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https://www.readbyqxmd.com/read/28335456/mosquito-traps-an-innovative-environmentally-friendly-technique-to-control-mosquitoes
#1
Brigitte Poulin, Gaëtan Lefebvre, Camille Muranyi-Kovacs, Samuel Hilaire
We tested the use of mosquito traps as an alternative to spraying insecticide in Camargue (France) following the significant impacts observed on the non-target fauna through Bti persistence and trophic perturbations. In a village of 600 inhabitants, 16 Techno Bam traps emitting CO₂ and using octenol lures were set from April to November 2016. Trap performance was estimated at 70% overall based on mosquitoes landing on human bait in areas with and without traps. The reduction of Ochlerotatus caspius and Oc...
March 18, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28334411/first-report-of-mating-disruption-with-an-aggregation-pheromone-a-case-study-with-tetropium-fuscum-coleoptera-cerambycidae
#2
Jon Sweeney, Peter J Silk, Marc Rhainds, Wayne MacKay, Cory Hughes, Kate Van Rooyen, Wayne MacKinnon, Gaetan Leclair, Steve Holmes, Edward G Kettela
Tetropium fuscum (F.), native to Europe and established in Nova Scotia, Canada, since at least 1990, is considered a low-to-moderate threat to spruce (Picea spp.) forests in North America and regulated as a quarantine pest by the Canadian Food Inspection Agency. We tested broadcast applications of the aggregation pheromone racemic (5E)-6,10-dimethyl-5,9-undecadien-2-ol (fuscumol), formulated at 10% concentration in Hercon Bio-Flakes (Hercon International, Emigsville, PA), for efficacy in disrupting T. fuscum mating and suppressing populations...
March 16, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28334370/differences-in-climbing-ability-of-cimex-lectularius-and-cimex-hemipterus-hemiptera-cimicidae
#3
Dae-Yun Kim, Johan Billen, Stephen L Doggett, Chow-Yang Lee
The climbing abilities of two bed bug species, Cimex lectularius L. and Cimex hemipterus (F.), were determined by evaluating their escape rates from smooth surface pitfall traps using four commercial bed bug monitors (Verifi Bed Bug Detector, ClimbUp Insect Interceptor, BlackOut Bed Bug Detector, and SenSci Volcano Bed Bug Detector). All detectors were used in the absence of lures or attractants. Unlike C. lectularius, adult C. hemipterus were able to escape from all traps. On the other hand, no or a low number nymphs of both species escaped, depending on the evaluated traps...
March 15, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28334265/evaluation-of-malaise-and-yellow-pan-trap-performance-to-assess-velvet-ant-hymenoptera-mutillidae-diversity-in-a-neotropical-savanna
#4
C R Vieira, C Waichert, K A Williams, J P Pitts
Given the global biodiversity crisis, it is crucial to identify methods best suited for conducting inventories. We evaluated the relative merits of Malaise traps (MT) and ground-level yellow pan traps (YPT) to sample male velvet ants (Hymenoptera: Mutillidae) in a Neotropical savanna biodiversity hotspot. We compared richness, number of captures, evenness, composition, and body size of male velvet ants (Hymenoptera: Mutillidae) sampled with both methods in four sites at Parque Nacional da Chapada dos Veadeiros, central Brazil, during 19 d...
March 6, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/28334250/the-use-of-f2-screening-for-detection-of-resistance-to-emamectin-benzoate-chlorantraniliprole-and-indoxacarb-in-australian-populations-of-helicoverpa-armigera-lepidoptera-noctuidae
#5
L J Bird, L J Drynan, P W Walker
The ability to effectively detect changes in susceptibility to insecticides is an integral component of resistance management strategies and is highly dependent upon precision of methods deployed. Between 2013 and 2016, F2 screens were performed for detection of resistance alleles in Helicoverpa armigera (Hübner) to emamectin benzoate, chlorantraniliprole, and indoxacarb in major cropping regions of eastern Australia. Resistance to emamectin benzoate was not detected. There were low but detectable levels of survival at discriminating concentrations of chlorantraniliprole and indoxacarb...
March 3, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28334163/deltamethrin-incorporated-nets-as-an-integrated-pest-management-tool-for-the-invasive-halyomorpha-halys-hemiptera-pentatomidae
#6
T P Kuhar, B D Short, G Krawczyk, T C Leskey
Long-lasting insecticide nets (LLINs), which have insecticide incorporated within the fibers, have been widely used for control of malaria and other insect-vectored diseases. Only recently have researchers begun exploring their use for control of agricultural pests. In this study, we evaluated the toxicity of a deltamethrin-incorporated LLIN, ZeroFly (Vestergaard-Frandsen, Washington, DC) for control of the brown marmorated stink bug, Halyomorpha halys (Stål). In the lab, exposure to the ZeroFly net for 10 s resulted in >90% mortality of H...
March 6, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28334153/efficacy-of-insect-growth-regulators-and-diamide-insecticides-for-control-of-stem-borers-lepidoptera-crambidae-in-sugarcane
#7
B E Wilson, M T VanWeelden, J M Beuzelin, T E Reagan, J A Prado
Field experiments assessed control of the stem borers, Diatraea saccharalis (F.) and Eoreuma loftini (Dyar), in sugarcane (Saccharum spp.) with selected insect growth regulators and diamide insecticides. Tebufenozide, novaluron, chlorantraniliprole, and flubendiamide were evaluated for D. saccharalis control in four field experiments in Louisiana between 2009 and 2014. Aerial application of the same insecticides was evaluated for control of E. loftini in commercial sugarcane fields in southern Texas in 2012 and 2015...
February 22, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28325982/long-term-seasonal-dominance-of-the-wasp-trihapsis-polita-townes-hymenoptera-ichneumonidae-in-the-brazilian-atlantic-forest
#8
Bernardo F Santos, Alexandre P Aguiar, Anazélia M Tedesco, Julio C R Fontenelle
BACKGROUND: The temporal dynamics of insect populations in tropical environments is highly complex and poorly known. Long-term seasonality studies are scarce, and particularly so for ichneumonid wasps (Hymenoptera Ichneumonidae). This study represents an effort to elucidate aspects of seasonality and forest succession in the Brazilian Atlantic Forest. NEW INFORMATION: We report on the seasonal and successional dominance of the ichneumonid wasp Trihapsis polita (Cryptinae)...
2017: Biodiversity Data Journal
https://www.readbyqxmd.com/read/28284794/natural-aversive-learning-in-tetramorium-ants-reveals-ability-to-form-a-generalizable-memory-of-predators-pit-traps
#9
Karen L Hollis, Kelsey McNew, Talisa Sosa, Felicia A Harrsch, Elise Nowbahari
Many species of ants fall prey to pit-digging larval antlions (Myrmeleon spp.), extremely sedentary predators that wait, nearly motionless at the bottom of their pit traps, for prey to stumble inside. Previous research, both in the field and laboratory, has demonstrated a remarkable ability of these ants to rescue trapped nestmates, thus sabotaging antlions' attempts to capture them. Here we show that pavement ants, Tetramorium sp. E, an invasive species and a major threat to biodiversity, possess yet another, more effective, antipredator strategy, namely the ability to learn to avoid antlion traps following a single successful escape from a pit...
March 8, 2017: Behavioural Processes
https://www.readbyqxmd.com/read/28279191/effectiveness-of-autodissemination-stations-containing-pyriproxyfen-in-reducing-immature-aedes-albopictus-populations
#10
Isik Unlu, Devi S Suman, Yi Wang, Kim Klingler, Ary Faraji, Randy Gaugler
BACKGROUND: Aedes albopictus, the Asian tiger mosquito, is an aggressive, highly anthropophilic, day-biting mosquito with an expanding geographic range. Suppression of Ae. albopictus is difficult because of the abundance and prevalence of larval habitats within peridomestic environments, particularly cryptic habitats such as corrugated extension spouts, fence post openings, discarded food containers, etc. Because of the challenges of eliminating or treating larval habitats of this species, we tested an autodissemination concept to contaminate these habitats with the insect growth regulator pyriproxyfen...
March 9, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28278171/mosqtent-an-individual-portable-protective-double-chamber-mosquito-trap-for-anthropophilic-mosquitoes
#11
José Bento Pereira Lima, Allan Kardec Ribeiro Galardo, Leonardo Soares Bastos, Arthur Weiss da Silva Lima, Maria Goreti Rosa-Freitas
Here, we describe the development of the MosqTent, an innovative double-chamber mosquito trap in which a human being attracts mosquitoes while is protected from being bitten within the inner chamber of the trap, while mosquitoes are lured to enter an outer chamber where they are trapped. The MosqTent previously collected an average of 3,000 anophelines/man-hour compared to 240 anophelines/man-hour for the human landing catch (HLC), thereby providing high numbers of human host-seeking mosquitoes while protecting the collector from mosquito bites...
March 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28273908/specialized-adaptations-for-springtail-predation-in-mesozoic-beetles
#12
Zi-Wei Yin, Chen-Yang Cai, Di-Ying Huang, Li-Zhen Li
Insects exhibit a variety of morphological specializations specific to particular behaviors, and these permit the reconstruction of palaeobiological traits. Despite the critical importance of predator-prey strategies in insect evolution, the appearance of particular aspects of predation are often difficult to determine from the fossil record of hexapods. Here we report the discovery of highly specialized, mid-Cretaceous ant-like stone beetles (Staphylinidae: Scydmaeninae) displaying morphological modifications unknown among living scydmaenids and associated with predation on springtails (Collembola), a widespread and abundant group of significantly greater geological age...
December 2017: Scientific Reports
https://www.readbyqxmd.com/read/28267461/quantitative-pteridine-fluorescence-analysis-a-possible-age-grading-technique-for-the-adult-stages-of-the-blow-fly-calliphora-vicina-diptera-calliphoridae
#13
Victoria Bernhardt, Laura Hannig, Ronja Kinast, Marcel A Verhoff, Florian Rothweiler, Richard Zehner, Jens Amendt
Age estimation of adult flies could extend the possible window of time for calculating the minimal postmortem interval (PMImin) by means of entomological methods. Currently, this is done by estimating the time required by necrophagous Diptera to reach certain juvenile developmental landmarks, and the method only works until the end of metamorphosis and emergence of the adult fly. Particularly at indoor crime scenes, being able to estimate the age of trapped adult flies would be an important tool with which to extend the calculable PMI beyond the developmental period...
March 4, 2017: Journal of Insect Physiology
https://www.readbyqxmd.com/read/28251439/plant-volatiles-increase-sex-pheromone-attraction-of-holotrichia-parallela-coleoptera-scarabaeoidea
#14
Qian Ju, Xiao-Qiang Guo, Xiao Li, Xiao-Jing Jiang, Xiang-Guo Jiang, Wan-Li Ni, Ming-Jing Qu
Holotrichia parallela (Coleoptera: Scarabaeoidea) is a notorious pest of many crops. To improve the effectiveness of its female-produced sex pheromone (L-isoleucine methyl ester:(R)-(-)-linalool = 6:1), 14 plant volatiles, including dodecanoic acid, dodecanal, farnesol, α-farnesene, (Z)-3-hexen-1-ol, (E)-2-hexen-1-ol, (Z)-3-hexenyl acetate, (E)-2-hexenyl acetate, (R)-(+)-limonene, α-phellandrene, α-pinene, ocimene, methyl benzoate, and benzaldehyde, were individually evaluated using electroantennography and olfactometer assays...
March 2, 2017: Journal of Chemical Ecology
https://www.readbyqxmd.com/read/28228921/scuttle-flies-diptera-phoridae-inhabiting-rabbit-carcasses-confined-to-plastic-waste-bins-in-malaysia-include-new-records-and-an-undescribed-species
#15
Raja M Zuha, See Huong-Wen, R Henry L Disney, Baharudin Omar
Scuttle flies (Diptera: Phoridae) are small-sized insects of forensic importance. They are well known for diversified species and habitats, but in the context of forensic entomology, scuttle flies' inhabitance of corpses remains inadequately explored. With recent reports indicating the existence of more scuttle fly species possibly inhabiting these environments, a decomposition study using animal carcasses in enclosed environments was conducted. The aim was to record the occurrence of scuttle flies on rabbit carcasses placed in sealed plastic waste bins for a 40-day period...
January 2017: Tropical Life Sciences Research
https://www.readbyqxmd.com/read/28222708/wild-pollinators-enhance-oilseed-rape-yield-in-small-holder-farming-systems-in-china
#16
Yi Zou, Haijun Xiao, Felix J J A Bianchi, Frank Jauker, Shudong Luo, Wopke van der Werf
BACKGROUND: Insect pollinators play an important role in crop pollination, but the relative contribution of wild pollinators and honey bees to pollination is currently under debate. There is virtually no information available on the strength of pollination services and the identity of pollination service providers from Asian smallholder farming systems, where fields are small, and variation among fields is high. We established 18 winter oilseed rape (Brassica napus L.) fields along a large geographical gradient in Jiangxi province in China...
February 21, 2017: BMC Ecology
https://www.readbyqxmd.com/read/28202094/impact-of-routine-bacillus-thuringiensis-israelensis-bti-treatment-on-the-availability-of-flying-insects-as-prey-for-aerial-feeding-predators
#17
Ute Timmermann, Norbert Becker
Since 1980, mosquito breeding habitats in the Upper Rhine Valley were routinely treated with Bacillus thuringiensis var. israelensis (Bti). Bti is considered to significantly reduce the number of mosquitoes, and - especially when used in higher dosages - to be toxic to other Nematocera species, e.g. Chironomidae, which could be food sources for aerial feeding predators. To investigate direct and indirect effects of routine Bti treatment on food sources for aerial feeding predators, the availability of flying insects in treated and untreated areas was compared...
February 16, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/28185606/measuring-population-fluctuation-of-jatropha-stem-borer-cophes-notaticeps-marshall-in-the-brazilian-cerrado-using-a-new-trap
#18
C M Oliveira, C N Silva, M R Frizzas, A C Dianese
This study aimed to monitor the population fluctuation of Cophes notaticeps (Marshall) (Coleoptera: Curculionidae) in a jatropha (Jatropha curcas L.) plantation in the Federal District, Brazil, through the use of a new trap, combined with different attractive lures and trap colors. The study was conducted at Embrapa Cerrados (Planaltina/DF) in a field trial with 720 plants. The new trap, named CPAC16, was made with PVC pipes (100 mm in diameter) of about 40 cm in length, with a window (8 × 10 cm2) in its center to enable insect access...
February 10, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/28185604/what-does-the-southern-brazilian-coastal-plain-tell-about-its-diversity-syrphidae-diptera-as-a-model
#19
F D Kirst, L Marinoni, R F Krüger
The natural areas of the Coastal Plain of Rio Grande do Sul (CPRS) have suffered fragmentation due to anthropic action. The faunal surveys offer a low-cost method to quickly evaluate environmental alterations, and Syrphidae flies are often used as models in this kind of study. We aimed to ascertain the diversity of Syrphidae in the South region of Brazil by estimating its species' richness, and to use this data to identify new areas for conservation. In this survey Malaise traps were installed for 8 days in the CPRS, which was divided into five regions...
February 10, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/28178183/enhanced-trapping-of-yellowjacket-wasps-hymenoptera-vespidae-via-spatial-partitioning-of-attractants
#20
Dangsheng Liang, Jose E Pietri
Several yellowjacket species are important pests in both their native habitat and in areas where they are invasive. Traps that contain one or more chemical attractants to lure insects inside are commonly used to combat these yellowjackets in urban environments. Usually, attractants are placed within the trap and combined indiscriminately, though little is known about how this design influences trap attractiveness or efficacy. Here, using the common attractant heptyl butyrate in combination with chicken extract, we demonstrate that spatial partitioning of attractants results in increased capture of the western yellowjacket Vespula pensylvanica-a widespread pestiferous species...
February 6, 2017: Insects
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