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Environmental Entomology

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https://www.readbyqxmd.com/read/28679170/evidence-for-substrate-influence-on-artificial-substrate-invertebrate-communities
#1
Iain D Phillips, Kate S Prestie
Cobble baskets are frequently used as a tool to measure differences in benthic macroinvertebrate communities between waterbodies; however, underlying differences in substrate type may influence the resultant colonization of baskets, misrepresenting communities. This study tests the hypothesis that cobble basket placement influences the resulting benthic macroinvertebrate community. Cobble basket arrays (n = 4) were deployed in Dog Lake, Saskatchewan, in 2011 (97 d) and 2012 (95 d) on cobble habitats and soft or sandy substrates ∼100 m apart...
June 29, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/28595338/influence-of-temperature-on-the-reproductive-and-developmental-biology-of-ontsira-mellipes-hymenoptera-braconidae-implications-for-biological-control-of-the-asian-longhorned-beetle-coleoptera-cerambycidae
#2
Julian R Golec, Jian J Duan, Judith Hough-Goldstein
Ontsira mellipes Ashmead (Hymenoptera: Braconidae) is a North American parasitoid species that develops on the invasive pest, Anoplophora glabripennis (Moltschulsky) (Coleoptera: Cerambycidae), under laboratory conditions and is currently being considered as a potential new-association biocontrol agent. To develop mass-rearing protocols and field-release strategies for this parasitoid, information on its reproductive biology in relation to temperature is needed. We determined the effect of temperature (10, 15, 20, 25, and 30 °C) on development, survivorship, and sex ratio, and its effect on the longevity, fecundity, and host attack rates (parasitism) of adults...
June 8, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/28595288/does-resistance-to-buprofezin-improve-heat-and-cold-tolerance-of-laodelphax-striatellus-hemiptera-delphacidae
#3
Yongteng Li, Yueliang Zhang, Xiangdong Liu, Huifang Guo
There is ample evidence that insecticide resistance causes fitness costs and benefits in pests, while the impact of insecticide resistance on thermotolerance of pests is mostly unclear. The Laodelphax striatellus (Fallén), is an important rice insect pest, which has developed resistance to buprofezin in China. Here, we investigated differences in heat tolerance and cold tolerance among L. striatellus lines with variable buprofezin resistance. The lethal time for 50% of the individuals to die (LT50) at 40 °C increased with an increase in buprofezin resistance level, whereas both the survival rate under -22 °C and the supercooling point of planthoppers did not differ significantly between resistant and susceptible strains...
June 8, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/28595271/oviposition-preference-and-survival-of-the-mexican-rice-borer-lepidoptera-crambidae-in-bioenergy-and-conventional-sugarcane-and-sorghum
#4
M T VanWeelden, B E Wilson, J M Beuzelin, T E Reagan, M O Way
Oviposition preference and host suitability of the Mexican rice borer, Eoreuma loftini (Dyar) (Lepidoptera: Crambidae), on bioenergy and conventional cultivars of sugarcane, Saccharum spp., and sorghum, Sorghum spp., were examined in a series of greenhouse experiments. Two energycane cultivars, two sugarcane cultivars, two high-biomass sorghum cultivars, and one sweet sorghum cultivar were assessed at two phenological stages (immature and mature). Mature plants possessed greater availability of dry leaf material compared with immature plants, and all E...
June 8, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/28591810/hessian-fly-diptera-cecidomyiidae-attraction-to-different-wavelengths-and-intensities-of-light-emitting-diodes-in-the-laboratory
#5
Ryan B Schmid, Darren Snyder, Lee W Cohnstaedt, Brian P McCornack
Monitoring of Hessian fly, Mayetiola destructor (Say) (Diptera: Cecidomyiidae), populations is important for targeted management methods. Also, effectiveness of monitoring efforts is critical to surveillance efforts in regions of the world without this pest. Current Hessian fly monitoring traps rely purely on a single attractant, the female sex pheromone, which is ineffective for monitoring females in the population. Our objective was to examine another attractant targeting vision of both males and females...
June 7, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/28591774/host-plants-of-the-wheat-stem-sawfly-hymenoptera-cephidae
#6
Darren M Cockrell, Robert J Griffin-Nolan, Tatyana A Rand, Nuha Altilmisani, Paul J Ode, Frank Peairs
Wheat stem sawfly (Cephus cinctus Norton) is a pest of economic importance across much of the wheat (Triticum aestivum L.)-growing areas of the western Great Plains of North America as well as an ecologically important insect owing to its wide range of grass hosts. Little research has been published regarding the noncultivated native and invasive grasses attacked by this insect. Knowledge of the complete host range of C. cinctus can inform future research about potential new sources of genetic resistance, improve understanding of the biology and spread of natural enemies, and better define this insect's role in grassland and agricultural systems...
June 7, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/28575300/the-effects-of-salinity-on-the-herbivorous-crop-pest-tetranychus-urticae-trombidiformes-tetranychidae-on-soybean-and-corn
#7
Jaclyn L Eichele-Nelson, Abbey F Wick, Thomas M DeSutter, Jason P Harmon
Many environmental factors, including soil characteristics, are critical for plants, herbivorous arthropods, and their interactions. Despite increasing evidence that soil salinity drastically impacts plants, little is known about how salinity affects the herbivorous arthropod pests feeding on those plants. We investigated how soil salinity affects the twospotted spider mite (Tetranychus urticae Koch) feeding on corn (Zea mays L.) and soybean (Glycine max L.). We performed two greenhouse studies, one focusing on the impact of salinity on individual mite fecundity over a period of 3 d and the other focusing on population growth of T...
June 1, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/28575202/evaluation-of-food-based-attractants-for-drosophila-suzukii-diptera-drosophilidae
#8
Juan Huang, Larry Gut, Matthew Grieshop
The Drosophila suzukii (Matsumura) (Diptera: Drosophilidae) is a highly invasive species attacking a wide range of ripening soft-skinned fruits. A series of laboratory choice tests were conducted to determine whether different levels of rice vinegar affected attraction of Merlot wine to D. suzukii, as well as to compare attractiveness of two common fermentation food baits: wine-vinegar and yeast-sugar water mixtures. The relative attraction of various combinations was used to develop a bait whose effectiveness was tested in the field...
June 1, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/28472419/the-distribution-of-cicadellinae-leafhoppers-and-other-auchenorrhyncha-on-coffee-and-citrus-in-puerto-rico
#9
Brent V Brodbeck, Peter C Andersen, Steve Oden, Russell F Mizell, Stuart H McKamey, Mildred Zapata
: Caribovia coffeacola, Cicadellinae, coffee, Xylella fastidiosa.
June 1, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/28472369/using-publicly-available-data-to-quantify-plant-pollinator-interactions-and-evaluate-conservation-seeding-mixes-in-the-northern-great-plains
#10
C R V Otto, S O'Dell, R B Bryant, N H Euliss, R M Bush, M D Smart
Concern over declining pollinators has led to multiple conservation initiatives for improving forage for bees in agroecosystems. Using data available through the Pollinator Library (npwrc.usgs.gov/pollinator/), we summarize plant-pollinator interaction data collected from 2012-2015 on lands managed by the U.S. Fish and Wildlife Service and private lands enrolled in U.S. Department of Agriculture conservation programs in eastern North Dakota (ND). Furthermore, we demonstrate how plant-pollinator interaction data from the Pollinator Library and seed cost information can be used to evaluate hypothetical seeding mixes for pollinator habitat enhancements...
June 1, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/28472267/the-influence-of-elevated-co2-concentration-on-the-fitness-traits-of-frankliniella-occidentalis-and-frankliniella-intonsa-thysanoptera-thripidae
#11
He ShuQi, Lin Ying, Qian Lei, Li ZhiHua, Xi Chao, Yang Lu, Gui FuRong
Development and fecundity were investigated in an invasive alien thrips species, Frankliniella occidentalis (Pergande), and a related native species, Frankliniella intonsa (Trybom), under high CO2 concentration. Results show that the two thrips species reacted differently toward elevated CO2 concentration. Developmental duration decreased significantly (11.93%) in F. occidentalis at the CO2 concentration of 800 µl/liter; survival rate of all stages also significantly increased (e.g., survival rate of first instar increased 17...
June 1, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/28460006/impact-of-agroecological-infrastructures-on-the-dynamics-of-dysaphis-plantaginea-hemiptera-aphididae-and-its-natural-enemies-in-apple-orchards-in-northwestern-france
#12
Laurence Albert, Pierre Franck, Yann Gilles, Manuel Plantegenest
Apple orchard production is facing new environmental and societal challenges, resulting, in particular, in strong pressure to reduce pesticide use. Cider-apple production, for which the perfect visual aspect of fruits is not a marketability imperative, offers good opportunities to study production systems that are developing new agronomic strategies, which could be subsequently extended to all apple-production types. Agroecological infrastructures play an important role in providing shelter, food resources, or reproduction habitats to many arthropods...
June 1, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/28459960/diversity-of-platygastridae-in-leaf-litter-and-understory-layers-of-tropical-rainforests-of-the-western-ghats-biodiversity-hotspot-india
#13
COMPARATIVE STUDY
K Manoj, T P Rajesh, U Prashanth Ballullaya, K M Meharabi, V K Shibil, K Rajmohana, Palatty Allesh Sinu
Platygastridae is the third largest family of parasitic Hymenoptera in the world. It includes important egg and larval parasitoids of insects and spiders. Therefore, Platygastridae is functionally important in maintaining the stability of tropical rainforests and agroecosystems. Although the diversity of Platygastridae is relatively well-known in agroecosystems, we know little about their diversity in tropical rainforests, and particularly about that of the leaf litter layer. Here, we address the importance of monitoring Platygastridae in tropical rainforests, using data from the relic primary forests of the sacred groves of the Western Ghats...
June 1, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/28459955/flight-capacities-and-diurnal-flight-patterns-of-the-ambrosia-beetles-xyleborus-glabratus-and-monarthrum-mali-coleoptera-curculionidae
#14
Meeja Seo, Xavier Martini, Monique J Rivera, Lukasz L Stelinski
We compared the flight activity of Xyleborus glabratus Eichhoff, vector and symbiont of the causal agent of laurel wilt disease (Raffaelea lauricola), with a native species Monarthrum mali (Fitch) using flight mills. Flight mills were operated either for 24 h or for three 3-h time intervals. During the 3-h interval experiment, the shortest time to flight initiation for X. glabratus occurred at 1600-1900 hours. The average flight time and total flying distance during 1600-2100 hours were also higher than those quantified during the other two recording times investigated...
June 1, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/28444212/numerical-response-and-impact-of-laricobius-nigrinus-coleoptera-derodontidae-on-adelges-tsugae-hemiptera-adelgidae-in-their-native-range
#15
D L Mausel, L T Kok, S M Salom
To determine if key attributes for a successful biological control agent are possessed by the predator, Laricobius nigrinus Fender, field studies were conducted in its native range of Seattle, WA. The relationship between adult and immature L. nigrinus abundance to different densities of its prey, Adelges tsugae Annand, were determined. In a second study, predator and prey densities, and survivorship of each sistens A. tsugae stage were determined to gauge the impact of predation. The predator strongly aggregated and increased its reproduction when prey density increased, the two mechanisms of a numerical response...
June 1, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/28430898/plant-water-stress-affects-interactions-between-an-invasive-and-a-naturalized-aphid-species-on-cereal-crops
#16
N E Foote, T S Davis, D W Crowder, N A Bosque-Pérez, S D Eigenbrode
In cereal cropping systems of the Pacific Northwestern United States (PNW), climate change is projected to increase the frequency of drought during summer months, which could increase water stress for crop plants. Yet, it remains uncertain how interactions between herbivore species are affected by drought stress. Here, interactions between two cereal aphids present in PNW cereal systems, Metopolophium festucae (Theobald) subsp. cerealium (a newly invasive species) and Rhopalosiphum padi L. (a naturalized species), were tested relative to wheat water stress...
June 1, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/28430893/congeneric-predaceous-diving-beetle-species-fail-to-segregate-in-a-floodplain-system-a-case-of-amplified-sympatry
#17
Courtney Holt McDaniel, Joseph V McHugh, Darold P Batzer
Coexistence of closely related species has long been a focus of biologists in their efforts to explain mechanisms that drive community assembly. Dytiscidae (predaceous diving beetles) are a group that shows a particularly high affinity for sympatry despite their relatedness. Our objective was to investigate the degree of overlap among Neoporus (Guignot) species (Coleoptera: Dytiscidae) in floodplains of the southeastern United States. We sampled two floodplain habitats (permanent oxbow lakes and temporarily flooded pools) of the Altamaha River (Georgia, USA) for Neoporus species over three years...
June 1, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/28419344/a-place-to-grow-host-choice-and-larval-performance-of-microplitis-similis-hymenoptera-braconidae-in-the-host-spodoptera-litura-lepidoptera-noctuidae
#18
Xu-Yang Chen, R J Hopkins, Yi-Pei Zhao, Guo-Hua Huang
Host selection is a key stage in the lifecycle of parasitoids, and is critical to both their function in control and to the maintenance of their population. The solitary endoparasitoid Microplitis similis (Hymenoptera: Braconidae) is a potential biological control agent of Spodoptera litura (F.) larvae (Lepidoptera: Noctuidae). In this study, we examined the preference M. similis exhibits for different instars of the host, host instar effects on parasitoid development, and the weight gain and food consumption of different instars of parasitized larvae...
June 1, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/28407047/identification-of-candidate-odorant-binding-protein-and-chemosensory-protein-genes-in-cyrtorhinus-lividipennis-hemiptera-miridae-a-key-predator-of-the-rice-planthoppers-in-asia
#19
Gui-Yao Wang, Mu-Fei Zhu, Yan-Dong Jiang, Wen-Wu Zhou, Su Liu, Kong Luen Heong, Jiaan Cheng, Zeng-Rong Zhu
Cyrtorhinus lividipennis Reuter (Hemiptera: Miridae) is an important predatory natural enemy of planthopper and leafhopper eggs in Asian rice paddy fields. Cyrtorhinus lividipennis is known to rely largely on herbivore-induced plant volatiles to identify eggs embedded in rice stem tissues for feeding and on pheromones for mating. However, exactly how C. lividipennis decode these chemical information is unclear. In most insects, the odorant-binding proteins (OBPs) and the chemosensory proteins (CSPs) are essential for seeking out food resources and mates...
June 1, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/28402490/attraction-of-cerambycid-beetles-to-their-aggregation-sex-pheromones-is-influenced-by-volatiles-from-host-plants-of-their-larvae
#20
J C H Wong, Y Zou, J G Millar, L M Hanks
Here, we describe a field experiment that tested for attraction of cerambycid beetles to odors from angiosperm hosts, and whether plant volatiles also serve to enhance attraction of beetles to their aggregation-sex pheromones. Traps were baited with a blend of synthesized chemicals that are common pheromone components of species in the subfamilies Cerambycinae and Lamiinae. The source of plant volatiles was chipped wood from trees of three angiosperm species, as well as from one nonhost, gymnosperm species...
June 1, 2017: Environmental Entomology
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