keyword
MENU ▼
Read by QxMD icon Read
search

insecticid resistance

keyword
https://www.readbyqxmd.com/read/29149712/detection-of-perfluoroalkyl-acids-and-sulphonates-in-italian-eel-samples-by-hplc-hrms-orbitrap
#1
Luca Maria Chiesa, Maria Nobile, Elisa Pasquale, Claudia Balzaretti, Petra Cagnardi, Doriana Tedesco, Sara Panseri, Francesco Arioli
Perfluoroalkyl substances (PFASs) contain one or more carbon-bound hydrogens substituted by fluorine. Since the 1950s, these compounds have been used to manufacture fat- and water-resistant fabrics, paper and food containers, and to produce photographic films, firefighting foams, detergents and insecticides. The widespread use and global distribution of PFASs, have led to their accumulation in the environment. Food, particularly fish and other seafood, is considered the main route of human exposure to PFASs...
October 27, 2017: Chemosphere
https://www.readbyqxmd.com/read/29148801/neuropeptidomics-of-the-bed-bug-cimex-lectularius
#2
Reinhard Predel, Susanne Neupert, Christian Derst, Klaus Reinhardt, Christian Wegener
The bed bug Cimex lectularius is a globally distributed human ectoparasite with fascinating biology. It has recently acquired resistance against a broad range of insecticides, causing a worldwide increase in bed bug infestations. The recent annotation of the bed bug genome revealed a full complement of neuropeptide and neuropeptide receptor genes in this species. With regard to the biology of C. lectularius, neuropeptide signalling is especially interesting since it regulates feeding, diuresis, digestion as well as reproduction, and also provides potential new targets for chemical control...
November 17, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/29148167/monitoring-resistance-of-cydia-pomonella-l-spanish-field-populations-to-new-chemical-insecticides-and-the-mechanisms-involved
#3
Dolors Bosch, Marcela A Rodríguez, Jesús Avilla
BACKGROUND: A widespread resistance of Cydia pomonella to organophosphates was demonstrated in populations from the Spanish Ebro Valley area that showed high levels of enzymatic detoxification. To determine the efficacy of new insecticides, neonate larvae bioassays were carried out on twenty field codling moth populations collected from three different Spanish apple production areas. Synergist bioassays were performed to detect the enzymatic mechanisms involved. RESULTS: The least active ingredients were methoxyfenozide, with 100% of the populations showing significantly lower mortality than the susceptible strain, and lambda-cyhalothrin, with very high resistant ratios (872...
November 16, 2017: Pest Management Science
https://www.readbyqxmd.com/read/29147778/genome-wide-investigation-of-transcription-factors-provides-insights-into-transcriptional-regulation-in-plutella-xylostella
#4
Qian Zhao, Dongna Ma, Yuping Huang, Weiyi He, Yiying Li, Liette Vasseur, Minsheng You
Transcription factors (TFs), which play a vital role in regulating gene expression, are prevalent in all organisms and characterization of them may provide important clues for understanding regulation in vivo. The present study reports a genome-wide investigation of TFs in the diamondback moth, Plutella xylostella (L.), a worldwide pest of crucifers. A total of 940 TFs distributed among 133 families were identified. Phylogenetic analysis of insect species showed that some of these families were found to have expanded during the evolution of P...
November 16, 2017: Molecular Genetics and Genomics: MGG
https://www.readbyqxmd.com/read/29147079/laboratory-evaluation-of-residual-efficacy-of-actellic-300-cs-pirimiphos-methyl-and-k-othrine-wg-250-deltamethrin-on-different-indoor-surfaces
#5
Kolade T Ibrahim, Kehinde O Popoola, Kenneth O Akure
The nature and type of local indoor resting wall surfaces to certain level influences the residual bio-efficacy of insecticides used in indoor residual spraying programs. Knockdown and mortality effects of an organophosphate Actellic 300 CS and pyrethroid K-Othrine WG 250 insecticides on the field-collected Culex quinquefasciatus were assessed bimonthly from July to November 2014, using World Health Organization (WHO) cones bioassay test. Knockdown and mortality rates were subjected to statistical analysis using χ(2) and Student t tests...
2017: International Journal of Insect Science
https://www.readbyqxmd.com/read/29144774/strategies-for-enhanced-crop-resistance-to-insect-pests
#6
Angela E Douglas
Insect pests are responsible for substantial crop losses worldwide through direct damage and transmission of plant diseases, and novel approaches that complement or replace broad-spectrum chemical insecticides will facilitate the sustainable intensification of food production in the coming decades. Multiple strategies for improved crop resistance to insect pests, especially strategies relating to plant secondary metabolism and immunity and microbiome science, are becoming available. Recent advances in metabolic engineering of plant secondary chemistry offer the promise of specific toxicity or deterrence to insect pests; improved understanding of plant immunity against insects provides routes to optimize plant defenses against insects; and the microbiomes of insect pests can be exploited, either as a target or as a vehicle for delivery of insecticidal agents...
November 16, 2017: Annual Review of Plant Biology
https://www.readbyqxmd.com/read/29143678/shifting-the-paradigm-in-dirofilaria-immitis-prevention-blocking-transmission-from-mosquitoes-to-dogs-using-repellents-insecticides-and-macrocyclic-lactone-prevention-as-part-of-a-multimodal-approach
#7
John W McCall, Marie Varloud, Elizabeth Hodgkins, Abdelmoneim Mansour, Utami DiCosty, Scott McCall, James Carmichael, Ben Carson, Justin Carter
BACKGROUND: This study assessed the influence of a topical ectoparasiticide (dinotefuran-permethrin-pyriproxyfen, DPP, Vectra® 3D, Ceva Animal Health) combined with a macrocyclic lactone (milbemycin oxime, MBO, Interceptor®, Virbac) on transmission of heartworm L3 from mosquitoes to dogs and subsequent development of worms in treated dogs exposed to infected mosquitoes. METHODS: Thirty-two beagle dogs were allocated to four groups of eight: Group 1, untreated controls; Group 2, treated topically with DPP on Day 0; Group 3, treated orally with MBO on Day 51; and Group 4, treated with DPP on Day 0 and MBO on Day 51...
November 9, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/29143178/transgenic-cotton-co-expressing-chimeric-vip3acaa-and-cry1ac-confers-effective-protection-against-cry1ac-resistant-cotton-bollworm
#8
Wen-Bo Chen, Guo-Qing Lu, Hong-Mei Cheng, Chen-Xi Liu, Yu-Tao Xiao, Chao Xu, Zhi-Cheng Shen, Mario Soberón, Alejandra Bravo, Kong-Ming Wu
Wide planting of transgenic Bt cotton in China since 1997 to control cotton bollworm (Helicoverpa armigera) has increased yields and decreased insecticide use, but the evolution of resistance to Bt cotton by H. armigera remains a challenge. Toward developing a new generation of insect-resistant transgenic crops, a chimeric protein of Vip3Aa1 and Vip3Ac1, named Vip3AcAa, having a broader insecticidal spectrum, was specifically created previously in our laboratory. In this study, we investigated cross resistance and interactions between Vip3AcAa and Cry1Ac with three H...
November 15, 2017: Transgenic Research
https://www.readbyqxmd.com/read/29141726/status-of-insecticide-resistance-in-papua-new-guinea-an-update-from-nation-wide-monitoring-of-anopheles-mosquitoes
#9
Gussy Koimbu, Cyrille Czeher, Michelle Katusele, Muker Sakur, Lemen Kilepak, Anthony Tandrapah, Manuel W Hetzel, Justin Pulford, Leanne Robinson, Stephan Karl
Insecticide resistance (IR) monitoring is an important component of vector-borne disease control. The last assessment of IR in Papua New Guinea (PNG) was conducted in 2010. Since then, vector populations have been exposed to higher levels of pyrethroids with the continued nation-wide distribution of insecticide-treated nets. Here, we provide an update on phenotypic IR in four highly malaria-endemic areas of PNG. IR against deltamethrin, lambda-cyhalothrin, and dichlorodiphenyltrichloroethane was assessed using World Health Organization bioassays...
November 6, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29138624/entomopathogenic-fungi-as-dual-control-agents-against-both-the-pest-myzus-persicae-and-phytopathogen-botrytis-cinerea
#10
Hwi-Geon Yun, Dong-Jun Kim, Won-Seok Gwak, Tae-Young Shin, Soo-Dong Woo
The green peach aphid (Myzus persicae), a plant pest, and gray mold disease, caused by Botrytis cinerea, affect vegetables and fruit crops all over the world. To control this aphid and mold, farmers typically rely on the use of chemical insecticides or fungicides. However, intensive use of these chemicals over many years has led to the development of resistance. To overcome this problem, there is a need to develop alternative control methods to suppress populations of this plant pest and pathogen. Recently, potential roles have been demonstrated for entomopathogenic fungi in endophytism, phytopathogen antagonism, plant growth promotion, and rhizosphere colonization...
September 2017: Mycobiology
https://www.readbyqxmd.com/read/29134741/contemporary-evolution-of-a-lepidopteran-species-heliothis-virescens-in-response-to-modern-agricultural-practices
#11
Megan L Fritz, Alexandra M DeYonke, Alexie Papanicolaou, Stephen Micinski, John Westbrook, Fred Gould
Adaptation to human-induced environmental change has the potential to profoundly influence the genomic architecture of affected species. This is particularly true in agricultural ecosystems, where anthropogenic selection pressure is strong. Heliothis virescens primarily feeds on cotton in its larval stages and US populations have been declining since the widespread planting of transgenic cotton, which endogenously expresses proteins derived from Bacillus thuringiensis (Bt). No physiological adaptation to Bt toxin has been found in the field, so adaptation in this altered environment could involve: 1) shifts in host plant selection mechanisms to avoid cotton, 2) changes in detoxification mechanisms required for cotton-feeding versus feeding on other hosts, or 3) loss of resistance to previously used management practices including insecticides...
November 13, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/29129589/behavior-of-detoxifying-enzymes-of-aedes-aegypti-exposed-to-girgensohnine-alkaloid-analog-and-cymbopogon-flexuosus-essential-oil
#12
Aurora L Carreño Otero, Angela Maria Palacio-Cortés, Mario Antonio Navarro-Silva, Vladimir V Kouznetsov, Jonny E Duque L
Because mosquito control depend on the use of commercial insecticides and resistance has been described in some of them, there is a need to explore new molecules no resistant. In vivo effects of girgensohnine analog 2-(3,4-dimethoxyphenyl)-2-(piperidin-1-yl)acetonitrile DPPA and Cymbopogon flexuosus essential oil CFEO, on the detoxifying enzymes acetylcholinesterase (AChE), glutathione-S-transferase (GST), nonspecific esterases (α- and β-), mixed function oxidases (MFO) and p-NPA esterases were evaluated on a Rockefeller (Rock) and wild Aedes aegypti population from Santander, Colombia (WSant)...
November 10, 2017: Comparative Biochemistry and Physiology. Toxicology & Pharmacology: CBP
https://www.readbyqxmd.com/read/29125254/field-cage-insecticide-resistance-tests-against-culex-quinquefasciatus-say-diptera-culicidae-in-harris-county-texas-u-s-a
#13
Pamela M Stark, Chris L Fredregill, Melissa S Nolan, Mustapha Debboun
The ground adulticiding program in densely populated Harris County has been employed on the basis of virus-positive mosquitoes almost exclusively using the 'rotation of chemicals best practices' stratagem. To evaluate its effectiveness, 15 comparative field cage testing events were conducted from 2011-2015 using seven wild population samples from repeatedly collected locations of Culex quinquefasciatus Say and a laboratory susceptible Sebring strain colony reared to adults. A 3 × 3 plot design was employed for exposure to ultra-low volume applications of malathion and synergized permethrin...
December 2017: Journal of Vector Ecology: Journal of the Society for Vector Ecology
https://www.readbyqxmd.com/read/29116195/resistance-monitoring-and-cross-resistance-role-of-cyp6cw1-between-buprofezin-and-pymetrozine-in-field-populations-of-laodelphax-striatellus-fall%C3%A3-n
#14
Yueliang Zhang, Yangchun Han, Baosheng Liu, Qiong Yang, Huifang Guo, Zewen Liu, Lihua Wang, Jichao Fang
Monitoring resistance and investigating insecticide resistance mechanisms are necessary for controlling the small brown planthopper, Laodelphax striatellus. The susceptibility to four common insecticides of L. striatellus collected from Jiangsu, Anhui, Zhejiang and Jilin provinces of China in 2015 was monitored. The results showed that all field populations remained susceptible to chlorpyrifos and thiamethoxam with resistance ratios (RRs) of 2.3- to 9.5 and 1.6- to 3.3, respectively, while the insects had developed moderate pymetrozine resistance with RRs of 18...
November 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29115954/malaria-vectors-in-the-democratic-republic-of-the-congo-the-mechanisms-that-confer-insecticide-resistance-in-anopheles-gambiae-and-anopheles-funestus
#15
Luisa Nardini, Richard H Hunt, Yael L Dahan-Moss, Nanette Christie, Riann N Christian, Maureen Coetzee, Lizette L Koekemoer
BACKGROUND: The Democratic Republic of the Congo (DRC) is characterized as a holoendemic malaria area with the main vectors being Anopheles funestus and members of the Anopheles gambiae complex. Due to political instability and socio-economic challenges in the region, knowledge of insecticide resistance status and resistance mechanisms in these vectors is limited. Mosquitoes were collected from a mining site in the north-eastern part of the country and, following identification, were subjected to extensive testing for the target-site and biochemical basis of resistance...
November 7, 2017: Malaria Journal
https://www.readbyqxmd.com/read/29111194/synergists-action-of-piperonyl-butoxide-and-s-s-s-tributyl-phosphorotrithioate-on-toxicity-of-carbamate-insecticides-against-blattella-germanica
#16
Alireza Sanei Dehkordi, Yaser Salim Abadi, Hasan Nasirian, Teymour Hazratian, Mohammad Amin Gorouhi, Saideh Yousefi, Azim Paksa
OBJECTIVE: To determine the synergists action of piperonyl butoxide (PBO) and S,S,S-tributyl phosphorotrithioate (DEF) on toxicity of carbamate insecticides against Blattella germanica in Tehran city. METHODS: In the current study, German cockroach strains were collected from several hospitals and dormitories in Tehran. At the beginning, different concentrations of bendiocarb and carbaryl (insecticides belong to carbamate group) were determined by surface contact on a susceptible strain...
October 2017: Asian Pacific Journal of Tropical Medicine
https://www.readbyqxmd.com/read/29110724/quantifying-the-intensity-of-permethrin-insecticide-resistance-in-anopheles-mosquitoes%C3%A2-in-western-kenya
#17
Seline Omondi, Wolfgang Richard Mukabana, Eric Ochomo, Margaret Muchoki, Brigid Kemei, Charles Mbogo, Nabie Bayoh
BACKGROUND: The development and spread of resistance among local vectors to the major classes of insecticides used in Long-Lasting Insecticidal Nets (LLINs) and Indoor Residual Spraying (IRS) poses a major challenge to malaria vector control programs worldwide. The main methods of evaluating insecticide resistance in malaria vectors are the WHO tube bioassay and CDC bottle assays, with their weakness being determination of resistance at a fixed dose for variable populations. The CDC bottle assay using different insecticide dosages has proved applicable in ascertaining the intensity of resistance...
November 6, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/29110722/molecular-markers-for-artemisinin-and-partner-drug-resistance-in-natural-plasmodium-falciparum-populations-following-increased-insecticide-treated-net-coverage-along-the-slope-of-mount-cameroon-cross-sectional-study
#18
Tobias O Apinjoh, Regina N Mugri, Olivo Miotto, Hanesh F Chi, Rolland B Tata, Judith K Anchang-Kimbi, Eleanor M Fon, Delphine A Tangoh, Robert V Nyingchu, Christopher Jacob, Roberto Amato, Abdoulaye Djimde, Dominic Kwiatkowski, Eric A Achidi, Alfred Amambua-Ngwa
BACKGROUND: Drug resistance is one of the greatest challenges of malaria control programmes, with the monitoring of parasite resistance to artemisinins or to Artemisinin Combination Therapy (ACT) partner drugs critical to elimination efforts. Markers of resistance to a wide panel of antimalarials were assessed in natural parasite populations from southwestern Cameroon. METHODS: Individuals with asymptomatic parasitaemia or uncomplicated malaria were enrolled through cross-sectional surveys from May 2013 to March 2014 along the slope of mount Cameroon...
November 6, 2017: Infectious Diseases of Poverty
https://www.readbyqxmd.com/read/29110719/plague-risk-in-vulnerable-community-assessment-of-xenopsylla-cheopis-susceptibility-to-insecticides-in-malagasy-prisons
#19
Adélaïde Miarinjara, Jean Vergain, Jean Marcel Kavaruganda, Minoarisoa Rajerison, Sébastien Boyer
BACKGROUND: Prisons in Madagascar are at high risk of plague outbreak. Occurrence of plague epidemic in prisons can cause significant episode of urban plague through the movement of potentially infected humans, rodents and fleas. Rodent and flea controls are essential in plague prevention, by reducing human contact with plague reservoirs and vectors. Insecticide treatment is the key step available for the control of rat fleas which transmit the disease from infected rodents to human. The implementation of an adapted flea control strategy should rely on the insecticide susceptibility status of the targeted population...
November 7, 2017: Infectious Diseases of Poverty
https://www.readbyqxmd.com/read/29107249/a-chitin-binding-lectin-from-moringa-oleifera-seeds-wsmol-impairs-the-digestive-physiology-of-the-mediterranean-flour-larvae-anagasta-kuehniella
#20
Caio Fernando Ramalho de Oliveira, Maiara Celine de Moura, Thiago Henrique Napoleão, Patrícia Maria Guedes Paiva, Luana Cassandra Breitenbach Barroso Coelho, Maria Lígia Rodrigues Macedo
Biotechnological techniques allow the investigation of alternatives to outdated chemical insecticides for crop protection; some investigations have focused on the identification of molecules tailored from nature for this purpose. We, herein, describe the negative effects of water-soluble lectin from Moringa oleifera seeds (WSMoL) on Anagasta kuehniella development. The chitin-binding lectin, WSMoL, impaired the larval weight gain by 50% and affected the activity of the pest's major digestive enzymes. The commitment of the digestive process became evident after controlled digestion studies, where the capacity of protein digestion was compromised by >90%...
October 2017: Pesticide Biochemistry and Physiology
keyword
keyword
53304
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"