielectric-barrier-discharge-ionization-mass-spectrometry-gc-dbdi-ms
#4
Mario F Mirabelli, Jan-Christoph Wolf, Renato Zenobi
In this study, a gas chromatography (GC) system was interfaced to a high-resolution Orbitrap mass spectrometer by means of an active capillary plasma ionization source, based on dielectric barrier discharge ionization (DBDI). This allowed highly efficient soft ionization of gas-phase, chromatographically resolved compounds at ambient pressure. Several pesticides and illicit drugs were analyzed, and the limits of detections (LODs) were as low as 30 pg mL(-1) for the GC-DBDI-MS coupling (corresponding to 60 fg on-column sensitivity) and 30 fg mL(-1) for SPME-GC-DBDI-MS...
April 26, 2017: Analyst
https://www.readbyqxmd.com/read/28441596/individual-variation-of-persistent-organic-pollutants-in-relation-to-stable-isotope-ratios-sex-reproductive-phase-and-oxidative-status-in-scopoli-s-shearwaters-calonectris-diomedea-from-the-southern-mediterranean
#5
David Costantini, Manrico Sebastiano, Martina S Müller, Igor Eulaers, Per Ambus, Govindan Malarvannan, Adrian Covaci, Bruno Massa, Giacomo Dell'Omo
Little is known about the accumulation of persistent organic pollutants (POPs) and its consequences for seabirds in the Mediterranean basin. We characterised the plasma contaminant profile (polychlorinated biphenyls ΣPCBs; organochlorine pesticides ΣOCPs; polybrominated diphenyl ethers ΣPBDEs) of a population of the seabird Scopoli's shearwater (Calonectris diomedea) that breeds in the southern Mediterranean (Linosa Island) and investigated (i) whether sex, stable isotope ratios (related to diet), reproductive phase (early incubation vs...
April 22, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28441593/a-comprehensive-evaluation-of-the-environmental-quality-of-a-coastal-lagoon-ravenna-italy-integrating-chemical-and-physiological-analyses-in-mussels-as-a-biomonitoring-strategy
#6
Marco Capolupo, Silvia Franzellitti, Alisar Kiwan, Paola Valbonesi, Enrico Dinelli, Emanuela Pignotti, Manfred Birke, Elena Fabbri
This study aimed at evaluating the environmental quality of a coastal lagoon (Pialassa Piomboni, NW-Adriatic, Italy) by combining analyses of biomarkers of environmental stress and bioaccumulation of contaminants in marine mussels (Mytilus galloprovincialis) transplanted for 28days to six selected sites. Assessed biomarkers encompassed lysosomal endpoints, oxidative stress and detoxification parameters, specific responses to metals, neuro- and genotoxic substances; chemical analyses focused on PAHs, metals, pesticide and pharmaceuticals...
April 22, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28441424/correction-suicide-prevention-through-means-restriction-impact-of-the-2008-2011-pesticide-restrictions-on-suicide-in-sri-lanka
#7
Duleeka W Knipe, Shu-Sen Chang, Andrew Dawson, Michael Eddleston, Flemming Konradsen, Chris Metcalfe, David Gunnell
[This corrects the article DOI: 10.1371/journal.pone.0172893.].
2017: PloS One
https://www.readbyqxmd.com/read/28441345/levels-and-distribution-of-pollutants-in-the-waters-of-an-aquatic-ecosystem-in-northern-mexico
#8
Jesús Manuel Ochoa-Rivero, Ana Victoria Reyes-Fierro, Ma Del Rosario Peralta-Pérez, Francisco Javier Zavala-Díaz de la Serna, Lourdes Ballinas-Casarrubias, Ivan Salmerón, Héctor Rubio-Arias, Beatriz A Rocha-Gutiérrez
The availability of good quality water resources is essential to ensure healthy crops and livestock. The objective of this study was to evaluate the level of pollution in Bustillos Lagoon in northern Mexico. Physical-chemical parameters like sodium, chloride, sulfate, electrical conductivity, nitrates, and the pesticide dichlorodiphenyltrichloroethane (DDT) were analyzed to determine the water quality available in the lagoon. Although DDT has been banned in several countries, it is still used for agricultural purposes in Mexico and its presence in this area had not been analyzed previously...
April 25, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28440942/the-dangers-of-overestimating-avian-risks-of-pesticides
#9
Dwayne Rj Moore
No abstract text is available yet for this article.
May 2017: Integrated Environmental Assessment and Management
https://www.readbyqxmd.com/read/28439742/exploration-of-the-binding-affinities-between-ecdysone-agonists-and-ecr-usp-by-docking-and-mm-pb-gbsa-approaches
#10
Xueping Hu, Jin Xie, Song Hu, Li Zhang, Yanhong Dong
Ecdysone receptor (EcR) is a significant target in the identification of new environmentally friendly pesticides. There are two types of ecdysone agonists: steroidal ecdysone agonists and dibenzoylhydrazines (DBHs). In this study, various modeling methods (homology modeling, molecular docking, MD simulation, binding free energy calculation, and per-residue binding free energy decomposition) were utilized to study the different binding mechanisms of two types of ecdysone agonists. Our theoretical results indicated that the relative binding potencies of DBHs can be ranked sufficiently accurately using the MOE docking method...
May 2017: Journal of Molecular Modeling
https://www.readbyqxmd.com/read/28439681/side-effects-of-pesticides-used-in-irrigated-rice-areas-on-telenomus-podisi-ashmead-hymenoptera-platygastridae
#11
Juliano de Bastos Pazini, Rafael Antonio Pasini, Enio Júnior Seidel, Matheus Rakes, José Francisco da Silva Martins, Anderson Dionei Grützmacher
Telenomus podisi Ashmead (Hymenoptera: Platygastridae) is an important agent for the biological control of stink bug eggs in irrigated rice areas and the best strategy for its preservation is the use of selective pesticides. The aim of this study was to know the side-effects of pesticides used in Brazilian irrigated rice areas on egg parasitoid T. podisi. We evaluated, under laboratory conditions, 13 insecticides, 11 fungicides, 11 herbicides, and a control (distilled water) in choice and no-choice tests. In the no-choice tests, the pesticides were sprayed at pre and post-parasitism stages (egg and larval stages of T...
April 24, 2017: Ecotoxicology
https://www.readbyqxmd.com/read/28439293/socio-demographic-characteristics-clinical-profile-and-prevalence-of-existing-mental-illness-among-suicide-attempters-attending-emergency-services-at-two-hospitals-in-hawassa-city-south-ethiopia-a-cross-sectional-study
#12
Moges Ayehu, Tarekegn Solomon, Kinfe Lemma
BACKGROUND: Suicide is a major public health problem worldwide. It contributes for more than one million deaths each year. Since previous suicidal attempt was considered as the best predictor of future suicide, identifying factors behind suicidal attempt are helpful to design suicide prevention strategies. The aim of this study was to assess socio-demographic characteristics, clinical profile and prevalence of existing mental illness among patients presenting with suicidal attempt to emergency services of general hospitals in South Ethiopia...
2017: International Journal of Mental Health Systems
https://www.readbyqxmd.com/read/28438788/associations-between-persistent-organic-pollutants-type-2-diabetes-diabetic-nephropathy-and-mortality
#13
Brian A Grice, Robert G Nelson, Desmond E Williams, William C Knowler, Clinton Mason, Robert L Hanson, Kai McKeever Bullard, Meda E Pavkov
OBJECTIVE: Relationships were examined between persistent organic pollutants (POPs) and incident type 2 diabetes, end-stage renal disease (ESRD) and mortality. METHODS: In a nested case-control study, 300 persons without diabetes had baseline examinations between 1969 and 1974; 149 developed diabetes (cases) and 151 remained non-diabetic (controls) during 8.0 and 23.1 years of follow-up, respectively. POPs were measured at baseline. ORs for diabetes were computed by logistic regression analysis...
April 24, 2017: Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/28437697/catalytic-polymer-clay-composite-for-enhanced-removal-and-degradation-of-diazinon
#14
Itamar A Shabtai, Yael G Mishael
It is well established that organophosphate pesticides, such as diazinon, pose environmental and health risks. Diazinon is prone to rapid acidic hydrolysis, forming the less toxic compound 2-isopropyl-6-methyl-4-pyrimidinol (IMP). In this study, diazinon surface catalyzed hydrolysis was achieved by its adsorption to a composite, based on protonated poly (4-vinyl-pyridine-co-styrene) (HPVPcoS) and montmorillonite (MMT) clay. The adsorption affinity and kinetics of diazinon to HPVPcoS-MMT were significantly higher than those obtained to the deprotonated PVPcoS-MMT, emphasizing the importance of hydrogen bonding...
April 6, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28437652/review-of-take-home-pesticide-exposure-pathway-in-children-living-in-agricultural-areas
#15
REVIEW
Carly Hyland, Ouahiba Laribi
BACKGROUND: Children of farmworkers may be chronically exposed to pesticides via the take-home exposure pathway. OBJECTIVE: The goal of this review was to analyze scientific literature evaluating the role of the take-home pesticide exposure pathway in children of agricultural workers. METHODS: A systematic review was undertaken and inclusion criteria were applied to identify original articles of interest. Of the 30 articles included in this review, some belonged to the same studies, resulting in a total of 23 studies...
April 21, 2017: Environmental Research
https://www.readbyqxmd.com/read/28437650/indoor-to-outdoor-relationship-of-aerosol-particles-inside-a-naturally-ventilated-apartment-a-comparison-between-single-parameter-analysis-and-indoor-aerosol-model-simulation
#16
Tareq Hussein
The indoor-to-outdoor relationship of aerosol particles is affected by several mechanisms including penetration, ventilation rate, dry deposition rate and sources. Understanding the effect of these factors is essential for a deeper knowledge of the indoor-to-outdoor relationship. In real-life conditions, it is difficult to analyze these factors in a naturally ventilated environment. In this study, a naturally ventilated and an occupied apartment was used to investigate the indoor-to-outdoor relationship of aerosol particles by applying two different techniques; single-parameter analysis and indoor aerosol model simulation...
April 21, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28435951/a-novel-method-for-in-situ-synthesis-of-sers-active-gold-nanostars-on-polydimethylsiloxane-film
#17
B Fortuni, Y Fujita, M Ricci, T Inose, R Aubert, G Lu, J A Hutchison, J Hofkens, L Latterini, H Uji-I
A novel one-step in situ synthesis of gold nanostars (AuNSs) on a pre-cured polydimethylsiloxane (PDMS) film is proposed for the fabrication of highly sensitive surface-enhanced Raman scattering (SERS) substrates. Plasmonic activity of the substrates was investigated by collecting SERS maps of 4-mercaptobenzoic acid (4-MBA). The applicability of these flexible substrates is further demonstrated by SERS-based pesticide detection on fruit skin.
April 24, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28435187/effect-of-food-processing-on-degradation-of-hexachlorocyclohexane-and-its-isomers-in-milk
#18
Sujatha Singh, Krishnaiah Nelapati
AIM: To study the effect of different food processing techniques on the degradation of organochlorine compounds (α, β, ɣ and δ hexachlorocyclohexane isomers (HCH)) residues in both natural and fortified samples of milk. MATERIALS AND METHODS: Raw milk samples are collected from the local areas of Hyderabad, India. Naturally and fortified milk samples (HCH) were subjected to various food processing techniques, pasteurization (63ºC for ½ h), sterilization (121ºC for 15 min) and boiling for 5 min and analyzed by gas chromatography with electron capture detector using quick, easy, cheap, effective, rugged and safe method for multiresidue analysis of pesticides in milk with slight modification...
March 2017: Veterinary World
https://www.readbyqxmd.com/read/28435029/activity-of-carboxylesterases-glutathione-s-transferase-and-monooxygenase-on-rhipicephalus-microplus-exposed-to-fluazuron
#19
Fabrício Nascimento Gaudêncio, Guilherme Marcondes Klafke, Vinícius Menezes Tunholi-Alves, Thaís Paes Ferreira, Cristiane Nunes Coelho, Adivaldo Henrique da Fonseca, Isabele da Costa Angelo, Jairo Pinheiro
The objective of this study was to assess the effect of the exposure to fluazuron on the activity of common pesticide detoxification enzyme groups in the cattle tick (Rhipicephalus microplus). Engorged females of a susceptible strain (POA) and a resistant strain (Jaguar) were exposed in vitro to fluazuron and their eggs and larvae were used to compare the activities of the general esterases, mixed-function oxidases (MFO) and glutathione-S-transferase (GST). The results showed significant elevation in MFO contents and esterases activity in the resistant strain when compared with the susceptible strain, in eggs and larvae respectively...
April 20, 2017: Parasitology International
https://www.readbyqxmd.com/read/28434995/an-sir-dengue-transmission-model-with-seasonal-effects-and-impulsive-control
#20
Joseph Páez Chávez, Thomas Götz, Stefan Siegmund, Karunia Putra Wijaya
In recent decades, Dengue fever and its deadly complications, such as Dengue hemorrhagic fever, have become one of the major mosquito-transmitted diseases, with an estimate of 390 million cases occurring annually in over 100 tropical and subtropical countries, most of which belonging to the developing world. Empirical evidence indicates that the most effective mechanism to reduce Dengue infections is to combat the disease-carrying vector, which is often implemented via chemical pesticides to destroy mosquitoes in their adult or larval stages...
April 20, 2017: Mathematical Biosciences
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