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Journal of Economic Entomology

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https://www.readbyqxmd.com/read/27852693/migratory-bee-hive-transportation-contributes-insignificantly-to-transgenic-pollen-movement-between-spatially-isolated-alfalfa-seed-fields
#1
Natalie K Boyle, Sandya R Kesoju, Stephanie L Greene, Ruth C Martin, Douglas B Walsh
Contracted commercial beekeeping operations provide an essential pollination service to many agricultural systems worldwide. Increased use of genetically engineered crops in agriculture has raised concerns over pollinator-mediated gene flow between transgenic and conventional agricultural varieties. This study evaluated whether contracted migratory beekeeping practices influence transgenic pollen flow among spatially isolated alfalfa fields. Twelve honey bee (Apis mellifera L.) colonies were permitted to forage on transgenic alfalfa blossoms for 1 wk in Touchet, WA...
November 16, 2016: Journal of Economic Entomology
https://www.readbyqxmd.com/read/27852692/landscape-factors-influencing-stink-bug-injury-in-mid-atlantic-tomato-fields
#2
Kevin B Rice, Rachael R Troyer, Kristal M Watrous, John F Tooker, Shelby J Fleischer
Landscape structure and diversity influence insect species abundance. In agricultural systems, adjacent crop and non-crop habitats can influence pest species population dynamics and intensify economic damage. To investigate the influence of landscape factors on stink bug damage in agricultural systems, we assessed stink bug damage from 30 processing tomato fields in the mid-Atlantic United States and analyzed landscape structure and geographic location. We found that forest shape and size, and geographic location strongly influenced stink bug damage...
November 16, 2016: Journal of Economic Entomology
https://www.readbyqxmd.com/read/27780838/physiological-response-of-orchids-to-mealybugs-hemiptera-pseudococcidae-infestation
#3
K Kmieć, I Kot, K Golan, E Górska-Drabik, B Łagowska, K Rubinowska, W Michałek
The harmfulness of mealybugs resulting from sucking plant sap, secreting honeydew, and transmitting plant viruses can give them the status of serious pests. This study documents the influence of Pseudococcus maritimus (Ehrhorn) and Pseudococcus longispinus (Targioni Tozzetti) infestation on alterations in selected physiological parameters of Phalaenopsis x hybridum 'Innocence'. The condition of the cytoplasmic membranes was expressed as the value of thiobarbituric acid reactive substances. We have determined changes in the activities of catalase and guaiacol peroxidase and measured the following chlorophyll fluorescence parameters: maximum quantum yield of photosystem II (Fv/Fm), effective quantum yield (Y), photochemical quenching (qP), and nonphotochemical quenching (qN)...
October 25, 2016: Journal of Economic Entomology
https://www.readbyqxmd.com/read/27780837/direct-exposure-of-wheat-seeds-to-high-voltage-electrostatic-fields-adversely-affects-the-performance-of-sitobion-avenae-hemiptera-aphididae
#4
Kun Luo, Zhu Cao, Rui Gao, Juan He, Guang-Yu Li, Huan-Huan Gao, Gai-Sheng Zhang, Hui-Yan Zhao
Exposing seeds to a high-voltage electrostatic field (HVEF) may influence the performance of herbivores and improve the germination rate by inducing biological and physiological changes in plants. In the current study, an age-stage, two-sex life table was established to evaluate the effects from directly exposing seeds to HVEFs on the performance of apterous Sitobion avenae (Fabricius) reared on winter wheat. We treated the wheat seeds by exposing them to an HVEF for 20 min at three intensities: 2, 4, or 6 KV/cm...
October 24, 2016: Journal of Economic Entomology
https://www.readbyqxmd.com/read/27760786/anthranilic-diamide-insecticides-delivered-via-multiple-approaches-to-control-vegetable-pests-a-case-study-in-snap-bean
#5
Rebecca A Schmidt-Jeffris, Brian A Nault
Many vegetable insect pests are managed using neonicotinoid and pyrethroid insecticides. Unfortunately, these insecticides are toxic to many bees and natural enemies and no longer control some pests that have developed resistance. Anthranilic diamide insecticides provide systemic control of many herbivorous arthropod pests, but exhibit low toxicity to beneficial arthropods and mammals, and may be a promising alternative to neonicotinoids and pyrethroids. Anthranilic diamides may be delivered to vegetable crops via seed, in-furrow, or foliar treatments; therefore, it would be desirable to identify which application method provides high levels of pest control while minimizing the amount of active ingredient...
October 19, 2016: Journal of Economic Entomology
https://www.readbyqxmd.com/read/27760785/monitoring-and-detecting-the-cigarette-beetle-coleoptera-anobiidae-using-ultraviolet-led-direct-and-reflected-lights-and-or-pheromone-traps-in-a-laboratory-and-a-storehouse
#6
Takahisa Miyatake, Tomoyuki Yokoi, Taro Fuchikawa, Nobuyoshi Korehisa, Toru Kamura, Kana Nanba, Shinsuke Ryouji, Nagisa Kamioka, Mantaro Hironaka, Midori Osada, Takahiko Hariyama, Rikiya Sasaki, Kazutaka Shinoda
The cigarette beetle, Lasioderma serricorne (F.), is an important stored-product pest worldwide because it damages dry foods. Detection and removal of the female L. serricorne will help to facilitate the control of the insect by removal of the egg-laying populations. In this manuscript, we examined the responses by L. serricorne to direct and reflected light in transparent cube (50 m(3)) set in a chamber (200 m(3)) and a stored facility with both direct and reflected UV-LED lights. The study also examined the responses by the beetles to light in the presence or absence of pheromone in traps that are placed at different heights...
October 19, 2016: Journal of Economic Entomology
https://www.readbyqxmd.com/read/27744286/a-rapid-sampling-plan-for-scirtothrips-dorsalis-thysanoptera-thripidae-on-container-shrub-rose-rosa-radrazz
#7
Luis F Aristizábal, Gabriel Moura Mascarin, Ron Cherry, Bernardo Chaves-Cordoba, Steven P Arthurs
The development of simple and reliable pest sampling programs is needed for growers to adopt economic or aesthetic injury levels. We developed a sampling plan for monitoring chilli thrips Scirtothrips dorsalis Hood populations on KnockOut shrub roses under simulated nursery conditions. The distribution of S. dorsalis among different plant structures revealed that most adults and larvae are found on foliar terminals, when compared with buds and flowers. Based on thrips distribution, the third leaf of actively growing terminals was used to determine a sequential sampling model...
October 15, 2016: Journal of Economic Entomology
https://www.readbyqxmd.com/read/27744285/comparison-of-two-sampling-methods-for-assessing-halyomorpha-halys-hemiptera-pentatomidae-numbers-in-soybean-fields
#8
B L Aigner, D A Herbert, G P Dively, D Venugopal, J Whalen, B Cissel, T P Kuhar, C C Brewster, J W Hogue, E Seymore
Sampling soybean fields for the brown marmorated stink bug, Halyomorpha halys Stål (Hemiptera: Pentatomidae), can be challenging. Both adults and nymphs have a "startle response" and drop to the ground with even the slightest disturbance. This behavior could reduce the effectiveness of the traditional sweep net and ground cloth sampling methods. In 2013 and 2014, in Virginia, Delaware, and Maryland, we evaluated a visual plant inspection method that consisted of counting the number of brown marmorated stink bug nymphs and adults seen on soybean plants in a 2-min inspection period while walking carefully between two rows...
October 15, 2016: Journal of Economic Entomology
https://www.readbyqxmd.com/read/27744284/effects-of-three-insect-growth-regulators-on-encarsia-formosa-hymenoptera-aphelinidae-an-endoparasitoid-of-bemisia-tabaci-hemiptera-aleyrodidae
#9
Q L Wang, T-X Liu
Insect growth regulators (IGRs) disrupt the normal activity of the endocrine or hormone system of insects, affecting the development, reproduction, or metamorphosis of the target insects, and normally causing less detrimental effects to beneficial insects. The effects of three IGRs (pyriproxyfen, fenoxycarb, and buprofezin) on Encarsia formosa Gahan, an endoparasitoid of whiteflies, were determined using B. tabaci as a host. We assessed the effects of the IGRs on parasitoid's larval development, pupation, emergence, and contact effects of the dry residues on plant leaf and glass vial surface on adult mortality and parasitism...
October 15, 2016: Journal of Economic Entomology
https://www.readbyqxmd.com/read/27744283/phosphine-resistance-in-adult-and-immature-life-stages-of-tribolium-castaneum-coleoptera-tenebrionidae-and-plodia-interpunctella-lepidoptera-pyralidae-populations-in-california
#10
S G Gautam, G P Opit, E Hosoda
Phosphine resistance in stored-product insects occurs worldwide and is a major challenge to continued effective use of this fumigant. We determined resistance frequencies and levels of resistance in Tribolium castaneum and Plodia interpunctella collected from California almond storage and processing facilities. Discriminating doses of phosphine were established for eggs and larvae of P. interpunctella and eggs of T. castaneum using laboratory susceptible strains of the two species. For T. castaneum and P. interpunctella eggs, discriminating doses were 62...
October 15, 2016: Journal of Economic Entomology
https://www.readbyqxmd.com/read/27744282/evaluation-of-chlorfluazuron-against-subterranean-termites-heterotermes-indicola-isoptera-rhinotermitidae-in-pakistan
#11
Farkhanda Manzoor, Mahnoor Pervez
Baiting systems have been introduced using slow-acting bait toxicants to provide environment-friendly and target-specific termite management. In the present study, the Exterra termite bait system (USA) with chlorfluazuron, a chitin synthesis inhibitor, as the active ingredient was tested against termite colonies. Ten residential areas of Lahore, infested with subterranean termites were selected for the study. The study period was from 2013 to 2015. In-ground stations were installed at 10 sites and above-ground stations were only installed at four test sites...
October 15, 2016: Journal of Economic Entomology
https://www.readbyqxmd.com/read/27744281/primary-screening-of-plant-essential-oils-as-insecticides-fumigants-and-repellents-against-the-health-pest-paederus-fuscipes-coleoptera-staphylinidae
#12
Qiang Zhang, Xuan Wu, Zhiping Liu
The contact and fumigant toxicity as well as repellent activity of 10 plant essential oils were evaluated against Paederus fuscipes Curtis adults. Essential oils were identified through gas chromatography-mass spectrometry analysis. Results showed that wintergreen oil exhibited optimal contact and fumigant toxicity but had no significant repellent activity against P. fuscipes The LC50 values of fumigant toxicity of wintergreen oil were 2.680 and 1.591 µL/L air after 1 and 8 h of exposure, respectively...
October 15, 2016: Journal of Economic Entomology
https://www.readbyqxmd.com/read/27707947/residual-and-systemic-efficacy-of-chlorantraniliprole-and-flubendiamide-against-corn-earworm-lepidoptera-noctuidae-in-soybean
#13
A Adams, J Gore, A Catchot, F Musser, D Cook, N Krishnan, T Irby
Experiments were conducted in Mississippi from 2013 to 2015 to determine the systemic and residual efficacy of chlorantraniliprole and flubendiamide against corn earworm, Helicoverpa zea (Boddie), in soybean. Both insecticides were applied at V4 and R3. Ten leaves that were present at the time of application and 10 newly emerged leaves that were not present at the time of application were collected to measure residual and systemic efficacy, respectively. Ten pods were removed from each plot at R5.5. For all assays, corn earworm larvae were placed on plant material...
October 5, 2016: Journal of Economic Entomology
https://www.readbyqxmd.com/read/27707946/impact-of-citrus-thrips-thysanoptera-thripidae-on-the-growth-and-productivity-of-southern-highbush-blueberries-in-california
#14
David R Haviland, Stephanie M Rill, Joseph G Morse
Citrus thrips, Scirtothrips citri (Moulton), is a foliage-feeding pest of blueberries in the San Joaquin Valley of California. We conducted a 4-yr field study to determine the type and amount of damage caused by this species. Using pesticides, we established gradients of citrus thrips in commercial blueberry fields near Richgrove, CA, in the fall of 2006, 2007, 2009, and 2014. Thrips densities were evaluated weekly for ∼1 mo to determine cumulative thrips-days and correlate levels with the average length of new growth...
October 5, 2016: Journal of Economic Entomology
https://www.readbyqxmd.com/read/27707945/disrupting-mating-behavior-of-diaphorina-citri-liviidae
#15
S Lujo, E Hartman, K Norton, E A Pregmon, B B Rohde, R W Mankin
Severe economic damage from citrus greening disease, caused by 'Candidatus Liberibacter asiaticus' bacteria, has stimulated development of methods to reduce mating and reproduction in populations of its insect vector, Diaphorina citri (Hemiptera: Liviidae). Male D. citri find mating partners by walking on host plants, intermittently producing vibrational calls that stimulate duetting replies by receptive females. The replies provide orientational feedback, assisting the search process. To test a hypothesis that D...
October 5, 2016: Journal of Economic Entomology
https://www.readbyqxmd.com/read/27707944/laboratory-evaluation-of-two-commercial-abamectin-based-insecticides-against-anastrepha-ludens-diptera-tephritidae-lethal-and-sublethal-effects
#16
Francisco Díaz-Fleischer, Diana Pérez-Staples, Javier Valle-Mora, José Antonio García-Pérez
Toxic environmental effects of most insecticides have led to a search for bio-organic insecticides. In this study, we tested the effects of lethal and sublethal exposure to two abamectin-based insecticides (VOLIAM TARGO and LUQ-THOR) on survival, mating, and oviposition of the tephritid Anastrepha ludens (Loew). Different doses of insecticides (0.001-2.00% of the commercial products) were offered mixed with the phagostimulant bait Captor commonly used in spraying and in trapping activities for the control of flies...
October 5, 2016: Journal of Economic Entomology
https://www.readbyqxmd.com/read/27694507/erratum
#17
(no author information available yet)
No abstract text is available yet for this article.
September 30, 2016: Journal of Economic Entomology
https://www.readbyqxmd.com/read/27694506/evaluating-high-release-rate-mch-3-methylcyclohex-2-en-1-one-treatments-for-reducing-dendroctonus-pseudotsugae-coleoptera-curculionidae-infestations
#18
Harrison M Brookes, Darrell W Ross, Tara M Strand, Harold W Thistle, Iral R Ragenovich, Laura L Lowrey
Current recommendations for applying the antiaggregation pheromone 3-methylcyclohex-2-en-1-one (MCH) to protect live trees from Douglas-fir beetle, Dendroctonus pseudotsugae Hopkins, infestation are to space individual passive releasers (MCH bubble capsules) on a 12- by 12-m grid throughout areas to be protected. Previous field studies and a theoretical study using a puff dispersion model to predict pheromone concentrations have shown that releasers emitting higher rates of MCH spaced farther apart may be as effective as the established standard treatment...
September 30, 2016: Journal of Economic Entomology
https://www.readbyqxmd.com/read/27694183/phytophagy-by-the-mullein-bug-hemiptera-miridae-on-apples-feeding-behavior-and-fruit-damage
#19
O Aubry, D Cormier, G Chouinard, E Lucas
The zoophytophagous mullein bug, Campylomma verbasci (Meyer-Dür) (Hemiptera: Miridae), is a beneficial predator of mites and aphids, but also a pest causing damage when it feeds on apples. The aim of this study was to evaluate three different parameters of phytophagy of the mullein bug both in laboratory (phytophagous behavior) and field (fruit damage) tests: 1) apple cultivar, 2) fruit size, and 3) nymphal instar. In the laboratory, nymphs were observed individually for 15 min in Petri dishes containing agar gel and an apple fruitlet to evaluate feeding punctures of four apple cultivars, four fruit sizes, and five nymphal instars...
September 30, 2016: Journal of Economic Entomology
https://www.readbyqxmd.com/read/27694182/demographic-analysis-of-sex-ratio-on-population-growth-of-bactrocera-dorsalis-diptera-tephritidae-with-discussion-of-control-efficacy-using-male-annihilation
#20
Kevin Yu-Bing Huang, Remzi Atlihan, Ayhan Gökçe, Joyce Yu-Bing Huang, Hsin Chi
The life table data for the oriental fruit fly, Bactrocera dorsalis (Hendel), at different adult sex ratios (1♀: 1♂, 1♀: 50♂, 50♀: 1♂ free-choice mating, and 50♀: 1♂ no-choice mating) were collected to determine the effects of sex-ratio manipulation on current pest control procedures. At 1♀: 1♂, females mated, on average, 2.3 times during their lifetime with a mean fecundity (F) of 1,122 eggs. The net reproductive rate (R0), intrinsic rate of increase (r), finite rate (λ), and mean generation time (T) were 561...
September 30, 2016: Journal of Economic Entomology
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