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Journal of Economic Entomology

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https://www.readbyqxmd.com/read/29771331/a-home-made-trap-baited-with-sex-pheromone-for-monitoring-spodoptera-frugiperda-males-lepidoptera-noctuidae-in-corn-crops-in-mexico
#1
Edi A Malo, Samuel Cruz-Esteban, Francisco J González, Julio C Rojas
Fall armyworm (FAW), Spodoptera frugiperda (J. E. Smith), populations are monitored with a variety of commercial sex pheromone-baited traps. However, a number of trap-related variables may affect the number of FAW males captured. In this study, we tested the effect of trap design, trap size, and trap color for monitoring FAW males in corn crops in Mexico. We found that plastic jug trap (a home-made trap), captured significantly more FAW males than a commercial trap (Scentry Heliothis) and water bottle trap (another home-made trap)...
May 15, 2018: Journal of Economic Entomology
https://www.readbyqxmd.com/read/29767753/benzaldehyde-synergizes-the-response-of-female-xyleborinus-saxesenii-coleoptera-curculionidae-scolytinae-to-ethanol
#2
Chang Yeol Yang, Junheon Kim, Hyeong-Hwan Kim
The ambrosia beetle, Xyleborinus saxesenii Ratzeburg (Coleoptera: Curculionidae, Scolytinae), infests physiologically stressed apple and peach trees in Korea. Dispersing females utilize the degradation product ethanol and host-related volatiles to locate and colonize new host trees. We examined the extent to which 12 chemicals emitted from fruit trees act synergistically with ethanol to attract X. saxesenii. The addition of benzaldehyde to ethanol significantly increased beetle attraction, although benzaldehyde was not attractive by itself...
May 15, 2018: Journal of Economic Entomology
https://www.readbyqxmd.com/read/29767740/corrigendum-to-long-term-empirical-and-observational-evidence-of-practical-helicoverpa-zea-resistance-to-cotton-with-pyramided-bt-toxins
#3
(no author information available yet)
No abstract text is available yet for this article.
May 15, 2018: Journal of Economic Entomology
https://www.readbyqxmd.com/read/29767736/pollination-of-granadilla-passiflora-ligularis-benefits-from-large-wild-insects
#4
Catalina Gutiérrez-Chacón, Felix Fornoff, Rodulfo Ospina-Torres, Alexandra-Maria Klein
The contribution of wild pollinators to food production has recently been assessed for many crops, although it remains unclear for several tropical crops. Granadilla (Passiflora ligularis Juss), a crop native to the tropical Andes, is one such crop where a gap exists regarding comprehensive knowledge about its pollination system. In a field experiment in the Colombian Andes, we 1) describe flower visitors in terms of visit quantity (visitation rate) and quality (touches of flower-reproductive structures), 2) assess the pollination system by comparing fruit set and fruit weight per flower in three pollination treatments: pollinator exclusion, open pollination, and supplementary pollination, and 3) evaluate pollination deficits (difference between open and supplementary pollination) in relation to pollinator density...
May 15, 2018: Journal of Economic Entomology
https://www.readbyqxmd.com/read/29762719/repellence-of-common-tobacco-flavorants-on-lasioderma-serricorne-coleoptera-anobiidae
#5
Hongfei Zhang, Weizheng Li, Jingjing An, Gaoping Wang, Xianru Guo, Pu Hu, Guohui Yuan
The cigarette beetle, Lasioderma serricorne (F.) (Coleoptera: Anobiidae) is a destructive pest species of tobacco. Olfactory repellents derived from permitted tobacco flavorants have the advantage of not adversely effecting tobacco flavor. Among 12 test compounds, neral exhibited the strongest repellent effect. Among six binary blends prepared, three blends (neral + ethyl cinnamate, neral + cinnamaldehyde, and neral + methyl cinnamate) evoked the strongest repellent response. The interactions between neral and any one of the cinnamic acid derivatives were additive, and the interactions between neral and the cinnamic acid derivatives were antagonistic...
May 12, 2018: Journal of Economic Entomology
https://www.readbyqxmd.com/read/29757415/insects-for-income-generation-through-animal-feed-effect-of-dietary-replacement-of-soybean-and-fish-meal-with-black-soldier-fly-meal-on-broiler-growth-and-economic-performance
#6
V O Onsongo, I M Osuga, C K Gachuiri, A M Wachira, D M Miano, C M Tanga, S Ekesi, D Nakimbugwe, K K M Fiaboe
The ever-increasing animal feed costs are driving many vulnerable communities involved in animal husbandry out of business. The high cost is mainly driven by the protein source, which represents the most expensive component in animal feed. In conventional feed, protein is obtained mainly from soybean and fish meal (SFM). The present study explored potential of partially replacing this SFM with black soldier fly prepupae meal (BSFPM) in Cobb 500 broiler chicken diets. A SFM-based diet was compared to three experimental diets formulated by partially substituting SFM with BSFPM at 13...
May 11, 2018: Journal of Economic Entomology
https://www.readbyqxmd.com/read/29757437/fumigation-activity-of-ethyl-formate-and-phosphine-against-tetranychus-urticae-acari-tetranychidae-on-imported-sweet-pumpkin
#7
Jae Seon Lee, Hyun Kyung Kim, Yejin Kyung, Geun-Ho Park, Byung-Ho Lee, Jeong-Oh Yang, Hyun-Na Koo, Gil-Hah Kim
This study investigated an alternative fumigant for imported sweet pumpkin. Laboratory fumigations with ethyl formate (EF) and phosphine (PH3) alone and in combination were conducted at different temperatures in 12-liter desiccators to determine their efficacy and synergism against adults and eggs of two-spotted spider mites (Tetranychus urticae Koch), a major pest of sweet pumpkins; larger scale fumigations with EF were also performed to evaluate the impact of EF fumigation on the postharvest quality of sweet pumpkin and EF absorption...
May 10, 2018: Journal of Economic Entomology
https://www.readbyqxmd.com/read/29746645/pollen-collection-honey-production-and-pollination-services-managing-honey-bees-in-an-agricultural-setting
#8
Shelley E Hoover, Lynae P Ovinge
Hybrid canola seed production is an important pollination market in Canada; typically both honey bees (Apis mellifera L. (Hymenoptera: Apidae)) and Alfalfa Leafcutting bees (Megachile rotundata Fab. (Hymenoptera: Megachilidae)) are concurrently managed to ensure pollination in this high-value crop. Beekeepers are paid to provide pollination services, and the colonies also produce a honey crop from the canola. Pollen availability from male-fertile plants is carefully managed in this crop to provide an abundance of pollen to fertilize male-sterile ('female') plants...
May 9, 2018: Journal of Economic Entomology
https://www.readbyqxmd.com/read/29741710/response-to-short-term-cold-storage-for-eggs-of-agasicles-hygrophila-coleoptera-chrysomelidae-a-biological-control-agent-of-alligator-weed-alternanthera-philoxeroides-caryophyllales-amaranthaceae
#9
Yan-Hong Liu, Dong Jia, Xiao-Fang Yuan, Yuan-Xin Wang, Hsin Chi, Thomas James Ridsdill-Smith, Rui-Yan Ma
The alligator weed flea beetle, Agasicles hygrophila Selman & Vogt (Coleoptera: Chrysomelidae) has been used very successfully for the biological control of the widely-distributed invasive weed Alternanthera philoxeroides (Mart.) Griseb (Caryophyllales: Amaranthaceae). In order to extend the 'shelf life' of natural enemies released in biological control programs, cold storage has proven to be a valuable commercial procedure. To determine a suitable low temperature for storage of A. hygrophila, we conducted short-term cold storage treatments of eggs (4°C for 0...
May 8, 2018: Journal of Economic Entomology
https://www.readbyqxmd.com/read/29741635/irradiation-for-quarantine-control-of-coffee-berry-borer-hypothenemus-hampei-coleoptera-curculionidae-scolytinae-in-coffee-and-a-proposed-generic-dose-for-snout-beetles-coleoptera-curculionoidea
#10
Peter A Follett
Coffee berry borer (CBB), Hypothenemus hampei (Ferrari) (Coleoptera: Curculionidae: Scolytinae), is the most serious insect pest of coffee worldwide. Green coffee used in blending and roasting is traded between countries and may be subjected to fumigation for disinfestation of CBB. For example, green coffee shipped to Hawaii from the U.S. mainland must be treated with methyl bromide. Irradiation is an alternative disinfestation treatment option. Dose-response tests were conducted with adult beetles to identify a sterilizing dose, followed by large-scale confirmatory tests with adults infesting coffee berries at 100 Gy (measured doses 84-102 Gy)...
May 5, 2018: Journal of Economic Entomology
https://www.readbyqxmd.com/read/29726954/heterologous-co-expression-of-cyp6b7-and-nadph-dependent-cytochrome-p450-reductase-from-helicoverpa-armigera-lepidoptera-noctuidae-in-pichia-pastoris
#11
Chunqing Zhao, Genmiao Song, Kristopher Silver, Tao Tang, Chen Wang, Lihong Qiu
As important metabolic enzymes, the function of cytochrome P450 monooxygenases (CYPs) has been demonstrated repeatedly through various means, including heterologous expression systems. Unfortunately, most model systems typically lack expression of a conspecific NADPH-dependent cytochrome P450 reductase (CPR), which is the electron transfer partner of CYPs. As a result, the activities of heterologously expressed insect CYPs may not accurately reflect detoxification activities in vivo. Previously, CYP6B7 from Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) (HaCYP6B7) has been expressed in the Pichia pastoris GS115 strain and shown to detoxify bifenthrin, fenvalerate and chlorpyrifos...
May 3, 2018: Journal of Economic Entomology
https://www.readbyqxmd.com/read/29726947/when-predators-avoid-predation-by-their-con-and-heterospecific-competitors-non-consumptive-effects-mediate-foraging-behavior-and-prey-handling-time-of-predators
#12
Mohamed H Bayoumy, Marwa M Ramadan
Aphids show highly aggregated distributions, and thus their predators tend to aggregate as well, creating conditions optimal to consumptive and non-consumptive (N-CEs) effects among competing predators, both conspecific and heterospecific. If predatory larvae are themselves potential prey for other predators, they may be also sensitive to N-CEs imposed by their con- or heterospecifics. A partitioned Petri-dish that permitted the passage of visual and chemical signals was used to examine the N-CEs of predator on foraging behavior of other predators, as prey themselves...
May 3, 2018: Journal of Economic Entomology
https://www.readbyqxmd.com/read/29726945/incidence-of-grapevine-leafroll-disease-effects-of-grape-mealybug-pseudococcus-maritimus-abundance-and-pathogen-supply
#13
Monica L Cooper, Matthew P Daugherty, Daniel R Jeske, Rodrigo P P Almeida, Kent M Daane
Studies of spatiotemporal dynamics are central to efforts to characterize the epidemiology of infectious disease, such as mechanism of pathogen spread and pathogen or vector sources in the landscape, and are critical to the development of effective disease management programs. To that end, we conducted a multi-year study of 20 vineyard blocks in coastal northern California to relate the dynamics of a mealybug vector, Pseudococcus maritimus (Ehrhorn) (Hemiptera: Pseudococcidae), to incidence of grapevine leafroll disease (GLD)...
May 3, 2018: Journal of Economic Entomology
https://www.readbyqxmd.com/read/29718401/inter-and-intra-specific-differentiation-of-trichogramma-hymenoptera-trichogrammatidae-species-using-pcr-rflp-targeting-coi
#14
Hai-Qing Hua, Zi-Yi Zhao, Yang Zhang, Jin Hu, Fan Zhang, Yuan-Xi Li
The identification of Trichogramma (Hymenoptera: Trichogrammatidae) species is problematic due to their small size and lack of distinct morphological characters. In this study, we combined morphological characters of the male genitalia and molecular methods using the mitochondrial cytochrome oxidase I (COI) gene as a molecular marker to identify eight species from 16 geographic populations: T. evanescens Westwood, T. cacoeciae Marchal, T. ostriniae Pang et Chen, T. chilonis Ishii, T. japonicum Ashmead, T. brassicae Bezdenko, T...
May 1, 2018: Journal of Economic Entomology
https://www.readbyqxmd.com/read/29718285/associations-between-the-small-hive-beetle-and-the-yeast-kodamaea-ohmeri-throughout-the-host-life-cycle
#15
Brogan A Amos, Diana L Leemon, Richard A Hayes, Bronwen W Cribb, Michael J Furlong
The small hive beetle, Aethina tumida Murray (Coleoptera: Nitidulidae), is a pest of colonies of social bees, including the honeybee Apis mellifera L. (Hymenoptera: Apidae). We investigated A. tumida oviposition behavior and development and found that it laid eggs in clutches that ranged in size (3-75 eggs per clutch) and that when fed on hive products in laboratory culture (27°C; RH 65%; 12:12 (L:D) h) it completed three larval instars before pupation. The yeast Kodamaea ohmeri (Etchells & Bell) Y. Yamada, T...
May 1, 2018: Journal of Economic Entomology
https://www.readbyqxmd.com/read/29718272/handling-artificially-terminated-events-in-electropenetrography-data
#16
Timothy A Ebert, Elaine A Backus, Michael E Rogers
Electropenetrography a.k.a. electrical penetration graph or EPG is a rigorous technique for studying arthropod behavior. Essentially, the arthropod and host are part of an electrical circuit that generates patterns of voltage (waveforms), whose biological meanings are defined by correlation with histology and behavior. EPG is used for studying stylet probing behavior of hemipterans, and blood-feeding arthropods. These results are applied to understanding pesticide action, host plant resistance, and vector-pathogen-host interactions...
April 28, 2018: Journal of Economic Entomology
https://www.readbyqxmd.com/read/29697826/attraction-of-moths-of-two-noctuidae-species-to-field-traps-baited-with-a-mixture-of-two-to-three-homologous-acetates-in-poland
#17
J Grodner, K Swiech, M Jakubowska, J Bocianowski
Field trials of a series of monounsaturated straight-chain acetates, including the (Z)-5-tetradecenyl acetate, (Z)-9-tetradecenyl acetate (pheromone blend A) and (Z)-5-decenyl acetate, (Z)-7-dodecenyl acetate, (Z)-9-tetradecenyl acetate (pheromone blend B), attracted the following species from the title family: Agrotis exclamationis (Linnaeus) and Agrotis segetum (Denis & Schiffermüller), respectively. Cutworms were monitored in the 2016-2017 season with the use of white Delta-type traps and different pheromone dispensers that contained above blends...
April 25, 2018: Journal of Economic Entomology
https://www.readbyqxmd.com/read/29688507/plant-resistance-to-colorado-potato-beetle-coleoptera-chrysomelidae-in-diploid-f2-families-derived-from-crosses-between-cultivated-and-wild-potato
#18
Michael S Crossley, Sean D Schoville, Darrin M Haagenson, Shelley H Jansky
Colorado potato beetle, Leptinotarsa decemlineata Say (Coleoptera: Chrysomelidae), is a serious global pest of potato, Solanum tuberosum L. Management of L. decemlineata has relied heavily on insecticides, but repeated evolution of insecticide resistance has motivated the exploration and development of alternative strategies, such as plant resistance. The recent development of two diploid potato families derived from crosses between cultivated and wild potato species (S. chacoense and S. berthaultii) has provided a unique opportunity to reexamine plant traits for resistance breeding...
April 24, 2018: Journal of Economic Entomology
https://www.readbyqxmd.com/read/29688446/evaluation-of-nasonov-pheromone-dispensers-for-pollinator-attraction-in-apple-blueberry-and-cherry
#19
J Williamson, C G Adams, R Isaacs, L J Gut
Declines in the number of commercial honey bees (Apis mellifera L.) (Hymenoptera: Apidae) and some wild bee species around the world threaten fruit, nut, and vegetable production and have prompted interest in developing methods for gaining efficiencies in pollination services. One possible approach would be to deploy attractants within the target crop to increase the number of floral visits. In this study, we evaluate two new pollinator attractants, Polynate and SPLAT Bloom, for their ability to increase pollinator visitation and fruit set in apple (Malus pumila Mill...
April 23, 2018: Journal of Economic Entomology
https://www.readbyqxmd.com/read/29688422/spatial-and-temporal-distribution-of-soil-applied-neonicotinoids-in-citrus-tree-foliage
#20
Kevin W Langdon, Rhonda Schumann, Lukasz L Stelinski, Michael E Rogers
Diaphorina citri Kuwayama (Hemiptera: Liviidae) is the insect vector of Candidatus Liberibacter asiaticus (CLas), the presumed cause of huanglongbing (HLB) in citrus (Rutaceae). Soil-applied neonicotinoids are used to manage vector populations and thus reduce the spread of HLB in Florida citrus. Studies were conducted in the greenhouse and field to quantify the spatial and temporal distribution of three neonicotinoid insecticides within individually sampled leaves and throughout the tree canopy. Following field application, no difference in parent material titer was observed between leaf middles versus leaf margins following application of Platinum 75SG or Belay 2...
April 23, 2018: Journal of Economic Entomology
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