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Journal of Economic Entomology

Sasha-Kay V Clarke, Sherline E Brown
Diaphorina citri Kuwayama (Hemiptera: Psyllidae), also known as the Asian citrus psyllid, is a vector of the citrus huanglongbing (HLB) disease. D. citri transmits all three known strains of the HLB pathogen: Candidatus Liberibacter africanus, Candidatus Liberibacter americanus, and Candidatus Liberibacter asiaticus. The study involved 92 psyllids representing the Caribbean Basin and reference samples representing countries within Asia, North America, and South America. This study was aimed at characterizing D...
July 17, 2018: Journal of Economic Entomology
James Menger, Anthony A Hanson, Robert L Koch
Edamame, Glycine max (L.) Merrill, consumption continues to rise in the United States. Improved understanding of production threats, including insect pests, could facilitate increasing production of edamame in the north-central United States. Two years of complimentary field and laboratory experiments were performed to assess insect pest populations on commercially available edamame varieties. Fourteen varieties of edamame and four grain-type soybean varieties were tested in the laboratory with soybean aphid, Aphis glycines Matsumura (Hemiptera: Aphididae), and subsets of these varieties were tested in the field with naturally occurring insect populations...
July 17, 2018: Journal of Economic Entomology
Wadaka Mamai, Leanne N Lobb, Nanwintoum S Bimbilé Somda, Hamidou Maiga, Hanano Yamada, Rosemary Susan Lees, Jeremy Bouyer, Jeremie R L Gilles
Insect mass-rearing is an essential requirement for the sterile insect technique. Production at a large scale requires the development of standardized rearing procedures to produce good quality males able to compete with wild males to mate with wild females. Three sets of experiments (using trays placed on the table, the whole tray-rack system, and climate-controlled chambers) have been conducted aiming to determine the optimal water temperature and number of eggs to aliquot into each larval rearing tray to achieve the highest production of pupae...
July 17, 2018: Journal of Economic Entomology
Clement Akotsen-Mensah, Joe M Kaser, Tracy C Leskey, Anne L Nielsen
Monitoring insect populations is a fundamental component of integrated pest management programs. In many cropping systems, monitoring is accomplished through captures in baited traps. The aggregation pheromone and pheromone synergist for the invasive Halyomorpha halys (Hemiptera: Pentatomidae) are known. We compared the response of H. halys to commercial lures in peach and apple orchards. Two commercial pheromone formulations, PHEROCON Trécé BMSB ('Trécé') and AgBio Inc. Stink Bug Xtra Combo ('Xtra Combo'), were compared with unbaited traps in peach orchards in 2015 and 2016 and in an apple orchard in 2016...
July 14, 2018: Journal of Economic Entomology
Marcus Vinícius Santana, Renan da S Macedo, Tássia Tuane M Dos Santos, José A F Barrigossi
The rice stalk stink bug Tibraca limbativentris Stal, 1860 (Hemiptera: Pentatomidae) is an important pest of paddy rice (Oryza sativa L.) in South America. Current records of economic injury levels (EILs) and economic thresholds (ETs) for this insect are scarce. In this study, we determined EILs and ETs through cumulative insect-days of T. limbativentris adults in two phenological stages of paddy rice. Five field trials were established for the 2015/16 and 2016/17 crop season. To evaluate the relationship between insect-day and yield, rice plants were infested at V4 and R2 with adult male-female pairs of T...
July 13, 2018: Journal of Economic Entomology
C Di Vitantonio, L Depalo, E Marchetti, M L Dindo, A Masetti
The spread of the multicolored Asian lady beetle Harmonia axyridis (Pallas) (Coleoptera: Coccinellidae) in Europe coincided with the decline of the native Adalia bipunctata (L.) (Coleoptera: Coccinellidae). Both species are predators of aphids in orchards, and differential susceptibility to insecticides used to control fruit pests may contribute to explain the competitive advantage of the invasive over the native species. In this study, the insecticidal activity of imidacloprid and spinetoram was tested on third instars and adults of both ladybird species under laboratory conditions...
July 13, 2018: Journal of Economic Entomology
Thomas Chouvenc
This study evaluated the impact of a non-repellent liquid termiticide (fipronil) and a chitin synthesis inhibitor (CSI) termite bait (noviflumuron) on whole colonies of Coptotermes gestroi (Wasmann) (Blattodea: Isoptera: Rhinotermitidae) in laboratory conditions, over a 12-m foraging distance. The protocol simulated the implementation of remedial treatment of an infested structure, where the colony has multiple access routes, and where only a portion of the population was directly exposed to the treatment. Within 2 wk after the implementation of fipronil, all termites within 1...
July 12, 2018: Journal of Economic Entomology
Fengnian Wu, Jawwad A Qureshi, Jiaquan Huang, Eduardo Gonçalves Paterson Fox, Xiaoling Deng, Fanghao Wan, Guangwen Liang, Yijing Cen
The Diaphorina citri Kuwayama (Hemiptera: Liviidae) also known as Asian citrus psyllid transmits 'Candidatus Liberibacter asiaticus' (CLas) associated with the citrus Huanglongbing (HLB). Minimizing Asian citrus psyllid populations is one of the most important methods for HLB control. The development and survival of Asian citrus psyllid were evaluated on CLas+ and CLas- plants of Citrus reticulata Blanco. cv. Mashuiju (Sapindales: Rutaceae) or Citrus sunki Hort. ex Tanaka (Sapindales: Rutaceae) to assess the effects of CLas infection on vector populations...
July 12, 2018: Journal of Economic Entomology
J W Campbell, C B Kimmel, M Bammer, C Stanley-Stahr, J C Daniels, J D Ellis
Highbush blueberry (Vaccinium corymbosum L.; Ericales: Ericaceae) is an important crop grown throughout the eastern United States and Canada. Cross-pollination by insects greatly enhances pollination and fruit set in highbush blueberry. In Florida, low-chill cultivars that flower during the winter when most bees are dormant are used, thus, making it difficult to utilize and depend on unmanaged bees. We investigated flower visitation rates by managed and wild bees and the subsequent berry formation, berry weight, and number of seeds/berry in highbush blueberry fields in north-central Florida...
July 12, 2018: Journal of Economic Entomology
M A Keena, V Sánchez
The behaviors of Anoplophora glabripennis (Motschulsky) (Coleoptera: Cerambycidae) during inter- and intrasexual interactions between both solitary and paired individuals at different sex ratios were observed on Acer platanoides L. (Sapindales: Sapindaceae) branches in the laboratory. Intrasexual contact was generally ignored by females, but between males resulted in battles from which one male ultimately retreated. When male size differed, larger males won battles, whereas equally sized males split the wins and battled longer...
July 11, 2018: Journal of Economic Entomology
Chaoxing Hu, Jianglong Guo, Xiaowei Fu, Yunxin Huang, Xiwu Gao, Kongming Wu
The brown planthopper Nilaparvata lugens (Stål) (Hemiptera: Delphacidae) is a major, regionally migratory pest of rice crops in Asia. Despite intensive studies, the seasonal pattern of migration in this species remains largely unknown, especially in northern China. Analysis of monitoring data of light trapping at Beihuang island in northern China showed that brown planthopper migrants could be found at the island in any month from July to October. However, the daily number of brown planthopper migrants varied considerably from day to day, month to month, and year to year...
July 11, 2018: Journal of Economic Entomology
Kevin D Chase, Lloyd D Stringer, Ruth C Butler, Andrew M Liebhold, Daniel R Miller, Peter W Shearer, Eckehard G Brockerhoff
Invasions by insects introduced via international trade continue to cause worldwide impacts. Surveillance programs using traps baited with host volatiles and pheromones can detect incursions of nonnative species. We report on two experiments executed to determine if attractants for several insect species can be combined without compromising trap catches and detection ability of target species. In the first experiment, we tested the effect of bark beetle pheromones (plus α-pinene) and trap contact with foliage on trap catches of the brown marmorated stink bug Halyomorpha halys Stål (Hemiptera: Pentatomidae) in traps baited with a mixture of bisabolenes and methyl (E,E,Z)-2,4,6-decatrienoate...
July 11, 2018: Journal of Economic Entomology
Afsane Hosseini, Mojtaba Hosseini, J P Michaud, Mehdi Modarres Awal, Mohammad Ghadamyari
Nitrogen (N) fertilization is a common agricultural practice, which, by increasing the quality of plants, also enhances their nutritional suitability for insect herbivores, creating the possibility of a cascade of N across trophic levels, from plant to herbivore to predator. We manipulated the quality of cucumber plants by fertilizing them with three different N rates (110, 160, and 210 ppm), which represented low, medium, and high N levels, respectively. Colonies of Aphis gossypii Glover (Hemiptera: Aphididae) were then reared on these plants and used as prey for adult Hippodamia variegata (Goeze) (Coleoptera: Coccinellidae) in experiments that characterized the predator's foraging behavior and functional response to different aphid densities...
July 10, 2018: Journal of Economic Entomology
Yang-Yang Liu, Guo-Yong Li, Lin Yang, Hsin Chi, Xiang-Sheng Chen
The population dynamics of the blister beetle, Epicauta impressicornis (Pic) (Coleoptera: Meloidae) had been investigated from 2014 to 2016 in field. The results showed that E. impressicornis is univoltine and overwintered in the fifth instar in the Luodian area of Guizhou, China. The biological and ecological characteristic of the beetle were analyzed at six temperatures (i.e., 21, 24, 27, 30, 33, and 36°C) in the laboratory using the age-stage, two-sex life table. The developmental duration, longevity, and total preoviposition period were significantly shortened with increases in temperatures...
July 10, 2018: Journal of Economic Entomology
Xinyi E, Beibei Li, Bhadriraju Subramanyam
Adults of phosphine-susceptible and -resistant strains of the red flour beetle, Tribolium castaneum (Herbst); lesser grain borer, Rhyzopertha dominica (F.); sawtoothed grain beetle, Oryzaephilus surinamensis (L.); maize weevil, Sitophilus zeamais Motschulsky; and rice weevil, Sitophilus oryzae (L.), were exposed for 2-12 h to a chlorine dioxide gas concentration of 1.40 g/m3 (520 ppm) in an outdoor trailer during July and October of 2015. The mean ± SE temperatures in July and October were 32.8 ± 0.5°C and 24...
July 10, 2018: Journal of Economic Entomology
Yongwen Lin, Feng Chen, Sheng Lin, Peng Huang, Komivi Senyo Akutse, Deyi Yu, Yulin Gao
We attempted to develop an efficient management strategy against gall thrips (Gynaikothrips uzeli Zimmermann (Thysanoptera: Phlaeothripidae)) via the combined application of a systemic insecticide (imidacloprid) and an entomopathogenic fungus (Lecanicillium lecanii Zimmerman (Hypocreales: Clavicipitaceae)). The attraction of G. uzeli to Ficus microcarpa volatiles after imidacloprid treatment was weaker than for untreated plants, which could be due to modulation of volatile metabolite profiles by imidacloprid...
July 10, 2018: Journal of Economic Entomology
Gong-Min Chen, Hsin Chi, Rong-Cheng Wang, Yun-Peng Wang, Yong-Yu Xu, Xiong-Dong Li, Ping Yin, Fang-Qiang Zheng
The development, survival, and fecundity data of Conogethes punctiferalis (Guenée) (Lepidoptera: Crambidae) reared on chestnut (Castanea mollissima Blume), maize (Zea mays L.), sunflower (Helianthus annuus L.), hawthorn (Crataegus pinnatifida Bunge), and apple (Malus domestica Miller) were collected at 25 ± 1°C and 70 ± 5% RH. Raw data were analyzed and compared by using the age-stage, two-sex life table. The mean fecundity (F) was the highest (282.3 eggs per female) when larvae were reared on chestnut...
July 10, 2018: Journal of Economic Entomology
Emilio Hernández, Marysol Aceituno-Medina, Jorge Toledo, Yeudiel Gómez-Simuta, Juan Manuel Villarreal-Fuentes, Morfa Carrasco, Pablo Liedo, Guy J Hallman, Pablo Montoya
The mango fruit cv. 'Ataulfo' niño is an underdeveloped fruit that has a split on the back and a pronounced peak, and among the current total supply of commercialized mangoes cv. 'Ataulfo', approximately 2% are classified as 'Ataulfo' niño, which are strongly infested by Anastrepha ludens (Loew) (Diptera: Tephritidae) and Anastrepha obliqua Mcquart. The objective of this study was to determine the tolerance to 150-Gy generic irradiation for fruit flies of the Anastrepha genus in comparison to the development of a hot water treatment (HWT) as phytosanitary treatments for mango fruits cv...
July 10, 2018: Journal of Economic Entomology
Kanutcharee Thanispong, Sunaiyana Sathantriphop, Rungarun Tisgratog, Krajana Tainchum, Chutipong Sukkanon, Michael J Bangs, Theeraphap Chareonviriyaphap
Malaria is a serious mosquito-borne disease transmitted to humans by Anopheles mosquitoes. Seven species of Anopheles are important malaria vectors in Thailand and all remain susceptible to pyrethroid insecticides, despite decades of use in public health mosquito control programs. However, for a more refined and accurate approach to temporal monitoring of susceptibility patterns to commonly used pyrethroids to control adult Anopheles mosquitoes, it is preferred to have specific concentrations for more discriminating testing...
July 10, 2018: Journal of Economic Entomology
Baljinder Kaur, Vasu Kuraparthy, Jack Bacheler, Hui Fang, Daryl T Bowman
Three hundred and ninety-one Gossypium hirsutum and 34 Gossypium barbadense accessions were screened for thrips resistance under field conditions at the Upper Coastal Plain Research Station in Rocky Mount, North Carolina in years 2014 and 2015. Visual damage ratings, thrips counts, and seedling dry weights were recorded at 2.5, 3.5, and 4.5 wk after planting, respectively. Population density and thrips arrival times varied between years. Data from the three separate damage scoring dates provided a better estimate of resistance or susceptibility to thrips than ratings from the individual dates over the season...
July 9, 2018: Journal of Economic Entomology
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