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https://www.readbyqxmd.com/read/29165339/chemical-compounds-and-bioactivity-of-aqueous-extracts-of-alibertia-spp-in-the-control-of-plutella-xylostella-l-lepidoptera-plutellidae
#1
Lucas L S Peres, Ana I Sobreiro, Irys F S Couto, Rosicléia M Silva, Fabricio F Pereira, Silvia C Heredia-Vieira, Claudia A L Cardoso, Munir Mauad, Silvana P Q Scalon, Sandra S Verza, Rosilda M Mussury
Successive applications of insecticides to control Plutella xylostella L. (Lepidoptera: Plutellidae) have resulted in the emergence of resistant populations of this insect. A novel control measure for this target insect could be the use of botanical insecticides derived from plant tissues. Hence, we experimentally tested aqueous extracts of Alibertia edulis (Rich.), Alibertia intermedia (Mart.), and Alibertia sessilis (Vell.) K. Schum. found in the Brazilian savannah in order to investigate their potential to disrupt the life cycle of P...
November 22, 2017: Insects
https://www.readbyqxmd.com/read/29165157/the-hokkaido-birth-cohort-study-on-environment-and-children-s-health-cohort-profile-updated-2017
#2
Reiko Kishi, Atsuko Araki, Machiko Minatoya, Tomoyuki Hanaoka, Chihiro Miyashita, Sachiko Itoh, Sumitaka Kobayashi, Yu Ait Bamai, Keiko Yamazaki, Ryu Miura, Naomi Tamura, Kumiko Ito, Houman Goudarzi
The Hokkaido Study on Environment and Children's Health is an ongoing study consisting of two birth cohorts of different population sizes: the Sapporo cohort and the Hokkaido cohort. Our primary study goals are (1) to examine the effects of low-level environmental chemical exposures on birth outcomes, including birth defects and growth retardation; (2) to follow the development of allergies, infectious diseases, and neurobehavioral developmental disorders and perform a longitudinal observation of child development; (3) to identify high-risk groups based on genetic susceptibility to environmental chemicals; and (4) to identify the additive effects of various chemicals, including tobacco smoking...
May 18, 2017: Environmental Health and Preventive Medicine
https://www.readbyqxmd.com/read/29165145/organochlorine-pesticide-level-in-patients-with-chronic-kidney-disease-of-unknown-etiology-and-its-association-with-renal-function
#3
Rishila Ghosh, Manushi Siddarth, Neeru Singh, Vipin Tyagi, Pawan Kumar Kare, Basu Dev Banerjee, Om Prakash Kalra, Ashok Kumar Tripathi
BACKGROUND: Involvement of agrochemicals have been suggested in the development of chronic kidney disease of unknown etiology (CKDu). The association between CKDu and blood level of organochlorine pesticides (OCPs) in CKDu patients has been examined in the present study. METHODS: All the recruited study subjects (n = 300) were divided in three groups, namely, healthy control (n = 100), patients with chronic kidney disease of unknown etiology (n = 100), and patients with chronic kidney disease of known etiology (CKDk) (n = 100)...
May 26, 2017: Environmental Health and Preventive Medicine
https://www.readbyqxmd.com/read/29164468/assessment-of-water-resource-contamination-by-pesticides-in-vegetable-producing-areas-in-burkina-faso
#4
Edouard Lehmann, Morgan Fargues, Jean-Jacques Nfon Dibié, Yacouba Konaté, Luiz Felippe de Alencastro
This study proposes a comprehensive approach to investigate water resource contamination by pesticides under the specific climatic and hydrological conditions of the Sudano-Sahelian climate. Samples were collected from traditional wells, boreholes, and a lake in Burkina Faso. A multiresidue analysis was developed for 25 pesticides identified during field surveys. Polar organic chemical integrative samplers (POCIS) were used to confirm trends observed with grab samples. Uptake kinetics of POCIS were assessed by in situ calibration...
November 21, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29163375/isolation-and-characterization-of-pseudomonas-spp-strains-that-efficiently-decompose-sodium-dodecyl-sulfate
#5
Ewa M Furmanczyk, Michal A Kaminski, Grzegorz Spolnik, Maciej Sojka, Witold Danikiewicz, Andrzej Dziembowski, Leszek Lipinski, Adam Sobczak
Due to their particular properties, detergents are widely used in household cleaning products, cosmetics, pharmaceuticals, and in agriculture as adjuvants tailoring the features of pesticides or other crop protection agents. The continuously growing use of these various products means that water soluble detergents have become one of the most problematic groups of pollutants for the aquatic and terrestrial environments. Thus it is important to identify bacteria having the ability to survive in the presence of large quantities of detergent and efficiently decompose it to non-surface active compounds...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29162843/behavioral-responses-of-honey-bees-apis-mellifera-to-natural-and-synthetic-xenobiotics-in-food
#6
Ling-Hsiu Liao, Wen-Yen Wu, May R Berenbaum
While the natural foods of the western honey bee (Apis mellifera) contain diverse phytochemicals, in contemporary agroecosystems honey bees also encounter pesticides as floral tissue contaminants. Whereas some ubiquitous phytochemicals in bee foods up-regulate detoxification and immunity genes, thereby benefiting nestmates, many agrochemical pesticides adversely affect bee health even at sublethal levels. How honey bees assess xenobiotic risk to nestmates as they forage is poorly understood. Accordingly, we tested nine phytochemicals ubiquitous in nectar, pollen, or propolis, as well as five synthetic xenobiotics that frequently contaminate hives-two herbicides (atrazine and glyphosate) and three fungicides (boscalid, chlorothalonil, and prochloraz)...
November 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29162301/-validation-of-the-technique-based-on-dot-blot-for-the-detection-of-cercospora-kikuchii-in-soybean-plants
#7
Mónica C Mattio, María V Peretti Canale, María C Lurá, María G Latorre Rapela
Cercospora kikuchii is a common pathogen in soybean plants that causes crop spoilage. Its early and precise identification would prevent the misuse of pesticides and allow the initiation of an appropriate treatment. A quick, economical and easy-to-execute technique is the Dot blot, capable of recognizing the presence of a genus-specific protein called CFP (Cercosporin Facilitator Protein). The objective was to validate this technique to guarantee the reliability of the results. For that purpose, 29 infected soybean plants and 31 healthy plants were processed, taking into account a 95% desired confidence level and a permissible error of 5%...
November 18, 2017: Revista Argentina de Microbiología
https://www.readbyqxmd.com/read/29161848/complex-wolbachia-infection-dynamics-in-mosquitoes-with-imperfect-maternal-transmission
#8
Bo Zheng, Wenliang Guo, Linchao Hu, Mugen Huang, Jianshe Yu
Dengue, malaria, and Zika are dangerous diseases primarily transmitted by Aedes aegypti, Aedes albopictus, and Anopheles stephensi. In the last few years, a new disease control method, besides pesticide spraying to kill mosquitoes, has been developed by releasing mosquitoes carrying bacterium Wolbachia into the natural areas to infect the wild population of mosquitoes and block disease transmission. The bacterium is transmitted by infected mothers and the maternal transmission was assumed to be perfect in virtually all previous models...
April 1, 2018: Mathematical Biosciences and Engineering: MBE
https://www.readbyqxmd.com/read/29161677/nanotechnology-based-recent-approaches-for-sensing-and-remediation-of-pesticides
#9
REVIEW
Deepak Rawtani, Nitasha Khatri, Sanjiv Tyagi, Gaurav Pandey
Pesticides are meant to control and destroy the pests and weeds. They are classified into different categories on the basis their origin and type of pest they target. Chemical pesticides such as insecticides, herbicides and fungicides are commonly used in agricultural fields. However, the excessive use of these agrochemicals have adverse effects on environment such as reduced population of insect pollinators, threat to endangered species and habitat of birds. Upon consumption; chemical pesticides also cause various health issues such as skin, eye and nervous system related problems and cancer upon prolonged exposure...
November 18, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/29161513/insights-into-molecular-basis-of-acute-contact-toxicity-of-diverse-organic-chemical-in-honey-bee
#10
Xiao Li, Yuan Zhang, Hongna Chen, Huanhuan Li, Yong Zhao
The chemical pollutants, including pesticides and other industrial chemicals, have resulted in significant risks to the whole ecosystem. Therefore, the ecological risk assessment of chemicals is vital and necessary. Since honey bee (Apis mellifera) is probably among the most exposed species to the polluting chemicals, we focused on the in silico estimation of honey bee toxicity (HBT) of chemical and the analysis of the relevance of chemical HBT and several key physical-chemical properties and structural characteristics...
November 21, 2017: Journal of Chemical Information and Modeling
https://www.readbyqxmd.com/read/29160037/interactions-of-host-plant-resistance-and-seed-treatments-on-soybean-aphid-aphis-glycines-matsumura-and-soybean-cyst-nematode-heterodera-glycines-ichinohe
#11
Eric H Clifton, Gregory L Tylka, Aaron J Gassmann, Erin W Hodgson
BACKGROUND: Soybean cyst nematode, Heterodera glycines, and soybean aphid, Aphis glycines, are invasive, widespread and economically important pests of soybean, Glycines max, in North America. Management of these pests relies primarily on use of pesticides and soybean germplasm with genetic resistance. A three-year field study and complementary greenhouse experiment were conducted to determine the benefits of host-plant resistance (HPR) and pesticidal seed treatments for managing pest populations and preserving soybean yield...
November 21, 2017: Pest Management Science
https://www.readbyqxmd.com/read/29159543/endosulfan-is-toxic-to-the-reproductive-health-of-male-freshwater-fish-cyprinion-watsoni
#12
Fakhar Ul Islam, Samina Jalali, Mustafa Nawaz Shafqat, Syed Tahir Abbas Shah
Endosulfan is an organochlorine pesticide that is toxic to aquatic life. Endosulfan might hamper the reproductive health of indigenous fish in agricultural areas of Pakistan where this pesticide is sprayed widely. The aim of the current study is to investigate the toxic effects of endosulfan on selected reproductive parameters of male freshwater fish, Cyprinion watsoni. Two concentrations of endosulfan (0.5 and 1 ppb for 30 days exposure) were tested for their effects on body weight, body length, and testicular weight, length, and width...
November 20, 2017: Die Naturwissenschaften
https://www.readbyqxmd.com/read/29157286/farmers-perception-of-termites-in-agriculture-production-and-their-indigenous-utilization-in-northwest-benin
#13
Laura Estelle Yêyinou Loko, Azize Orobiyi, Paterne Agre, Alexandre Dansi, Manuele Tamò, Yves Roisin
BACKGROUND: Although termites are considered as agricultural pests, they play an important role in maintaining the ecosystem. Therefore, it matters to investigate the farmers' perception of the impacts of the termites on the agriculture and their indigenous utilization. METHODS: A semi-structured questionnaire was used to interview 94 farmers through 10 villages of Atacora department, in the northwestern region of Benin, to obtain information for the development of successful strategies of termite management and conservation...
November 21, 2017: Journal of Ethnobiology and Ethnomedicine
https://www.readbyqxmd.com/read/29156874/application-of-hemoperfusion-in-severe-acute-organophosphorus-pesticide-poisoning
#14
Zhenhe Li, Guixia Wang, Guodong Zhen, Yuliang Zhang, Jiaqiang Liu, Shanmei Liu
Background/aim: The aim of this research is to investigate the clinical efficacy of hemoperfusion in the treatment of severe acute organophosphorus pesticide poisoning (AOPP). Materials and methods: Patients meeting the inclusion criteria were divided into Groups 1 and 2 according to whether hemoperfusion was applied or not. Group 2 was observed as the control group. Conventional therapy for AOPP was given to Groups 1 and 2. Besides conventional treatment, patients in Group 1 were also treated with hemoperfusion therapy...
August 23, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/29156441/modeling-spray-drift-and-runoff-related-inputs-of-pesticides-to-receiving-water
#15
Xuyang Zhang, Yuzhou Luo, Kean S Goh
Pesticides move to surface water via various pathways including surface runoff, spray drift and subsurface flow. Little is known about the relative contributions of surface runoff and spray drift in agricultural watersheds. This study develops a modeling framework to address the contribution of spray drift to the total loadings of pesticides in receiving water bodies. The modeling framework consists of a GIS module for identifying drift potential, the AgDRIFT model for simulating spray drift, and the Soil and Water Assessment Tool (SWAT) for simulating various hydrological and landscape processes including surface runoff and transport of pesticides...
November 17, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/29156286/phytotoxicity-of-pyrethroid-pesticides-and-its-metabolite-towards-cucumis-sativus
#16
I Bragança, Paulo C Lemos, Piedade Barros, Cristina Delerue-Matos, Valentina F Domingues
Pyrethroid pesticides residues have been frequently detected in soils and have been recognized to contribute to soil toxicity. The phytotoxic impact of pesticides was evaluated in Cucumis sativus (C. sativus) seeds. Percentage of seed germination, root elongation, shoot length and leaf length were considered as endpoints to assess the possible acute phytotoxicity of soil by the exposure to pyrethroid pesticides (cypermethrin, deltamethrin and cyhalothrin) and its metabolite phenoxybenzoic acid (3-PBA), in a concentration range between 50 and 500μgkg(-1)...
November 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29156282/pesticides-in-agricultural-headwater-streams-in-southwestern-germany-and-effects-on-macroinvertebrate-populations
#17
Gero Weber, Nicole Christmann, Ann-Cathrin Thiery, Dieter Martens, Jochen Kubiniok
Pesticides are a major burden for stream ecosystems in the central European cultivated landscape. The objective of the present study was to investigate the applicability of ecological indicator methods in relation to toxicity of pesticides under the specific hydro-morphological conditions in small water bodies. Thus, an association of toxicity evaluating methods with different ecological indicators was to be attempted. Based on three random samples taken within the 2016 vegetation period, 23 headwater areas in the Saarland were investigated to test for pesticides and their metabolites...
November 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29156230/transport-of-a-neonicotinoid-pesticide-thiamethoxam-from-artificial-seed-coatings
#18
Jesse Radolinski, Junxue Wu, Kang Xia, Ryan Stewart
Neonicotinoid insecticides coat the seeds of major crops worldwide; however, the high solubility of these compounds, combined with their toxicity to non-target organisms, makes it critical to decipher the processes by which they are transported through soils and into aquatic environments. Transport and distribution of a neonicotinoid (thiamethoxam, TMX) were investigated by growing TMX-coated corn seeds in coarse-textured and fine-textured soil columns (20 and 60cm lengths). To understand the influence of living plants, corn plants were terminated in half of the columns (no plant treatment) and allowed to grow to the V5 growth stage (33days of growth) in the other half (with plant treatment)...
November 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29155976/description-of-a-mass-poisoning-in-a-rural-district-in-mozambique-the-first-documented-bongkrekic-acid-poisoning-in-africa
#19
Eduardo Samo Gudo, Kyla Cook, Amelia M Kasper, Alfredo Vergara, Cristolde Salomão, Fernanda Oliveira, Hamida Ismael, Cristovão Saeze, Carla Mosse, Quinhas Fernandes, Sofia Omar Viegas, Cynthia S Baltazar, Timothy J Doyle, Ellen Yard, Alaina Steck, Mayda Serret, Travis M Falconer, Sara E Kern, Jennifer L Brzezinski, James A Turner, Brian L Boyd, Ilesh V Jani
Background: On January 9, 2015, in a rural town in Mozambique, over 230 people became sick and 75 died from an illness linked to drinking pombe, a traditional alcoholic beverage. Methods: An investigation was conducted to identify cases and determine the cause of the outbreak. A case was defined as any resident of Chitima who developed any new or unexplained neurologic, gastrointestinal, or cardiovascular symptom from January 9 at 6:00 a.m. through January 12. We conducted medical record reviews; healthcare worker and community surveys; anthropological and toxicological investigations of local medicinal plants and commercial pesticides; and laboratory testing of the suspect and control pombe...
November 16, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29155358/criticism-of-efsa-s-scientific-on-combinatorial-effects-of-stacked-gm-plants
#20
Thomas Bøhn
Recent genetically modified plants tend to include both insect resistance and herbicide tolerance traits. Some of these 'stacked' GM plants have multiple Cry toxins expressed as well as tolerance to several herbicides. This means that non-target organisms in the environment (biodiversity) will be co-exposed to multiple stressors simultaneously. A similar co-exposure may happen to consumers through chemical residues in the food chain. EFSA, the responsible unit for minimizing risk of harm in European food chains, has expressed its scientific interest in combinatorial effects...
November 16, 2017: Food and Chemical Toxicology
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