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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
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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
https://www.readbyqxmd.com/read/28135281/dispersal-of-male-and-female-culex-quinquefasciatus-and-aedes-albopictus-mosquitoes-using-stable-isotope-enrichment
#7
Matthew C I Medeiros, Emily C Boothe, E Brendan Roark, Gabriel L Hamer
The dispersal patterns of mosquito vectors are important drivers of vector-borne infectious disease dynamics and understanding movement patterns is pivotal to devise successful intervention strategies. Here, we investigate the dispersal patterns of two globally important mosquito vectors, Aedes albopictus and Culex quinquefasciatus, by marking naturally-occurring larvae with stable isotopes (13C or 15N). Marked individuals were captured with 32 CDC light trap, 32 gravid trap, and 16 BG Sentinel at different locations within two-kilometer radii of six larval habitats enriched with either 13C or 15N...
January 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28122788/causes-of-rapid-carrion-beetle-coleoptera-silphidae-death-in-flooded-pitfall-traps-response-to-soil-flooding-immersion-tolerance-and-swimming-behavior
#8
Michael C Cavallaro, M Christopher Barnhart, W Wyatt Hoback
Terrestrial insects in water can often delay or escape drowning by floating and swimming. However, we observed that flooding of pitfall traps baited with rotting carrion results in high overnight mortality of captured beetles and reasoned that this risk may be enhanced by microbial respiration. By assessing carrion beetle (Coleoptera: Silphidae) response to flooding, tolerance to immersion, and swimming behavior, we offer insights to this cause of death and beetle behavioral physiology. Response of buried Nicrophorus orbicollis Say to soil flooding resulted in beetles moving to the soil surface...
January 24, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/28095875/assessment-of-synthetic-floral-based-attractants-and-sugar-baits-to-capture-male-and-female-aedes-aegypti-diptera-culicidae
#9
Kara Fikrig, Brian J Johnson, Durland Fish, Scott A Ritchie
BACKGROUND: The viruses transmitted by Aedes aegypti, including dengue and Zika viruses, are rapidly expanding in geographic range and as a threat to public health. In response, control programs are increasingly turning to the use of sterile insect techniques resulting in a need to trap male Ae. aegypti to monitor the efficacy of the intervention. However, there is a lack of effective and cheap methods for trapping males. Thus, we attempted to exploit the physiological need to obtain energy from sugar feeding in order to passively capture male and female Ae...
January 17, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28075346/automated-surveillance-of-fruit-flies
#10
Ilyas Potamitis, Iraklis Rigakis, Nicolaos-Alexandros Tatlas
Insects of the Diptera order of the Tephritidae family cause costly, annual crop losses worldwide. Monitoring traps are important components of integrated pest management programs used against fruit flies. Here we report the modification of typical, low-cost plastic traps for fruit flies by adding the necessary optoelectronic sensors to monitor the entrance of the trap in order to detect, time-stamp, GPS tag, and identify the species of incoming insects from the optoacoustic spectrum analysis of their wingbeat...
January 8, 2017: Sensors
https://www.readbyqxmd.com/read/28073979/effect-of-the-presence-of-live-or-dead-insects-on-subsequent-captures-of-six-stored-product-beetle-species-the-relative-species-matters
#11
Christos G Athanassiou, Nickolas G Kavallieratos, James F Campbell
In trapping programs prior capture of individuals of the same or different species may influence subsequent attractiveness of the trap. To evaluate this process with stored-product insects, the effect of the presence of dead or alive adults in traps on the behavioral responses of six stored-product insect species, Tribolium confusum Jacquelin du Val, T. castaneum (Herbst) (Coleoptera: Tenebrionidae), Sitophilus oryzae (L.), S. granarius (L.) (Coleoptera: Curculionidae), Oryzaephilus surinamensis (L.) and O...
January 10, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28071812/recovery-of-aquatic-insect-mediated-methylmercury-flux-from-ponds-following-drying-disturbance
#12
Matthew M Chumchal, Ray W Drenner, Frank M Greenhill, James H Kennedy, Ashlyn E Courville, Charlie A A Gober, Luke O Lossau
Small ponds exist across a permanence gradient, and pond permanence is hypothesized to be a primary determinant of insect community structure and insect-mediated methylmercury (MeHg) flux from ponds to the surrounding terrestrial landscape. The present study describes the first experiment examining the recovery of insect-mediated MeHg flux following a drying disturbance that converted permanent ponds with insectivorous fish to semipermanent ponds without fish. Floating emergence traps were used to collect emergent insects for 10 wk in the spring and summer from 5 ponds with fish (permanent) and 5 ponds that were drained to remove fish, dried, and refilled with water (semipermanent)...
January 10, 2017: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/28059148/enhancement-of-mosquito-trapping-efficiency-by-using-pulse-width-modulated-light-emitting-diodes
#13
Yu-Nan Liu, Yu-Jen Liu, Yi-Chian Chen, Hsin-Yi Ma, Hsiao-Yi Lee
In this study, a light-driving bug zapper is presented for well controlling the diseases brought by insects, such as mosquitoes. In order to have the device efficient to trap the insect pests in off-grid areas, pulse width modulated light emitting diodes (PWM-LED) combined with a solar power module are proposed and implemented. With specific PWM electric signals to drive the LED, it is found that no matter what the ability of catching insects or the consumed power efficiency can be enhanced thus. It is demonstrated that 40% of the UV LED consumed power and 25...
January 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28042105/a-comparison-of-trapping-techniques-coleoptera-carabidae-buprestidae-cerambycidae-and-curculionoidea-excluding-scolytinae
#14
Michael J Skvarla, Ashley P G Dowling
Beetles (Coleoptera) are a charismatic group of insects targeted by collectors and often used in biodiversity surveys. As part of a larger project, we surveyed a small (4 hectare) plot in the Boston Mountains of Arkansas using 70 traps of 12 trap types and Berlese-Tullgren extraction of leaf litter and identified all Buprestidae, Carabidae, Cerambycidae, and Curculionoidea (Anthribidae, Attelabidae, Brachyceridae, Brentidae, and Curculionidae excluding Scolytinae) to species. This resulted in the collection of 7,973 specimens representing 242 species arranged in 8 families...
January 2017: Journal of Insect Science
https://www.readbyqxmd.com/read/28028105/flight-period-of-mountain-pine-beetle-coleoptera-curculionidae-in-its-recently-expanded-range
#15
K P Bleiker, B H Van Hezewijk
The ability to predict key phenological events, such as the timing of flight periods, is useful for the monitoring and management of insect pests. We used empirical data to describe the flight period of mountain pine beetle, Dendroctonus ponderosae Hopkins, in its recently expanded range east of the Rocky Mountains in Canada and developed a degree-day model based on the number of trapped beetles. Data were collected over four degrees of latitude and six years. The main flight period, when the middle 70% of the total number of beetles were caught, started during the second or third week of July, lasted 26 d, and peaked within 2 wk of starting...
December 2016: Environmental Entomology
https://www.readbyqxmd.com/read/28028095/behavioral-responses-of-drosophila-suzukii-diptera-drosophilidae-to-visual-stimuli-under-laboratory-semifield-and-field-conditions
#16
Kevin B Rice, Brent D Short, Sharon K Jones, Tracy C Leskey
Drosophila suzukii Matsumura (Diptera: Drosophilidae) is an invasive pest in North America and Europe that attacks soft-skinned ripening fruit such as raspberries, blackberries, and blueberries. Little is known regarding the specific cues D. suzukii utilizes to locate and select host fruit, and inconsistencies in trap performance indicate the need for the development of improved monitoring and management techniques for this insect. Our studies focused on identifying attractive visual cues for adult D. suzukii and incorporating these cues into a potential attract-and-kill tactic for D...
December 2016: Environmental Entomology
https://www.readbyqxmd.com/read/28025314/cucumber-lure-trapping-of-zeugodacus-cucurbitae-diptera-tephritidae-in-hawaii-and-taiwan-longevity-and-nontargets-captures
#17
Eric B Jang, Lori A F N Carvalho, Chung-Chien Chen, Matthew S Siderhurst
The melon fly, Zeugodacus cucurbitae (Coquillett), is a serious pest of tropical horticulture, causing damage to cucurbits, tree fruits, and fruiting vegetables. Melon flies are especially attractive to freshly sliced cucumber, and this has led to the identification of a nine-compound kairomone lure that can be used to trap both female and male flies. In this study, a seven-compound lure, containing (Z)-6-nonenal, (Z)-6-nonen-1-ol, 1-octen-3-ol, (E,Z)-2,6-nonadienal, (E)-2-nonenal, hexanal, and 1-hexanol, was formulated into PVC plugs (100 or 300 mg/plug) for field testing in wet traps...
December 26, 2016: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28011735/occurrence-of-amblyomma-americanum-acari-ixodidae-and-human-infection-with-ehrlichia-chaffeensis-in-wisconsin-2008-2015
#18
Megan Christenson, Xia Lee, Scott Larson, Diep Hoang Johnson, Julia Jensen, Megan Meller, Susan Paskewitz
Because of the increasing incidence of human ehrlichiosis in Wisconsin, we assessed reports of human infections by Ehrlichia chaffeensis and the distribution of its vector, the lone star tick (Amblyomma americanum (L.)). From 2008 through 2015, 158 probable and confirmed human cases of E. chaffeensis infections were reported to the Wisconsin Department of Health Services. Five cases without travel history outside of Wisconsin were confirmed as E. chaffeensis by polymerase chain reaction. Surveillance for the vector occurred from 2008 through 2015 and was based on active and passive methods, including examination of white-tailed deer, collections from live-trapped small mammals, submissions of ticks removed from wild and domestic animals through the Wisconsin Surveillance of Animals for Ticks (SWAT) program, digital or physical submissions by the public to the University of Wisconsin Insect Diagnostic or Medical Entomology laboratories, and active tick dragging...
December 23, 2016: Journal of Medical Entomology
https://www.readbyqxmd.com/read/28011679/seasonal-population-dynamics-of-thrips-thysanoptera-in-wisconsin-and-iowa-soybean-fields
#19
Chris Bloomingdale, Melissa D Irizarry, Russell L Groves, Daren S Mueller, Damon L Smith
With the discovery of Neohydatothrips variabilis (Beach) as a vector of Soybean vein necrosis virus (Family Bunyaviridae Genus Tospovirus), a relatively new pathogen of soybean, a multiyear study was initiated in Wisconsin (2013 and 2014) and Iowa (2014 and 2015) to determine the phenology and species composition of thrips in soybean fields. Yellow sticky card traps were used to sample thrips at regular intervals in five counties within each state's primary soybean-growing region. The assemblage of species present in Wisconsin was determined in all site-years, revealing that N...
December 23, 2016: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28007833/insect-resistance-management-in-bt-maize-wild-host-plants-of-stem-borers-do-not-serve-as-refuges-in-africa
#20
J Van den Berg
Resistance evolution by target pests threatens the sustainability of Bt maize in Africa where insect resistance management (IRM) strategies are faced by unique challenges. The assumptions, on which current IRM strategies for stem borers are based, are not all valid for African maize stem borer species. The high dose-refuge strategy which is used to delay resistance evolution relies heavily on the presence of appropriate refuges (non-Bt plants) where pests are not under selection pressure and where sufficient numbers of Bt-susceptible individuals are produced to mate with possible survivors on the Bt maize crop...
December 22, 2016: Journal of Economic Entomology
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