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Bulletin of Entomological Research

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https://www.readbyqxmd.com/read/28532532/global-phylogenetic-relationships-population-structure-and-gene-flow-estimation-of-trialeurodes-vaporariorum-greenhouse-whitefly
#1
J M Wainaina, P De Barro, L Kubatko, M A Kehoe, J Harvey, D Karanja, L M Boykin
Trialeurodes vaporariorum (Westwood, 1856) (Greenhouse whitefly) is an agricultural pest of global importance. It is associated with damage to plants during feeding and subsequent virus transmission. Yet, global phylogenetic relationships, population structure, and estimation of the rates of gene flow within this whitefly species remain largely unexplored. In this study, we obtained and filtered 227 GenBank records of mitochondrial cytochrome c oxidase I (mtCOI) sequences of T. vaporariorum, across various global locations to obtain a final set of 217 GenBank records...
May 23, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/28514972/the-effect-of-tetraneura-ulmi-l-galling-process-on-the-activity-of-amino-acid-decarboxylases-and-the-content-of-biogenic-amines-in-siberian-elm-tissues
#2
K Kmieć, C Sempruch, G Chrzanowski, P Czerniewicz
Tetraneura ulmi (L.), a member of Eriosomatinae subfamily, is one of the gall-forming aphids occurring on elms. Sap-sucking behaviour of founding mothers results in the formation of new plant organs. This study documents the changes in the content of plant biogenic amines (putrescine, cadaverine, spermidine, tryptamine, spermine and histamine) and key enzymes of their biosynthesis: lysine decarboxylase (LDC), tyrosine decarboxylase and ornithine decarboxylase (ODC) in galls and other parts of Siberian elm (Ulmus pumila L...
May 18, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/28490389/monitoring-and-mass-trapping-methodologies-using-pheromones-the-lesser-date-moth-batrachedra-amydraula
#3
A Levi-Zada, A Sadowsky, S Dobrinin, T Ticuchinski, M David, D Fefer, E Dunkelblum, J A Byers
The lesser date moth (LDM) Batrachedra amydraula is a significant pest of date palm fruits. Previously, detection and monitoring of the pest was inaccurate due to high costs of sampling with lifting machines. We report a practical system for detection and monitoring of LDM based on pheromone traps and relevant models. Dose-response experiments with LDM pheromone traps indicated a 1 mg lure is optimal for monitoring. Delta traps with adhesive covering their entire inner surface gave the highest captures while trap colour was unimportant...
May 11, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/28485268/biochemical-studies-of-amylase-lipase-and-protease-in-callosobruchus-maculatus-coleoptera-chrysomelidae-populations-fed-with-vigna-unguiculata-grain-cultivated-with-diazotrophic-bacteria-strains
#4
L B Silva, É B Torres, R A S Nóbrega, G N Lopes, R F Vogado, B E Pavan, P I Fernandes-Junior
The objective of this study was to evaluate the enzymatic activity of homogenates of insects fed on grain of cowpea, Vigna unguiculata (L.), cultivars grown with different nitrogen sources. For the experiment we used aliquots of the homogenate of 100 unsexed adult insects, emerged from 10 g of grain obtained from four cowpea cultivars: 'BRS Acauã', 'BRS Carijó', 'BRS Pujante', and 'BRS Tapaihum' grown under different regimes of nitrogen sources: mineral fertilizer, inoculation with strains of diazotrophs (BR 3267, BR 3262, BR 3299; INPA 03-11B, 03-84 UFLA, as well as the control (with soil nitrogen)...
May 9, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/28485267/blue-light-induced-immunosuppression-in-bactrocera-dorsalis-adults-as-a-carryover-effect-of-larval-exposure
#5
K Tariq, M Noor, M Hori, A Ali, A Hussain, W Peng, C-J Chang, H Zhang
Detrimental effects of ultraviolet (UV) light on living organisms are well understood, little is known about the effects of blue light irradiation. Although a recent study revealed that blue light caused more harmful effects on insects than UV light and blue light irradiation killed insect pests of various orders including Diptera, the effects of blue light on physiology of insects are still largely unknown. Here we studied the effects of blue light irradiation on cuticular melanin in larval and the immune response in adult stage of Bactrocera dorsalis...
May 9, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/28485252/interspecific-interactions-in-solitary-aculeata-is-the-presence-of-heterospecifics-important-for-females-establishing-nests
#6
J Kierat, K Miler, W Celary, M Woyciechowski
There are several possible causes of aggregated nesting in solitary Aculeata, one being joint defense against parasites. We tested whether females prefer nesting in aggregations, even if they consist of heterospecifics. We compared the colonization and nesting parasitism of trap-nests with and without a red mason bee aggregation. The results did not support our hypothesis that females prefer nesting in aggregations. The numbers of wild Aculeata nests did not differ between trap-nests with and without an aggregation...
May 9, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/28482938/rna-interference-mediated-knockdown-of-some-genes-involved-in-digestion-and-development-of-helicoverpa-armigera
#7
M Vatanparast, M Kazzazi, A Mirzaie-Asl, V Hosseininaveh
Helicoverpa armigera is a significant agricultural pest and particularly notorious for its resistance to many types of common insecticides. RNA interference (RNAi) is a mechanism of post-transcriptional gene silencing and trigged by double-strand RNA (dsRNA), has become a widely used reverse genetics and potent tool for insect pest control. In this study, the effect of ingestion and injection delivery methods of dsRNA related two important enzyme genes, α-amylase (HaAMY48, Ha-AMY49) and juvenile hormone esterase (Ha-JHE), were examined on growth and development of H...
May 9, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/28464973/evaluation-of-fipronil-and-imidacloprid-as-bait-active-ingredients-against-fungus-growing-termites-blattodea-termitidae-macrotermitinae
#8
N Iqbal, T A Evans
Fungus-growing termites (Macrotermitinae) are important pests in tropical countries. They are difficult to control with existing baiting methods, as chitin synthesis inhibitors are not effectual as active ingredients. We tested two neurotoxins, fipronil and imidacloprid, as potential bait active ingredients against Macrotermes gilvus (Hagen) in Singapore. In laboratory bioassays, M. gilvus showed no preference for doses of 0-64 ppm fipronil, or for doses of 0-250 ppm imidacloprid, indicating no repellence. We tested each insecticide in toilet paper as a bait matrix in a field experiment...
May 3, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/28464967/mechanisms-of-resistance-to-three-mite-growth-inhibitors-of-tetranychus-urticae-in-hops
#9
A W Adesanya, M A Morales, D B Walsh, L C Lavine, M D Lavine, F Zhu
Mite growth inhibitors (MGIs), such as etoxazole and hexythiazox, are valuable IPM tools for Tetranychus urticae control in hops due to their unique mode of action and selectivity. Hence, it is necessary to standardize bioassay methods to evaluate the efficacy of MGIs, monitor resistance, and identify mechanisms underlying MGI resistance in the field. Here, we developed a three-tiered approach for evaluating ovicidal toxicity of MGIs to T. urticae, which simulated different MGI exposure scenarios in the field...
May 3, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/28464964/bactrocera-oleae-induced-olive-vocs-routing-mate-searching-in-psyttalia-concolor-males-impact-of-associative-learning
#10
G Giunti, G Benelli, V Palmeri, A Canale
Olfaction is a key sense routing foraging behaviour in parasitoids. Preferences for food, mate and host stimuli can be innate in parasitic wasps. Alternatively, learning-mediated mechanisms play a crucial role. Females of the braconid parasitoid Psyttalia concolor exploit olfactory cues arising from tephritid hosts and related microhabitats. However, little is known on the olfactory stimuli routing males searching for mates. In this study, we focused on the attractiveness of Bactrocera oleae-induced olive volatiles towards P...
May 3, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/28436337/molecular-cloning-expression-and-characterization-of-e2f-transcription-factor-4-from-antheraea-pernyi
#11
M N Abbas, S Kausar, Y-X Sun, Y Sun, L Wang, C Qian, G-Q Wei, B-J Zhu, C-L Liu
The E2F transcription factor family is distributed widely in eukaryotes and has been well studied among mammals. In the present study, the E2F transcription factor 4 (E2F4) gene was isolated from fat bodies of Antheraea pernyi and sequenced. E2F4 comprised a 795 bp open reading frame encoding a deduced amino acid sequence of 264 amino acid residues. The recombinant protein was expressed in Escherichia coli (Transetta DE3), and anti-E2F4 antibodies were prepared. The deduced amino acid sequence displayed significant homology to an E2F4-like protein from Bombyx mori L...
April 24, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/28434411/direct-and-indirect-resistance-of-sugarcane-to-diatraea-saccharalis-induced-by-jasmonic-acid
#12
P A Sanches, F Santos, M F G V Peñaflor, J M S Bento
Treating plants with synthetic jasmonic acid (JA) induces a defensive response similar to herbivore attack, and is a potential strategy for integrated pest management. Despite the importance of sugarcane, its JA-induced defences have not yet been studied. We investigated the effects of JA treatment on the direct and indirect resistance of sugarcane to the key-pest and specialist herbivore Diatraea saccharalis and the generalist Spodoptera frugiperda. Indirect defences were examined by testing the attraction of Cotesia flavipes, a sugarcane-borer parasitoid, to JA-induced volatile...
April 24, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/28424101/limited-impacts-of-truck-based-ultra-low-volume-applications-of-mosquito-adulticides-on-mortality-in-honey-bees-apis-mellifera
#13
F D Rinkevich, J W Margotta, V Pokhrel, T W Walker, R H Vaeth, W C Hoffman, B K Fritz, R G Danka, T E Rinderer, R L Aldridge, K J Linthicum, J A Ottea, K B Healy
Adulticides applied against mosquitoes can reduce vector populations during times of high arbovirus transmission. However, impacts of these insecticides on pollinators and other non-target organisms are of concern to mosquito control professionals, beekeepers and others. We evaluated mortality of Culex quinquefasciatus and Apis mellifera when caged insects were exposed to low and high label rates of four common adulticides (Aqua-Pursuit™ [permethrin], Duet® [prallethrin + sumithrin], Fyfanon® [malathion] and Scourge® [resmethrin]) at six distances up to 91...
April 20, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/28424098/identification-of-odorant-binding-protein-genes-in-galeruca-daurica-coleoptera-chrysomelidae-and-analysis-of-their-expression-profiles
#14
L Li, Y-T Zhou, Y Tan, X-R Zhou, B-P Pang
Odorant-binding proteins (OBPs) play a fundamental role in insect olfaction. In recent years, Galeruca daurica (Joannis) (Coleoptera: Chrysomelidae) has become one of the most important insect pests in the Inner Mongolian grasslands of China. This pest only feeds on the species of Allium plants, implying the central role of olfaction in its search for specific host plants. However, the olfaction-related proteins have not been investigated in this beetle. In this study, we identified 29 putative OBP genes, namely GdauOBP1-29, from the transcriptome database of G...
April 20, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/28416024/polymorphism-in-male-genitalia-of-aedes-ochlerotatus-scapularis-rondani-1848
#15
V Petersen, F Virginio, L Suesdek
Morphology of male genitalia of culicids is generally species-specific and often used as a taxonomic marker. However, some characters of the male genitalia vary intraspecifically and are not taxonomically diagnostic. This might be the case of Aedes scapularis, a Neotropical culicid with vector competence for arboviruses and filarial worms. Males of this species may or not present a retrorse process (RP) in the genitalic claspette filaments, which led authors to suspect that this variance might be indicative of population divergence or incipient speciation process...
April 18, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/28397642/effect-of-plant-development-age-and-size-on-the-mi-1-mediated-resistance-of-tomato-to-whitefly-bemisia-tabaci
#16
C I Rodríguez-Álvarez, M Muñiz, G Nombela
Whitefly, Bemisia tabaci, is one of the most important pests of tomato, Solanum lycopersicum L. The Mi-1 gene mediates tomato resistance to the Middle East-Asia Minor 1 (MEAM1) and Mediterranean (MED) species of B. tabaci, three species of root-knot nematodes, Meloidogyne spp., and the potato aphid, Macrosiphum euphorbiae. Tomato seedlings bearing the Mi-1 gene are resistant to nematodes soon after germination but resistance to aphids is developmentally regulated; a reliable conclusion about Mi-1 resistance to B...
April 11, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/28397638/number-of-attacks-by-trichogramma-dendrolimi-hymenoptera-trichogrammatidae-affects-the-successful-parasitism-of-ostrinia-furnacalis-lepidoptera-crambidae-eggs
#17
J Huang, H-Q Hua, L-Y Wang, F Zhang, Y-X Li
In laboratories, the parasitism rate of Ostrinia furnacalis (Güenée) (Lepidoptera: Crambidae) eggs by Trichogramma dendrolimi Matsumura (Hymenoptera: Trichogrammatidae) is low; however, efforts to control O. furnacalis with T. dendrolimi in the field have been successful. In this study, the effects of the number of attacks by T. dendrolimi against O. furnacalis eggs and diet of O. furnacalis larva on wasp development were investigated. The results indicated that more attacks increased significantly not only the successful parasitism rate of O...
April 11, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/28397625/reproductive-biology-of-the-great-capricorn-beetle-cerambyx-cerdo-coleoptera-cerambycidae-a-protected-but-occasionally-harmful-species
#18
L M Torres-Vila
Cerambyx cerdo (Cc) is a protected saproxylic beetle in Europe, although it is increasingly reported as an oak 'pest'. Cc ecological features are relatively well known, but, its reproductive biology is still poorly understood. Hence, we investigated the reproductive traits of Cc under laboratory conditions. In females, body length was 44.1 ± 0.9 mm, 28-53 (mean ± SE, range); fecundity 143 ± 11 eggs, 33-347; fertility 78 ± 1%, 65-93; oviposition period 44 ± 3 days, 13-128 and longevity 59 ± 5 days, 16-157...
April 11, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/28390443/development-and-characterization-of-polymorphic-genomic-ssr-markers-in-asian-long-horned-beetle-anoplophora-glabripennis
#19
Zhaoyang Liu, Jing Tao, Youqing Luo
The Asian long-horned beetle (ALB), Anoplophora glabripennis (Motschulsky) (Coleoptera: Cerambycidae: Lamiinae), is a wood-borer and polyphagous xylophage that is native to Asia. It infests and seriously harms healthy trees, and therefore is a cause for considerable environmental concern. The analysis of population genetic structure of ALB and sibling species Anoplophora nobilis (Ganglbauer) will not only help to clarify the relationship between environmental variables and mechanisms of speciation, but also will enhance our understanding of evolutionary processes...
April 9, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/28382882/mating-system-mate-choice-and-parental-care-in-a-bark-beetle
#20
O Baruch, Z Mendel, I Scharf, A R Harari
The cypress bark beetle, Phloeosinus armatus, is a common element of the dying cypress tree system in East-Mediterranean countries. Adult beetles congregate for breeding on this ephemeral resource. We studied three traits that characterize this beetle's sexual behavior and linked them to its reproductive success: mating system, mate choice, and parental care. We found that the females are the 'pioneering sex', excavating the mating chamber. The average female is slightly larger than the male, and female and male body size is correlated, demonstrating size-assortative mating...
April 6, 2017: Bulletin of Entomological Research
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