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https://www.readbyqxmd.com/read/28724094/temperature-impacts-on-soil-microbial-communities-and-potential-implications-for-the-biodegradation-of-turfgrass-pesticides
#1
Lisa M Reedich, Michael D Millican, Paul L Koch
Maintaining healthy turfgrass often results in the use of pesticides to manage weed, insect, and disease pests. To identify and understand potential nontarget impacts of pesticide usage while still maintaining attractive and functional turfgrass sites, it is important to improve our understanding of how pesticides degrade in various environments throughout the growing season. Temperature heavily influences microbial community composition and activity, and the microbial community often heavily influences pesticide degradation in soil ecosystems...
May 2017: Journal of Environmental Quality
https://www.readbyqxmd.com/read/28724083/identification-of-candidate-genes-responsible-for-stem-pith-production-using-expression-analysis-in-solid-stemmed-wheat
#2
A J Oiestad, J M Martin, J Cook, A C Varella, M J Giroux
The wheat stem sawfly (WSS) is an economically important pest of wheat in the Northern Great Plains. The primary means of WSS control is resistance associated with the single quantitative trait locus (QTL) , which controls most stem solidness variation. The goal of this study was to identify stem solidness candidate genes via RNA-seq. This study made use of 28 single nucleotide polymorphism (SNP) makers derived from expressed sequence tags (ESTs) linked to contained within a 5.13 cM region. Allele specific expression of EST markers was examined in stem tissue for solid and hollow-stemmed pairs of two spring wheat near isogenic lines (NILs) differing for the QTL...
July 2017: Plant Genome
https://www.readbyqxmd.com/read/28722344/a-large-scale-assessment-of-european-rabbit-damage-to-agriculture-in-spain
#3
Miguel Delibes-Mateos, Miguel Ángel Farfán, Carlos Rouco, Jesús Olivero, Ana Luz Márquez, John E Fa, Juan Mario Vargas, Rafael Villafuerte
BACKGROUND: Numerous small and medium-sized mammal pests cause widespread and economically significant damage to crops all over the globe. However, most research on pest species has focused on accounts of the level of damage. There are fewer studies concentrating on the description of crop damage caused by pests at large geographical scales, or on analysing the ecological and anthropogenic factors correlated with these observed patterns. We investigated the relationship between agricultural damage by the European rabbit (Oryctolagus cuniculus) and environmental and anthropogenic variables throughout Spain...
July 19, 2017: Pest Management Science
https://www.readbyqxmd.com/read/28722154/application-of-headspace-solid-phase-microextraction-followed-by-gas-chromatography-coupled-with-mass-spectrometry-spme-gc-ms-to-determine-esters-of-carboxylic-acids-and-other-volatile-compounds-in-d-maculatus-and-d-ater-lipids
#4
Magdalena Cerkowniak, Mieczysława I Boguś, Emilia Włóka, Piotr Stepnowski, Marek Gołębiowski
A constant problem in veterinary medicine, human healthcare, agriculture, forestry or horticulture is the large number of pests, and the lack of effective methods to combat them which cause no harm to the rest of the environment. It is recommended and desired to reduce the use of chemicals and increase the use of agents based on the knowledge acquired in the field of biology, chemistry, and agrochemicals. To learn the defense mechanisms of insects we should consider not only the site of their physiological ability to protect against external factors (cuticle), but also check the possibility of chemical protection, formed by all compounds on the surface and in the body of insects...
July 19, 2017: Biomedical Chromatography: BMC
https://www.readbyqxmd.com/read/28721745/pesticide-genotoxicity-in-cotton-picking-women-in-pakistan-evaluated-using-comet-assay
#5
Tayyaba Ali, Muhammad Ismail, Farkhanda Asad, Asma Ashraf, Usman Waheed, Qaiser M Khan
To control agricultural pests and meet the increasing food demands, pesticides use has been increased substantially over time. Although pesticides are relatively specific to their targets, they can affect non-target organisms and are hazardous for the population around the application areas particularly to the individuals engaged in different types of agricultural activities. This situation is worse in developing and under-developed countries where personal protective equipment is merely used and regulatory guidelines are hardly practiced...
July 19, 2017: Drug and Chemical Toxicology
https://www.readbyqxmd.com/read/28721609/susceptibility-of-diaphorina-citri-hemiptera-liviidae-and-its-parasitoid-tamarixia-radiata-hymenoptera-eulophidae-to-entomopathogenic-fungi-under-laboratory-conditions
#6
K H Ibarra-Cortés, A W Guzmán-Franco, H González-Hernández, L D Ortega-Arenas, J A Villanueva-Jiménez, A Robles-Bermúdez
Diaphorina citri (Kuwayama) is a global pest of citrus that transmits the bacteria associated with the disease, Huanglongbing. Entomopathogenic fungi and the parasitoid Tamarixia radiata (Waterston) are important biological control agents of this pest and likely to interact in D. citri populations. As a basis for interaction studies, we determined the susceptibility of nymphs and adults of D. citri and adults of the parasitoid T. radiata to six fungal isolates from the species Beauveria bassiana s.l. (Bals...
July 18, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/28721608/a-new-light-trap-model-as-an-alternative-for-controlling-pests-in-eucalyptus-plantations
#7
R G Mafia, E B Loureiro, J B Silva, J A C Simões, T G Zarpelon, N S Bezerra Junior, M B Damacena
Eucalyptus plantations can be affected by species of defoliating caterpillars. The integrated management of this group primarily involves a monitoring system, natural enemies, and biological products. Alternative control methods, including the use of conventional light traps, have not been adopted, mostly because of their low efficiency. Therefore, a more efficient light trap model was developed. The new model allowed the capture of 3.6 times as many insects as the conventional model, with a 261% gain in control efficiency...
July 18, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/28719883/sublethal-insecticide-exposure-affects-reproduction-chemical-phenotype-as-well-as-offspring-development-and-antennae-symmetry-of-a-leaf-beetle
#8
Thorben Müller, Alexander Prosche, Caroline Müller
The area of agriculturally used land and following to that the use of pesticides are steadily increasing. Insecticides do not only reduce pest organisms on crops but can also affect non-target organisms when present in sublethal concentrations in the environment. We investigated the effects of an exposure to sublethal pyrethroid (lambda-cyhalothrin) concentrations, at doses 20 and 60 times lower than the LC50, respectively, on reproductive traits and adult cuticular hydrocarbon (CHC) profiles of a leaf beetle (Phaedon cochleariae Fabricius)...
July 15, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28719023/identification-of-odorant-binding-and-chemosensory-protein-genes-and-the-ligand-affinity-of-two-of-the-encoded-proteins-suggest-a-complex-olfactory-perception-system-in-periplaneta-americana
#9
P He, Z-Q Li, Y-F Zhang, L Chen, J Wang, L Xu, Y-N Zhang, M He
The American cockroach (Periplaneta americana) is an urban pest with a precise chemosensory system that helps it achieve complex physiological behaviours, including locating food and mating. However, its chemosensory mechanisms have not been well studied. Here, we identified 71 putative odorant carrier protein genes in P. americana, including 57 new odorant-binding proteins (OBPs) and 11 chemosensory proteins (CSPs). To identify their physiological functions, we investigated their tissue expression patterns in antennae, mouthparts, legs, and the remainder of the body of both sexes, and determined that most of these genes were expressed in chemosensory organs...
July 18, 2017: Insect Molecular Biology
https://www.readbyqxmd.com/read/28719016/insecticide-resistance-of-adults-and-nymphs-of-asian-citrus-psyllid-populations-from-apatzing%C3%A3-n-valley-mexico
#10
Saúl Pardo, Ana M Martínez, José I Figueroa, Juan M Chavarrieta, Elisa Viñuela, Ángel Rebollar-Alviter, Mario A Miranda, Javier Valle, Samuel Pineda
BACKGROUND: Control of the Asian citrus psyllid Diaphorina citri Kuwayama, the most important pest of citrus worldwide, is based on the use of insecticides, though unsatisfactory results have recently been reported. In this study, insecticide resistance of D. citri to three insecticides (bifenthrin, malathion, and chlorpyrifos) was examined. RESULTS: Three populations (designed Dci-CParácuaro, Dci-El Junco, and Dci-Antúnez) of both adults and fourth-instar D. citri individuals were collected in 2014 at two and one different times, respectively, from three locations (Crucero de Parácuaro, El Junco, and Antúnez)...
July 18, 2017: Pest Management Science
https://www.readbyqxmd.com/read/28718835/do-refuge-plants-favour-natural-pest-control-in-maize-crops
#11
Reinaldo Quispe, Marina Mazón, Alexander Rodríguez-Berrío
The use of non-crop plants to provide the resources that herbivorous crop pests' natural enemies need is being increasingly incorporated into integrated pest management programs. We evaluated insect functional groups found on three refuges consisting of five different plant species each, planted next to a maize crop in Lima, Peru, to investigate which refuge favoured natural control of herbivores considered as pests of maize in Peru, and which refuge plant traits were more attractive to those desirable enemies...
July 18, 2017: Insects
https://www.readbyqxmd.com/read/28717209/non-target-effects-on-soil-microbial-parameters-of-the-synthetic-pesticide-carbendazim-with-the-biopesticides-cantharidin-and-norcantharidin
#12
Hainan Shao, Yalin Zhang
Considering the fact that biopesticides are increasingly used to replace synthetic pesticides in pest control, it is necessary to assess their ecotoxicity and especially their non-target effects on soil microorganisms, which is largely unknown. In this study, the effects of the synthetic pesticide carbendazim and the biopesticides (cantharidin and norcantharidin) on soil microbial parameters in a silt loam soil were evaluated. By using commercial formulations at the recommended and higher rates, both cantharidin and norcantharidin induced adverse effects on soil invertase, phosphatase activities and fungal gene structure, but these changes were transient...
July 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28717048/rna-seq-of-rice-yellow-stem-borer-scirpophaga-incertulas-reveals-molecular-insights-during-four-larval-developmental-stages
#13
Renuka P, Maganti S Madhav, Padmakumari A P, Kalyani M Barbadikar, Sathendra K Mangrauthia, Vijaya Sudhakara Rao K, Soma S Marla, Ravindra Babu V
The yellow stem borer (YSB), Scirpophaga incertulas is a prominent pest in the rice cultivation causing serious yield losses. The larval stage is an important stage in YSB, responsible for maximum infestation. However, limited knowledge exists on biology and mechanisms underlying growth and differentiation of YSB. To understand and identify the genes involved in YSB development and infestation, so as to design pest control strategies, we performed de novo transcriptome at 1(st), 3(rd), 5(th) and 7(th) larval developmental stages employing Illumina Hi-seq...
July 17, 2017: G3: Genes—Genomes—Genetics
https://www.readbyqxmd.com/read/28716581/diversifying-food-systems-in-the-pursuit-of-sustainable-food-production-and-healthy-diets
#14
REVIEW
Sangam L Dwivedi, Edith T Lammerts van Bueren, Salvatore Ceccarelli, Stefania Grando, Hari D Upadhyaya, Rodomiro Ortiz
Increasing demand for nutritious, safe, and healthy food because of a growing population, and the pledge to maintain biodiversity and other resources, pose a major challenge to agriculture that is already threatened by a changing climate. Diverse and healthy diets, largely based on plant-derived food, may reduce diet-related illnesses. Investments in plant sciences will be necessary to design diverse cropping systems balancing productivity, sustainability, and nutritional quality. Cultivar diversity and nutritional quality are crucial...
July 14, 2017: Trends in Plant Science
https://www.readbyqxmd.com/read/28716194/vaccicost-a-tool-to-estimate-the-resource-requirements-for-implementing-livestock-vaccination-campaigns-application-to-peste-des-petits-ruminants-ppr-vaccination-in-senegal
#15
Damian Tago, Baba Sall, Renaud Lancelot, Jennifer Pradel
Vaccination is one of the main tools currently available to control animal diseases. In eradication campaigns, vaccination plays a crucial role by reducing the number of susceptible hosts with the ultimate goal of interrupting disease transmission. Nevertheless, mass vaccination campaigns may be very expensive and in some cases unprofitable. VacciCost is a tool designed to help decision-makers in the estimation of the resources required to implement mass livestock vaccination campaigns against regulated diseases...
September 1, 2017: Preventive Veterinary Medicine
https://www.readbyqxmd.com/read/28716095/development-of-real-time-and-lateral-flow-dipstick-recombinase-polymerase-amplification-assays-for-rapid-detection-of-goatpox-virus-and-sheeppox-virus
#16
Yang Yang, Xiaodong Qin, Xiangle Zhang, Zhixun Zhao, Wei Zhang, Xueliang Zhu, Guozheng Cong, Yanmin Li, Zhidong Zhang
BACKGROUND: Goatpox virus (GTPV) and sheeppox virus (SPPV), which belong to the Capripoxvirus (CaPV), are economically important pathogens of small ruminants. Therefore, a sensitive, specific and rapid diagnostic assay for detection of GTPV and SPPV is necessary to accurately and promptly control these diseases. METHODS: Recombinase polymerase amplification (RPA) assays combined with a real-time fluorescent detection (real-time RPA assay) and lateral flow dipstick (RPA LFD assay) were developed targeting the CaPV G-protein-coupled chemokine receptor (GPCR) gene, respectively...
July 17, 2017: Virology Journal
https://www.readbyqxmd.com/read/28714917/larvicidal-and-nematicidal-activities-of-3-acylbarbituric-acid-analogues-against-asian-tiger-mosquito-aedes-albopictus-and-pine-wood-nematode-bursaphelenchus-xylophilus
#17
Seon-Mi Seo, Hyo-Rim Lee, Ji-Eun Lee, Yong-Chul Jeong, Hyung-Wook Kwon, Joon-Kwan Moon, Mark G Moloney, Il-Kwon Park
Widespread concern for the occurrence of resistant strains, along with the avoidance of the use of highly toxic insecticides and their wide environmental dispersal, highlights the need for the development of new and safer pest control agents. Natural products provide inspiration for new chemical entities with biological activities, and their analogues are good lead compounds for the development of new pest control agents. For this purpose, we evaluated the larvicidal and nematicidal activities of 48 3-acylbarbituric acid analogues against the Asian tiger mosquito, Aedes albopictus and the pine wood nematode, Bursaphelenchus xylophilus, organisms of increasing global concern...
July 17, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28714258/renal-neuroendocrine-control-of-desiccation-and-cold-tolerance-by-drosophila-suzukii
#18
Selim Terhzaz, Lucy Alford, Joseph G C Yeoh, Richard Marley, Anthony J Dornan, Julian A T Dow, Shireen A Davies
BACKGROUND: Neuropeptides are central to the regulation of physiological, and behavioural processes in insects, directly impacting cold and desiccation survival. However, little is known about the control mechanisms governing these responses in D. suzukii. The close phylogenetic relationship of D. suzukii with D. melanogaster allows, through genomic and functional studies, an insight into the mechanisms directing stress tolerance in D. suzukii. RESULTS: Capa, Leucokinin, DH44 and DH31 neuropeptides demonstrate a high level of conservation between D...
July 17, 2017: Pest Management Science
https://www.readbyqxmd.com/read/28714131/evaluating-a-push-pull-strategy-for-management-of-drosophila-suzukii-matsumura-in-red-raspberry
#19
Anna K Wallingford, Dong H Cha, Gregory M Loeb
BACKGROUND: Drosophilia suzukii Matsumura is a serious pest of small fruits that lays its eggs in growing fruit. Current management strategies rely on an unsustainable schedule of foliar applications of chemical insecticides. Alternative approaches to suppressing oviposition are under investigation, such as attract-and-kill and the use of oviposition deterrents. Here we evaluated two behavioral control approaches in combination as a push-pull strategy using laboratory and field assays...
July 17, 2017: Pest Management Science
https://www.readbyqxmd.com/read/28714108/assessing-the-spatial-distribution-of-tuta-absoluta-lepidoptera-gelechiidae-eggs-in-open-field-tomato-cultivation-through-geostatistical-analysis
#20
Júlio C Martins, Marcelo C Picanço, Ricardo S Silva, Alfredo H R Gonring, Tarcísio V S Galdino, Raul N C Guedes
BACKGROUND: The spatial distribution of insects is due to the interaction between individuals and the environment. Knowledge about the within-field pattern of spatial distribution of a pest is critical to planning control tactics, developing efficient sampling plans, and predicting the pests' damages. The leaf miner Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) is the main pest in tomato crops in several regions of the world. Despite the importance of this pest, the pattern of spatial distribution of T...
July 17, 2017: Pest Management Science
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