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Bulletin of Entomological Research

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https://www.readbyqxmd.com/read/29784071/efficacy-of-lysinibacillus-sphaericus-against-mixed-cultures-of-field-collected-and-laboratory-larvae-of-aedes-aegypti-and-culex-quinquefasciatus
#1
J C Santana-Martinez, J J Silva, J Dussan
Lysinibacillus sphaericus (Bacillales: Planococcaceae) is a spore-forming bacillus used for the biological control of mosquitoes (Diptera: Culicidae) due to its larvicidal activity determined by various toxins and S-layer protein produced either during sporulation or by the vegetative cell. Aedes aegypti and Culex quinquefasciatus are the vectors of arboviruses that cause tropical diseases representing a current public health problem. Both species may coexist in the same larval development sites and are susceptible to the larvicidal activity of L...
May 22, 2018: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/29784069/first-molecular-phylogeny-of-agrilus-coleoptera-buprestidae-the-largest-genus-on-earth-with-dna-barcode-database-for-forestry-pest-diagnostics
#2
I Kelnarova, E Jendek, V V Grebennikov, L Bocak
All more than 3000 species of Agrilus beetles are phytophagous and some cause economically significant damage to trees and shrubs. Facilitated by international trade, Agrilus species regularly invade new countries and continents. This necessitates a rapid identification of Agrilus species, as the first step for subsequent protective measures. This study provides the first DNA reference library for ~100 Agrilus species from the Northern Hemisphere based on three mitochondrial markers: cox1-5' (DNA barcode fragment), cox1-3', and rrnL...
May 22, 2018: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/29784067/yeast-derivatives-and-wheat-germ-in-the-adult-diet-modulates-fecundity-in-a-tephritid-pest
#3
L Goane, P M Pereyra, F Castro, M J Ruiz, M L Juárez, D F Segura, M T Vera
Anastrepha fraterculus (Wiedemann), a pest of great economic importance in South America, needs urgently to be controlled by environmentally friendly methods such as the sterile insect technique for which mass rearing of insects is required. Because oogenesis takes place during the adult stage, mass-rearing facilities should provide the females a diet that maximizes egg production at the lowest cost. Accordingly, we investigated the effect of artificial protein sources in the adult diet (yeast derivatives of different cost but with similar amino acids profiles, and the addition of wheat germ) on fecundity...
May 22, 2018: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/29784064/effects-of-eprinomectin-on-the-survival-reproduction-and-feeding-activity-of-the-dung-beetles-onthophagus-lenzii-harold-and-rare-species-copris-ochus-motschulsky-coleoptera-scarabaeidae
#4
I Ishikawa, M Iwasa
Effects of the antiparasitic drug eprinomectin were studied on the dung beetles, Onthophagus lenzii Harold and the rare species, Copris ochus Motschulsky by pour-on administrations (500 µg kg-1) in Japan. Eprinomectin was detected in cattle dung from 1 to 7 or 14 days after treatment, with a peak at 1 day after treatment in two experiments. In O. lenzii, adult survivals and numbers of brood balls constructed were significantly reduced in dung from eprinomectin-treated cattle at 1 and 3 days post-treatment in experiment 1, and adult emergence rates were extremely reduced in dung at 1, 3, and 7 days post-treatment...
May 22, 2018: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/29781420/species-specific-aggregation-pheromones-contribute-to-coexistence-in-two-closely-related-thrips-species
#5
X Li, S Geng, Z Zhang, J Zhang, W Li, J Huang, W Lin, Y Bei, Y Lu
Pheromones play an important role in mediating interspecific interactions in insects. In an insect community, pheromones can reveal information about the senders, which could be used by other members of the food web (competitor, natural enemies, etc.) to their own advantage. The aggregation pheromones of two closely related thrips species, Frankliniella occidentalis and Frankliniella intonsa, have been identified with the same major compounds, (R)-lavandulyl acetate and neryl (S)-2-methylbutanoate, but in different ratios...
May 21, 2018: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/29781411/phenotypic-plasticity-in-clutch-size-regulation-among-populations-of-a-potential-invasive-fruit-fly-from-environments-that-vary-in-host-heterogeneity-and-isolation
#6
M Aluja, A Birke, F Díaz-Fleischer, J Rull
Phenotypic plasticity is thought to evolve in response to environmental unpredictability and can shield genotypes from selection. However, selection can also act on plastic traits. Egg-laying behaviour, including clutch size regulation, is a plastic behavioural trait among tephritid fruit flies. We compared plasticity in clutch size regulation among females of Anastrepha ludens populations stemming from environments that differed in the degree of predictability in egg-laying opportunities. Clutch size regulation in response to hosts of different sizes was compared among flies from (a) a wild, highly isolated population, (b) a wild population that switches seasonally from a small wild host fruit that varies greatly in abundance to an abundant large-sized commercial host, and (c) a laboratory population...
May 21, 2018: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/29745349/automated-moth-flight-analysis-in-the-vicinity-of-artificial-light
#7
P Gaydecki
Instrumentation and software for the automated analysis of insect flight trajectories is described, intended for quantifying the behavioural dynamics of moths in the vicinity of artificial light. For its time, this moth imaging system was relatively advanced and revealed hitherto undocumented insights into moth flight behaviour. The illumination source comprised a 125 W mercury vapour light, operating in the visible and near ultraviolet wavelengths, mounted on top of a mobile telescopic mast at heights of 5 and 7...
May 10, 2018: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/29743126/selective-flowers-to-attract-and-enhance-telenomus-laeviceps-hymenoptera-scelionidae-a-released-biocontrol-agent-of-mamestra-brassicae-lepidoptera-noctuidae
#8
G Barloggio, L Tamm, P Nagel, H Luka
The importance of the right food source for the survival and reproduction of certain insect species is well documented. In the case of biocontrol agents, this is even more important in order to reach a high predation or parasitation performance. The egg parasitoid Telenomus laeviceps (Förster, 1861) (Hymenoptera: Scelionidae) is a promising candidate for mass release as a biological control agent of the cabbage moth Mamestra brassicae (Linnaeus, 1758) (Lepidoptera: Noctuidae). However, adult T. laeviceps need a sugar-rich food source to increase their parasitation performance and produce a good amount of female offspring...
May 10, 2018: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/29743124/effects-of-habitat-fragmentation-on-the-genetic-diversity-and-differentiation-of-dendrolimus-punctatus-lepidoptera-lasiocampidae-in-thousand-island-lake-china-based-on-mitochondrial-coi-gene-sequences
#9
K Lv, J-R Wang, T-Q Li, J Zhou, J-Q Gu, G-X Zhou, Z-H Xu
Thousand Island Lake (TIL) is a typical fragmented landscape and an ideal model to study ecological effects of fragmentation. Partial fragments of the mitochondrial cytochrome oxidase subunit I gene of 23 island populations of Dendrolimus punctatus in TIL were sequenced, 141 haplotypes being identified. The number of haplotypes increased significantly with the increase in island area and shape index, whereas no significant correlation was detected between three island attributes (area, shape and isolation) and haplotype diversity...
May 10, 2018: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/29743123/characterization-of-three-heat-shock-protein-70-genes-from-liriomyza-trifolii-and-expression-during-thermal-stress-and-insect-development
#10
Y-W Chang, X-X Zhang, J-Y Chen, M-X Lu, W-R Gong, Y-Z Du
Heat shock proteins (HSPs) participate in diverse physiological processes in insects, and HSP70 is one of the most highly conserved proteins in the HSP family. In this study, full-length cDNAs of three HSP70 genes (Lthsc70, Lthsp701, and Lthsp702) were cloned and characterized from Liriomyza trifolii, an important invasive pest of vegetable crops and horticultural crops worldwide. These three HSP70s exhibited signature sequences and motifs that are typical of the HSP70 family. The expression patterns of the three Lthsp70s during temperature stress and in different insect development stages were studied by real-time quantitative PCR...
May 10, 2018: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/29734954/chinese-chives-and-garlic-in-intercropping-in-strawberry-high-tunnels-for-neopamera-bilobata-say-hemiptera-rhyparochromidae-control
#11
F T Hata, M U Ventura, V L Béga, I M Camacho, M T de Paula
Strawberry is affected by several pests and diseases. Neopamera bilobata is an emerging pest that has been reported by several strawberry growers, usually associated with catfacing symptoms in fruits. We evaluated intercropping garlic or Chinese chives on N. bilobata populations on strawberry crops grown in high tunnels in two experiments. In the first experiment, we evaluated N. bilobata populations on strawberry intercropping with garlic plants (three densities: 8, 16, 24 GP - garlic plant per plot) on the bags by taking 12 samples from December 2015 to April 2017...
May 8, 2018: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/29729674/dna-barcoding-and-real-time-pcr-detection-of-bactrocera-xanthodes-tephritidae-diptera-complex
#12
D Li, D W Waite, D N Gunawardana, B McCarthy, D Anderson, A Flynn, S George
Immature fruit fly stages of the family Tephritidae are commonly intercepted on breadfruit from Pacific countries at the New Zealand border but are unable to be identified to the species level using morphological characters. Subsequent molecular identification showed that they belong to Bactrocera xanthodes, which is part of a species complex that includes Bactrocera paraxanthodes, Bactrocera neoxanthodes and an undescribed species. To establish a more reliable molecular identification system for B. xanthodes, a reference database of DNA barcode sequences for the 5'-fragment of COI gene region was constructed for B...
May 6, 2018: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/29704901/do-the-plant-host-origins-of-helicoverpa-lepidoptera-noctuidae-moth-populations-reflect-the-agricultural-landscapes-within-which-they-are-caught
#13
G H Baker, C R Tann, P Verwey, L Lisle
The use of Bt cotton varieties has greatly reduced the amount of conventional insecticides required to control lepidopteran pests, Helicoverpa armigera and Helicoverpa punctigera, in Australia, but the possibility that these moths might become resistant to Bt remains a threat. Consequently, a Resistance Management Plan, which includes the mandatory growing of refuge crops (pigeon pea and non-Bt cotton; both C3 plants), has been established for Bt cotton farmers. However, knowledge of the relative contributions made to overall moth populations from the many host origins (both C3 and C4 plants) available to these insects throughout cotton production regions remains limited, as do the scales of movement and spatial mixing of moths within and between these areas...
April 29, 2018: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/29665888/survival-ability-of-mexican-fruit-fly-males-from-different-strains-in-presence-of-the-predatory-orb-weaving-spider-argiope-argentata-araneae-araneidae
#14
A Dor, P Liedo
The sterile insect technique (SIT) is a key element for the integrated management of pest populations of the Mexican fruit fly, Anastrepha ludens, in Mexico. Its success depends on the survival of mass-reared sterile males and their ability to mate with wild females. However, colonization and mass-rearing conditions can adversely affect their ability to avoid predators. To test if colony management strategies could contribute to improve field survival abilities of mass-reared flies, we compared the survival of males exposed to the orb-weaver spider Argiope argentata...
April 18, 2018: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/29665878/recent-changes-in-reproductive-phenology-of-a-k-selected-aquatic-insect-predator-belostoma-flumineum-say-heteroptera-belostomatidae
#15
S L Kight, G L Coffey, A W Tanner, M P Dmytriw, S L Tedesco, J Hoang, A K Aboagye
The timing of critical events like mating, migration, and development has noticeably and recently shifted in many populations of diverse organisms. Here, we report a change in the breeding phenology of giant waterbugs, Belostoma flumineum Say (Heteroptera, Belostomatidae), in the northeastern United States. Waterbugs collected in 2005 and 2006 exhibited previously typical patterns of mating and reproduction: two annual reproductive peaks in which overwintered adults mated in the spring and young adults from a new generation mated in the fall...
April 18, 2018: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/29665876/diversity-distribution-and-parasitism-rates-of-fleas-insecta-siphonaptera-on-sigmodontine-rodents-cricetidae-from-argentinian-patagonia
#16
J Sanchez, M Lareschi
Fleas have great medical relevance as vectors of the causative agents of several diseases in animals and humans and rodents are the principal reservoirs for these pathogens. Argentinian Patagonia has the highest diversity of rodent fleas in South America. However, parasitism rates of rodents by fleas, the factors that influence them and the ecological aspects that modulate geographical distributions of flea-host association remain unknown for this region. This is the first study to record the diversity, prevalence, abundance, geographical distributions and host ranges of fleas in Argentinian Patagonia...
April 18, 2018: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/29665874/attack-rates-of-sirex-noctilio-and-patterns-of-pine-tree-defenses-and-mortality-in-northern-patagonia
#17
S J Martinson, A A Fernádez Ajó, A S Martínez, F E Krivak-Tetley, J M Villacide, M P Ayres, J C Corley
Accidental and intentional global movement of species has increased the frequency of novel plant-insect interactions. In Patagonia, the European woodwasp, Sirex noctilio, has invaded commercial plantations of North American pines. We compared the patterns of resin defenses and S. noctilio-caused mortality at two mixed-species forests near San Carlos de Bariloche, Argentina. We observed lower levels of resin flow and higher levels of mortality in Pinus contorta compared with Pinus ponderosa. In general, S. noctilio attacked trees with lower resin compared with neighboring trees...
April 18, 2018: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/29665868/the-potential-distribution-of-the-russian-wheat-aphid-diuraphis-noxia-an-updated-distribution-model-including-irrigation-improves-model-fit-for-predicting-potential-spread
#18
G A Avila, M Davidson, M van Helden, L Fagan
Diuraphis noxia (Kurdjumov), Russian wheat aphid, is one of the world's most invasive and economically important agricultural pests of wheat and barley. In May 2016, it was found for the first time in Australia, with further sampling confirming it was widespread throughout south-eastern regions. Russian wheat aphid is not yet present in New Zealand. The impacts of this pest if it establishes in New Zealand, could result in serious control problems in wheat- and barley-growing regions. To evaluate whether D...
April 18, 2018: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/28891462/co-infection-with-a-wheat-rhabdovirus-causes-a-reduction-in-mal-de-r%C3%A3-o-cuarto-virus-titer-in-its-planthopper-vector
#19
A D Dumón, E B Argüello Caro, M F Mattio, V Alemandri, M Del Vas, G Truol
Mal de Río Cuarto virus (MRCV, Fijivirus, Reoviridae) causes one of the most important diseases in maize (Zea mays L.) in Argentina and has been detected in mixed infections with a rhabdovirus closely related to Maize yellow striate virus. In nature both viruses are able to infect maize and several grasses including wheat, and are transmitted in a persistent propagative manner by Delphacodes kuscheli Fennah (Hemiptera: Delphacidae). This work describes the interactions between MRCV and rhabdovirus within their natural vector and the consequences of such co-infection regarding virus transmission and symptom expression...
April 2018: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/28891460/source-of-hyalesthes-obsoletus-signoret-planthopper-hemiptera-cixiidae-in-southern-france-and-potential-effects-of-landscape
#20
L Hossard, S Guimier, F Vinatier, J M Barbier, S Delmotte, M Fontaine, J B Rivoal
Cixiid planthoppers are considered of major economic importance, as they can transmit phytoplasmas responsible for many plant diseases. While thorougly studied in vineyards, the epidemiology of stolbur phytoplasma, transmitted by Hyalesthes obsoletus Signoret, was rarely investigated on minor crops as lavender, where it leads to 'yellow decline' disease and large economic losses. The objective of this paper is to understand the effect of the local landscape characteristics on the presence and density of H. obsoletus in the 'Plateau de Valensole', southern France...
April 2018: Bulletin of Entomological Research
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