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Journal of Insect Science

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https://www.readbyqxmd.com/read/28475683/distribution-of-karyotypes-of-the-cryptocercus-punctulatus-species-complex-blattodea-cryptocercidae-in-great-smoky-mountains-national-park
#1
Christine A Nalepa, Keisuke Shimada, Kiyoto Maekawa, Peter Luykx
During the period between 1999 and 2006, wood-feeding cockroaches in the Cryptocercus punctulatus Scudder species complex were collected throughout Great Smoky Mountains National Park, USA. The chromosome numbers of insects from 59 sites were determined, and phylogenetic analyses were performed based on mitochondrial COII and nuclear ITS2 DNA. The distribution of the three male karyotypes found in the park (2n = 37, 39, and 45) is mapped and discussed in relation to recent disturbances and glacial history...
March 1, 2017: Journal of Insect Science
https://www.readbyqxmd.com/read/28423430/bioactivity-of-novel-botanical-insecticide-from-gnidia-kaussiana-thymeleaceae-against-callosobruchus-maculatus-coleoptera-chrysomelidae-in-stored-vigna-subterranea-fabaceae-grains
#2
D Kosini, E N Nukenine
Hexane, acetone, and methanol extracts from Gnidia kaussiana Meisn (Thymeleaceae), each at two dosages (0.2 and 1 ml/50 g grains corresponding, respectively to 1 and 5g/kg), and neem seed oil (NSO), used as standard insecticide were evaluated for repellence, toxicity to Callosobruchus maculatus (F.) (Coleoptera: Chrysomelidae) adults, F1 progeny inhibition, persistence and as grain protectant during storage. Experiments were laid out at complete randomized design with five replications for repellence test and four for others...
January 1, 2017: Journal of Insect Science
https://www.readbyqxmd.com/read/28423429/modeling-temperature-dependent-development-of-glyphodes-pyloalis-lepidoptera-pyralidae
#3
Zohreh Moallem, Azadeh Karimi-Malati, Ahad Sahragard, Arash Zibaee
Development of Glyphodes pyloalis Walker was studied under laboratory conditions at constant temperatures of 12, 16, 20, 24, 28, 30, 32, and 36 °C. No development occurred at 36 °C. Although eggs hatched at 12 ºC, no larvae were capable of developing to adult stage. At 16 ºC, survival rate was low (4%) and prepupal stage lasted 101.68 ± 11.03 d. Larvae completed development through six stadia at 16, 30, and 32 °C. Developmental time of overall immature stages varied from 46.62 d at 20 °C to 22...
January 1, 2017: Journal of Insect Science
https://www.readbyqxmd.com/read/28423428/aggregation-behavior-and-a-putative-aggregation-pheromone-in-sugar-beet-root-maggot-flies-diptera-ulidiidae
#4
Erik J Wenninger, Susan Y Emmert, Kelly Tindall, Hongjian Ding, Mark A Boetel, D Rajabaskar, Sanford D Eigenbrode
Male-biased aggregations of sugar beet root maggot, Tetanops myopaeformis (Röder) (Diptera: Ulidiidae), flies were observed on utility poles near sugar beet (Beta vulgaris L. [Chenopodiaceae]) fields in southern Idaho; this contrasts with the approximately equal sex ratio typically observed within fields. Peak observation of mating pairs coincided with peak diurnal abundance of flies. Volatiles released by individual male and female flies were sampled from 08:00 to 24:00 hours in the laboratory using solid-phase microextraction and analyzed using gas chromatography/mass spectrometry (GC/MS)...
January 1, 2017: Journal of Insect Science
https://www.readbyqxmd.com/read/28423427/influence-of-temperature-and-relative-humidity-on-the-insecticidal-efficacy-of-metarhizium-anisopliae-against-larvae-of-ephestia-kuehniella-lepidoptera-pyralidae-on-wheat
#5
Christos G Athanassiou, Nickolas G Kavallieratos, Christos I Rumbos, Demetrius C Kontodimas
A series of laboratory bioassays were conducted for the evaluation of the insecticidal efficacy of an isolate of Metarhizium anisopliae (Metschnikoff) Sorokin (Ascomycota: Hypocreales) against larvae of the Mediterranean flour moth, Ephestia kuehniella Zeller (Lepidoptera: Pyralidae), under various temperature-relative humidity (r.h.) conditions. The fungus was applied at four doses (0, 8 × 106, 8 × 108, and 8 × 1010 conidia ml-1) on wheat and insect mortality was assessed after exposure of 1, 2, 7, and 14 d...
January 1, 2017: Journal of Insect Science
https://www.readbyqxmd.com/read/28423426/the-invasive-liriomyza-huidobrensis-diptera-agromyzidae-understanding-its-pest-status-and-management-globally
#6
Phyllis G Weintraub, Sonja J Scheffer, Diedrich Visser, Graciela Valladares, Alberto Soares Correa, B Merle Shepard, Aunu Rauf, Sean T Murphy, Norma Mujica, Charles MacVean, Jürgen Kroschel, Miriam Kishinevsky, Ravindra C Joshi, Nina S Johansen, Rebecca H Hallett, Hasan S Civelek, Bing Chen, Helga Blanco Metzler
Liriomyza huidobrensis (Blanchard) is native to South America but has expanded its range and invaded many regions of the world, primarily on flowers and to a lesser extent on horticultural product shipments. As a result of initial invasion into an area, damage caused is usually significant but not necessarily sustained. Currently, it is an economic pest in selected native and invaded regions of the world. Adults cause damage by puncturing abaxial and adaxial leaf surfaces for feeding and egg laying sites. Larvae mine the leaf parenchyma tissues which can lead to leaves drying and wilting...
January 1, 2017: Journal of Insect Science
https://www.readbyqxmd.com/read/28423425/temporal-resource-partitioning-and-interspecific-correlations-in-a-warm-temperate-climate-assemblage-of-dung-beetles-coleoptera-scarabaeidae
#7
Gregory T Sullivan, Sebahat K Ozman-Sullivan, Anne Bourne, Jean-Pierre Lumaret, Unal Zeybekoglu, Myron P Zalucki, Greg Baxter
Guilds of dung dwelling and tunneling dung beetles coexist in local assemblages in warm temperate regions, despite the tendency of dwellers to be inferior competitors. A field experiment on the Black Sea coast of Turkey examined the role of temporal resource partitioning in their coexistence. Standardized dung pads deposited at 4 h intervals through a 24 h period in summer were collected 12, 24, or 48 h later. Adults from 10 tunneling and seven dung dwelling species were collected. The tunnelers contributed a high proportion of both total abundance and biomass...
January 1, 2017: Journal of Insect Science
https://www.readbyqxmd.com/read/28423424/field-evaluation-of-potential-pheromone-lures-for-lygus-lineolaris-hemiptera-miridae-in-the-mid-south
#8
Katherine A Parys, David R Hall
Plant bugs (Hemiptera: Miridae) are phytophagous pests of cultivated plants around the world. In the mid-South region of the United States, Lygus lineolaris (Palisot de Beauvois) is a primary pest of cotton, and causes economic damage. Previously published research about the volatiles produced by members of the genus Lygus, and other closely related groups, indicated that they produce blends of hexyl butyrate, (E)-2-hexenyl butyrate, and (E)-4-oxo-2-hexenal. Varying ratios of the three compounds were loaded into pipette tips, and screened in combination with non-UV white sticky cards for attractiveness to field populations of L...
January 1, 2017: Journal of Insect Science
https://www.readbyqxmd.com/read/28423423/invertebrates-fungal-biomass-and-leaf-breakdown-in-pools-and-riffles-of-neotropical-streams
#9
Renato Tavares Martins, Lidimara Souza da Silveira, Marcos Pereira Lopes, Roberto Gama Alves
We evaluated fungal biomass (as ergosterol concentration) and invertebrate colonization during leaf breakdown of Picramnia sellowii Planch. (Picramniaceae) in pools and riffles of three low-order forested streams in southeastern Brazil. We hypothesized that leaf breakdown will be higher in riffles due to the high physical fragmentation and fungal activity. The experiment was carried out during the dry season of 2012, using 108 litter bags, each containing 3 ± 0.05 g of air-dried leaves. After 7, 15, 30, 60, 90, and 120 d of incubation, six litter bags (riffle = 3 and pool = 3) were removed from each stream...
January 1, 2017: Journal of Insect Science
https://www.readbyqxmd.com/read/28423422/immunological-responses-of-sesamia-cretica-to-ferula-ovina-essential-oil
#10
Reza Sadeghi, Niloofar Hadizadeh Raeisi, Arsalan Jamshidnia
The current research was performed aiming to investigate the effects of Ferula ovina essential oil on the fourth instar larval hemogram of Sesamia cretica. Four main sorts of circulating hemocytes, including prohemocytes, plasmatocytes, granulocytes (GRs), and oenocytoides, were identified in the fourth instar larvae. Treatment of the larvae with the concentration of 1000 ppm of the essential oil led to an enhancement of the total hemocyte and GR count followed by a dose-dependent decrease at the concentrations of 2500 and 7000 ppm...
January 1, 2017: Journal of Insect Science
https://www.readbyqxmd.com/read/28423421/efficacy-of-some-wearable-devices-compared-with-spray-on-insect-repellents-for-the-yellow-fever-mosquito-aedes-aegypti-l-diptera-culicidae
#11
Stacy D Rodriguez, Hae-Na Chung, Kristina K Gonzales, Julia Vulcan, Yiyi Li, Jorge A Ahumada, Hector M Romero, Mario De La Torre, Fangjun Shu, Immo A Hansen
The current Zika health crisis in the Americas has created an intense interest in mosquito control methods and products. Mosquito vectors of Zika are of the genus Aedes, mainly the yellow fever mosquito, Aedes aegypti. L. The use of repellents to alter mosquito host seeking behavior is an effective method for the prevention of mosquito-borne diseases. A large number of different spray-on repellents and wearable repellent devices are commercially available. The efficacies of many repellents are unknown. This study focuses on the efficacy of eleven different repellents in reducing the number of Ae...
January 1, 2017: Journal of Insect Science
https://www.readbyqxmd.com/read/28423420/functional-response-of-eretmocerus-delhiensis-on-trialeurodes-vaporariorum-by-parasitism-and-host-feeding
#12
Jafar Ebrahimifar, Arsalan Jamshidnia, Hossein Allahyari
The parasitoid wasp, Eretmocerus delhiensis (Hymenoptera, Aphelinidae) is a thelytokous and syn-ovigenic parasitoid. To evaluate E. delhiensis as a biocontrol agent in greenhouse, the killing efficiency of this parasitoid by parasitism and host-feeding, were studied. Killing efficiency can be compared by estimation of functional response parameters. Laboratory experiments were performed in controllable conditions to evaluate the functional response of E. delhiensis at eight densities (2, 4, 8, 16, 32, 64, 100, and 120 third nymphal stage) of Trialeurodes vaporariorum (Hemiptera, Aleyrodidae) on two hosts including; tomato and prickly lettuce...
January 1, 2017: Journal of Insect Science
https://www.readbyqxmd.com/read/28423419/temperature-dependent-biological-and-demographic-parameters-of-coleomegilla-maculata-coleoptera-coccinellidae
#13
Juan A Morales-Ramos, M Guadalupe Rojas
Knowledge of the most suitable environmental conditions for an organism growth and development is a prerequisite for developing mass rearing technology. The temperature requirements for development and the optimal range of temperatures for growth and reproduction of Coleomegilla maculata De Geer were studied. The development time of individual C. maculata larvae was determined at 18, 21, 24, 27, 30, 33, and 36 °C. Development times were converted to development rates and fitted to a nonlinear temperature-dependent model and to the linear day-degree model...
January 1, 2017: Journal of Insect Science
https://www.readbyqxmd.com/read/28423418/rna-seq-validation-of-rnai-identifies-additional-gene-connectivity-in-tribolium-castaneum-coleoptera-tenebrionidae
#14
Lindsey C Perkin, Alison R Gerken, Brenda Oppert
RNA interference (RNAi) is a functional genomics tool to correlate genotype and phenotype by delivering targeted, gene-specific, and complementary dsRNA into a host via injection, feeding, or other means in order to reduce gene expression. In the red flour beetle, Tribolium castaneum, RNAi has been successful via injected dsRNA at all life stages. Traditionally, successful transcript knockdown has been quantified by qPCR on a gene-by-gene basis, where only expression of the target gene and normalization genes are evaluated...
January 1, 2017: Journal of Insect Science
https://www.readbyqxmd.com/read/28423417/multi-species-mating-disruption-in-cranberries-ericales-ericaceae-early-evidence-using-a-flowable-emulsion
#15
Shawn A Steffan, Elissa M Chasen, Annie E Deutsch, Agenor Mafra-Neto
Pheromone-based mating disruption has proven to be a powerful pest management tactic in many cropping systems. However, in the cranberry system, a viable mating disruption program does not yet exist. There are commercially available pheromones for several of the major pests of cranberries, including the cranberry fruitworm, Acrobasis vaccinii Riley (Lepidoptera: Pyralidae) and blackheaded fireworm, Rhopobota naevana (Hübner) (Lepidoptera: Tortricidae). Previous studies have shown that mating disruption represents a promising approach for R...
January 1, 2017: Journal of Insect Science
https://www.readbyqxmd.com/read/28423416/beauveria-bassiana-ascomycota-hypocreales-introduced-as-an-endophyte-in-corn-plants-and-its-effects-on-consumption-reproductive-capacity-and-food-preference-of-dichroplus-maculipennis-orthoptera-acrididae-melanoplinae
#16
Sebastian A Pelizza, Yanina Mariottini, Leticia M Russo, M Florencia Vianna, Ana C Scorsetti, Carlos E Lange
In this study, the effects of strain Beauveria bassiana (LPSC 1067) as an endophyte in corn plants on consumption, fecundity, and food preference of Dichroplus maculipennis were examined. We observed that the daily consumption by grasshoppers fed with control plants was almost twice that of those that were fed treated plants. Significant differences in fecundity of grasshoppers that were fed with treated plants compared with those that only fed on control plants were also observed. The number of eggs laid per female fed with control plants was 27...
January 1, 2017: Journal of Insect Science
https://www.readbyqxmd.com/read/28423415/the-potential-organ-involved-in-cantharidin-biosynthesis-in-epicauta-chinensis-laporte-coleoptera-meloidae
#17
Ming Jiang, Shumin Lü, Yalin Zhang
Cantharidin, a terpenoid defensive toxin mainly produced by blister beetles, is among the most widely known insect natural products in the world. However, little is known about the site of cantharidin biosynthesis in vivo. Our previous research showed that 3-hydroxy-3-methylglutary-CoA reductase (HMGR) is an essential enzyme in cantharidin biosynthesis. In this report, we further investigated cantharidin titer and HMGR mRNA expression levels in different tissues of male and female Epicauta chinensis, and performed a comparative analysis of HMGR transcript levels in male Tenebrio molitor, a Tenebrionidae beetle that cannot produce cantharidin...
January 1, 2017: Journal of Insect Science
https://www.readbyqxmd.com/read/28423414/discovery-development-and-evaluation-of-a-horn-fly-isolated-diptera-muscidae-beauveria-bassiana-hypocreales-cordyciptaceae-strain-from-florida-usa
#18
Christopher J Holderman, Lois A Wood, Christopher J Geden, Phillip E Kaufman
The horn fly, Haematobia irritans (L.) is an important cattle pest and traditionally has been managed using insecticides; however, many horn fly populations are insecticide-resistant in United States. Use of alternative control techniques has been limited because of the challenges of managing a fly pest on pastured cattle. After the discovery of a wild horn fly infected with Beauveria bassiana in Florida, the fungus was cultured and evaluated for efficacy against laboratory-reared horn flies. This fungal strain was selected for increased virulence by passage through laboratory-reared horn fly hosts to shorten interval from infection to fly death and subsequent conidia formation, properties important to future use of the fungus as a biological control agent against horn flies...
January 1, 2017: Journal of Insect Science
https://www.readbyqxmd.com/read/28365772/erratum
#19
(no author information available yet)
No abstract text is available yet for this article.
January 1, 2017: Journal of Insect Science
https://www.readbyqxmd.com/read/28365771/elicitors-of-host-plant-defenses-partially-suppress-cacopsylla-pyricola-hemiptera-psyllidae-populations-under-field-conditions
#20
W Rodney Cooper, David R Horton
Defense elicitors are products that activate acquired defense responses in plants, thus rendering the plants less susceptible to attack by a broad range of pests. We demonstrated previously under laboratory conditions that foliar applications of the defense elicitors Actigard (acibenzolar-S-methyl), Employ (harpin protein), or ODC (chitosan) to potted pear trees (Pyrus communis L.) each caused an increase in mortality of Cacopsylla pyricola (Förster) (Hemiptera: Psyllidae) nymphs and altered the settling and oviposition behavior of the adults...
January 1, 2017: Journal of Insect Science
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