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Bulletin of Entomological Research

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https://www.readbyqxmd.com/read/29345218/mitochondrial-dna-suggests-cryptic-speciation-in-prodiplosis-longifila-gagn%C3%A3-diptera-cecidomyiidae-associated-with-geographic-distance-and-host-specialization
#1
D N Duque-Gamboa, M F Castillo-Cárdenas, L M Hernández, Y C Guzmán, M R Manzano, N Toro-Perea
Prodiplosis longifila is reported as a pest of a wide range of species cultivated in America, including citrus, solanaceous species and asparagus. This species has different behavioural traits that are primarily centred on the oviposition habit and the feeding of larvae, which can change depending on the host. However, scarce information is available on population studies and the natural history of this insect, and uncertainty exists about the taxonomic identity and the geographic distribution of this species...
January 18, 2018: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/29307311/the-effects-of-within-stand-disturbance-in-plantation-forests-indicate-complex-and-contrasting-responses-among-and-within-beetle-families
#2
S Mladenović, T Loskotová, J Boháč, J Pavlíček, J Brestovanský, J Horák
Plantation forests with timber production as the major function are highly fragmented and disturbed regarding the tree species composition and stand area. Their closed canopies also have different microclimatic conditions compared with better studied conservation areas. We studied three beetle families (click, longhorn, and rove beetles) with different ecological demands in lowland plantation forests dominated by Sessile oak and Norway spruce in the Czech Republic. Our main interest was how their species richness, abundance, diversity, body length, rarity, red-list status, species composition and individual species were driven by the main tree species, stand area and canopy openness...
January 8, 2018: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/29268804/morphological-biometrical-and-molecular-characterization-of-archaeopsylla-erinacei-bouch%C3%A3-1835
#3
A Zurita, R Callejón, M de Rojas, C Cutillas
In the present work, we carried out a morphological, biometrical and molecular study of the species Archaeopsylla erinacei (Bouché, 1835) and their subspecies: Archaeopsylla erinacei erinacei (Bouché, 1835) and Archaeopsylla erinacei maura (Jordan & Rothschild, 1912) isolated from hedgehogs (Erinaceus europaeus) from different geographical regions (Seville and Corse). We have found morphological differences in females of A. erinacei from the same geographical origin that did not correspond with molecular differences...
December 22, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/29237511/toxic-effects-of-two-essential-oils-and-their-constituents-on-the-mealworm-beetle-tenebrio-molitor
#4
L C Martínez, A Plata-Rueda, H C Colares, J M Campos, M H Dos Santos, F L Fernandes, J E Serrão, J C Zanuncio
The study identified insecticidal effects from the cinnamon and clove essential oils in Tenebrio molitor L. (Coleoptera: Tenebrionidae). The lethal concentrations (LC50 and LC90), lethal time, and repellent effect on larvae, pupae, and adults of T. molitor after exposure to six concentrations of each essential oil and toxic compounds were evaluated. The chemical composition of the cinnamon oil was also determined and primary compounds were eugenol (10.19%), trans-3-caren-2-ol (9.92%), benzyl benzoate (9.68%), caryophyllene (9...
December 14, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/29223179/intra-and-inter-specific-variation-in-alarm-pheromone-produced-by-solenopsis-fire-ants
#5
L Hu, R R Balusu, W-Q Zhang, O S Ajayi, Y-Y Lu, R-S Zeng, H Y Fadamiro, L Chen
Some fire ants of the genus Solenopsis have become invasive species in the southern United States displacing native species by competition. Although the displacement pattern seems clear, the mechanisms underlying competitive advantage remain unclear. The ability of ant workers to produce relatively larger amount of alarm pheromone may correspond to relative greater fitness among sympatric fire ant species. Here we report on quantitative intra-specific (i.e. inter-caste) and inter-specific differences of alarm pheromone component, 2-ethyl-3,6-dimethylpyrazine (2E36DMP), for several fire ant species...
December 10, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/29198250/cornicle-secretions-by-aphis-fabae-hemiptera-aphididae-result-in-age-dependent-costs-and-improved-host-suitability-for-lysiphlebus-fabarum-marshall-hymenoptera-braconidae
#6
Y Parvizi, A Rasekh, J P Michaud
We examined the life history consequences of cornicle secretion by Aphis fabae Scopoli in second and fourth instars, and its effects on host suitability for its parasitoid, Lysiphlebus fabarum (Marshall). Cornicle secretion did not affect aphid fecundity, but secretion in the second instar enhanced life table parameters, whereas secretion in the fourth instar affected them negatively, suggesting a higher cost of secretion in later instars. Secretion in either instar improved host suitability for L. fabarum...
December 4, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/29198205/do-mothers-really-know-best-complexities-in-testing-the-preference-performance-hypothesis-in-polyphagous-frugivorous-fruit-flies
#7
A Birke, M Aluja
The preference-performance hypothesis (PPH) has widely been used to explain host exploitation patterns by phytophagous insects. However, this hypothesis often fails in the case of polyphagous species when compared with specialists. One explanation, validated by the information-processing hypothesis (IPH), considers that polyphagous insects are unable to process a large array of cues, which hinders females from distinguishing between high- and low- quality hosts. Here we analyzed Anastrepha ludens female host preference and offspring performance, and tested if neuronal limitations could possibly play a role in the incapacity of the polyphagous A...
December 4, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/29198202/effects-of-insecticides-chlorpyrifos-emamectin-benzoate-and-fipronil-on-spodoptera-litura-might-be-mediated-by-obps-and-csps
#8
X Lin, Y Jiang, L Zhang, Y Cai
Spodoptera litura is a widespread polyphagous insect pest that can develop resistance and cross-resistance to insecticides, making it difficult to control. Insecticide exposure has previously been linked with induction of specific olfactory-related proteins, including some chemosensory proteins (CSPs) and odorant-binding proteins (OPBs), which may disrupt detection of environmental factors and reduce fitness. However, functional evidence supporting insecticide and OBPs/CSPs mediation remains unknown. Here we fed male S...
December 4, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/29198200/selecting-native-perennial-plants-for-ecological-intensification-in-mediterranean-greenhouse-horticulture
#9
E Rodríguez, M González, D Paredes, M Campos, E Benítez
Natural control by predators and parasitoids provides an important and often unnoticed ecosystem service to agricultural landscapes by reducing pest populations in crops. The current model of horticultural intensification in south-eastern Spain produces high yields but has also resulted in a landscape almost completely covered by plastic. Promoting natural areas among greenhouses could enhance biodiversity, by being beneficial insects, and reduce pest pressure outdoors. The first step is to ascertain how pests and their natural enemies (NEs) use Mediterranean vegetation for selecting the best plants for pest suppression outdoors...
December 4, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/29198198/assessing-resistance-of-sugarcane-varieties-to-sugarcane-borer-diatraea-saccharalis-fab-lepidoptera-crambidae
#10
A C Tomaz, A E Coutinho, B O Soares, L A Peternelli, E J G Pereira, M H P Barbosa
In this study, we investigated resistance traits to the sugarcane borer Diatraea saccharalis Fab. (Lepidoptera: Crambidae) in the leaves and stalks of six sugarcane cultivars in a series of greenhouse and laboratory assays. Investigation of plant factors and infestation rates to better discriminate stalk damage by the sugarcane borer indicated that infestation of 7-month-old, single plants with 20 larvae at the third or fourth instar per plant was suitable to assess tunneling length. Three cultivars (i.e. SP803280, RB928064, and RB835486) had lower stalk damage (i...
December 4, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/29198196/the-identification-and-expression-analysis-of-candidate-chemosensory-genes-in-the-bird-cherry-oat-aphid-rhopalosiphum-padi-l
#11
Z-W Kang, F-H Liu, R-P Pang, W-B Yu, X-L Tan, Z-Q Zheng, H-G Tian, T-X Liu
The bird cherry-oat aphid Rhopalosiphum padi (L.) is one of the most important wheat pests with polyphagia and autumn migrants. And, chemosensory genes were thought to play a key role in insect searching their hosts, food and mate. However, a systematic identification of the chemosensory genes in this pest has not been reported. Thus, in this study, we identified 14 odorant-binding proteins, nine chemosensory proteins, one sensory neuron membrane protein, 15 odorant receptors, 19 gustatory receptors and 16 ionotropic receptors from R...
December 4, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/29173200/new-microsatellites-revealed-strong-gene-flow-among-populations-of-a-new-outbreak-pest-athetis-lepigone-m%C3%A3-schler
#12
W-C Zhu, J-T Sun, J Dai, J-R Huang, L Chen, X-Y Hong
Athetis lepigone (Möschler) (Lepidoptera: Noctuidae) is a new outbreak pest in China. Consequently, it is unclear whether the emergence and spread of the outbreak of this pest are triggered by rapid in situ population size increases in each outbreak area, or by immigrants from a potential source area in China. In order to explore the outbreak process of this pest through a population genetics approach, we developed ten novel polymorphic expressed sequence tags (EST)-derived microsatellites. These new microsatellites had moderately high levels of polymorphism in the tested population...
November 27, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/29166981/organic-vs-organic-soil-arthropods-as-bioindicators-of-ecological-sustainability-in-greenhouse-system-experiment-under-mediterranean-conditions
#13
Suzana Madzaric, F G Ceglie, L Depalo, L Al Bitar, G Mimiola, F Tittarelli, G Burgio
Organic greenhouse (OGH) production is characterized by different systems and agricultural practices with diverse environmental impact. Soil arthropods are widely used as bioindicators of ecological sustainability in open field studies, while there is a lack of research on organic production for protected systems. This study assessed the soil arthropod abundance and diversity over a 2-year crop rotation in three systems of OGH production in the Mediterranean. The systems under assessment differed in soil fertility management: SUBST - a simplified system of organic production, based on an input substitution approach (use of guano and organic liquid fertilizers), AGROCOM - soil fertility mainly based on compost application and agroecological services crops (ASC) cultivation (tailored use of cover crops) as part of crop rotation, and AGROMAN - animal manure and ASC cultivation as part of crop rotation...
November 23, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/29166980/determination-of-the-efficiency-of-diets-for-larval-development-in-mass-rearing-aedes-aegypti-diptera-culicidae
#14
P A D H N Gunathilaka, U M H U Uduwawala, N W B A L Udayanga, R M T B Ranathunge, L D Amarasinghe, W Abeyewickreme
Larval diet quality and rearing conditions have a direct and irreversible effect on adult traits. Therefore, the current study was carried out to optimize the larval diet for mass rearing of Aedes aegypti, for Sterile Insect Technique (SIT)-based applications in Sri Lanka. Five batches of 750 first instar larvae (L 1) of Ae. aegypti were exposed to five different concentrations (2-10%) of International Atomic Energy Agency (IAEA) recommended the larval diet. Morphological development parameters of larva, pupa, and adult were detected at 24 h intervals along with selected growth parameters...
November 23, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/29166979/explaining-variations-in-the-diversity-of-parasitoid-assemblages-in-a-biosphere-reserve-of-mexico-evidence-from-vegetation-land-management-and-seasonality
#15
A González-Moreno, S Bordera, J Leirana-Alcocer, H Delfín-González, H S Ballina-Gómez
Insect fauna biodiversity in natural protected areas has not been thoroughly studied. Therefore, the aim of this work was to assess whether and how vegetation types, land management and seasonality influence the diversity of Ichneumonidae (Hymenoptera) in the Ría Lagartos Biosphere Reserve (Mexico). A sampling programme was conducted using Malaise traps from 2008 to 2009 in three vegetation types, each with two conservation zones (core and buffer zones). Three seasons were considered: rainy, dry and north-winds (isolated storms from November to February)...
November 23, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/29166963/anatomical-morphological-and-physiological-responses-of-two-sugarcane-genotypes-of-contrasting-susceptibility-to-mahanarva-fimbriolata-hemiptera-cercopidae
#16
C G Melo, A C Tomaz, B O Soares, K N Kuki, L A Peternelli, M H Pereira Barbosa
The purpose of this study was to investigate and compare root morpho-anatomical traits and physiological responses of susceptible (SP81-3250) and resistant (H. Kawandang) sugarcane genotypes exposed to the attack by nymphs of spittlebug Mahanarva fimbriolata (Stål) (Hemiptera: Cercopidae). Two experiments were conducted to compare the damage caused by spittlebug nymphs on fresh and dry biomass weight; lignin content in stalks; root anatomy; chlorophyll content; photosynthetic rate (A); carboxylation efficiency (A/Ci); stomatal conductance (g S ) and transpiration rate (E) of these genotypes...
November 23, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/29166962/biology-of-two-larval-morphological-phenotypes-of-aedes-aegypti-in-abidjan-c%C3%A3-te-d-ivoire
#17
N Guindo-Coulibaly, N R Diakite, A M Adja, J T Coulibaly, K F Bassa, Y L Konan, K E N'Goran
Since 2008, several outbreaks of yellow fever and dengue occurred in Abidjan, the economic capital of Côte d'Ivoire. A better knowledge of the biology of Aedes aegypti populations, the main vector of yellow fever and dengue viruses, is necessary to tailor vector control strategies implemented in the city. This study was designed to determine some biological parameters, occurring during the life cycle of two morphological phenotypes of Ae. aegypti larvae. Mosquitoes were sampled in a suburb of Abidjan (Treichville) using the WHO layer-traps technique...
November 23, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/29166959/short-distance-dispersal-of-hypothenemus-hampei-ferrari-females-coleoptera-curculionidae-scolytidae-during-the-coffee-tree-fruiting-period
#18
A K Román-Ruiz, F Ribeyre, J C Rojas, L Cruz-López, J F Barrera, B P Dufour
The coffee berry borer (CBB), Hypothenemus hampei (Ferrari), is a multivoltine species closely associated with coffee crops worldwide, causing severe damage to the bean. In Mexico, as in all tropical regions, CBB survives during the inter-harvest period in residual berries on the ground or in dry berries remaining on the branches, and then disperses in search of the first suitable berries. In this study, we investigated how CBB dispersed from the first infested nodes during the fruiting period of Coffea canephora Pierre, which provides a favourable trophic level for this insect...
November 23, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/29166953/mating-system-age-and-reproductive-performance-in-tenuisvalvae-notata-a-long-lived-ladybird-beetle
#19
Amanda C Túler, C S A Silva-Torres, J B Torres, R B Moraes, A R S Rodrigues
The long-lived polygynandrous ladybird beetle Tenuisvalvae notata (Mulsant) found in Brazil was evaluated in the laboratory for the effects of multiple mating and aging on its reproductive performance. This species is native to South America and is an important predator of mealybugs. Specifically studied were partner choice, female reproductive success, adult longevity, male virility, and offspring development. Young (5-10 days old) and older virgin females (95-100 days old) were subjected to either a single mate or multiple mating with the same or different males of various mating status (virgin or previously mated once, twice, and thrice)...
November 23, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/29110744/biochemical-characterization-a-digestive-trypsin-in-the-midgut-of-large-cabbage-white-butterfly-pieris-brassicae-l-lepidoptera-pieridae
#20
A Sharifloo, A Zibaee, J Jalali Sendi, K Talebi Jahroumi
A comprehensive study on digestive trypsin was undertaken in the larval midgut of Pieris brassicae L. Results of enzymatic compartmentalization showed a significantly higher activity of crude trypsin in the anterior larval midgut rather than posterior-midgut. Using Diethylaminoethyl cellulose fast flow column chromatography a purified trypsin was obtained by specific activity of 21 U mg-1 protein, recovery of 22%, purification fold of 28-fold and molecular weight of 25 kDa. This purified enzyme showed the highest activity at pH 8 and the corresponding temperature of 40°C...
November 7, 2017: Bulletin of Entomological Research
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