61 research outputs found
Density and phenology of the invasive mealybug Delottococcus aberiae on citrus: implications for integrated pest management
[EN] Delottococcus aberiae De Lotto (Hemiptera: Pseudococcidae) is a new invasive citrus pest in Spain. It causes severe fruit distortions and, as a new invasive mealybug, there is a lack of information about its biology. This research aims to examine the seasonal trend of D. aberiae in citrus, using several sampling methods, as a first step to develop an integrated pest management program. Ten citrus orchards from Eastern Spain were periodically sampled during three years using absolute (plant material) and relative (corrugated cardboard band traps and sticky traps) sampling methods. The three sampling methods showed that D. aberiae completes multiple generations per year, two of them being clearly defined and resulting in high populations. D. aberiae peaked between May and June, damaging the developing fruit. Corrugated cardboard band traps were able to detect prepupa and pupa male instars and gravid females, providing a quantitative measurement of D. aberiae density at its first population peak. The use of corrugated cardboard band traps is recommended to monitor population levels and sticky traps to determine male flight periods, representing simple sampling techniques to monitor D. aberiae. These results will improve the sampling protocols and allow for the development of an integrated pest management program.We would like to thank the owners of the orchards for allowing us to use their plantations and P. Bru (IVIA) and J. Catalan (IVIA) for their help in sampling. This research was supported by two predoctoral grants (FPU to V. Martinez-Blay and Val I + d to J. Perez-Rodriguez from the Spanish Ministry of Education, Culture and Sport and Generalitat Valenciana, respectively), the European Grants FP7-IAPP #324475 'Colbics' and FP7-IRSES #612566 'Biomodic,' and a national project provided by INIA (Project No. RTA2014-00067). The authors thank Debra Westall (UPV) for revising the manuscript.Martínez-Blay, V.; Pérez-Rodríguez, J.; Tena, A.; Soto Sánchez, AI. (2018). Density and phenology of the invasive mealybug Delottococcus aberiae on citrus: implications for integrated pest management. Journal of Pest Science. 91(2):625-637. https://doi.org/10.1007/s10340-017-0928-yS625637912Afifi SA (1968) Morphology and taxonomy of the adult males of the families Pseudococcidae and Eriococcidae: (Homoptera:Coccoidea). Bull Br Mus (Nat Hist) Entomol, Suppl 13. LondonAgustí M (2003) Citricultura. Mundi-Prensa, MadridBahder BW, Naidu RA, Daane KM, Millar JG, Walsh DB (2013) Pheromone-based monitoring of Pseudococcus maritimus (Hemiptera:Pseudococcidae) populations in concord grape vineyards. J Econ Entomol 106:482–490. doi: 10.1603/ec12138Bartlett BR, Clancy DW (1972) The comstock mealybug in California and observations on some of its natural enemies. J Econ Entomol 65:1329–1332Beardsley JW (1960) A preliminary study of the males of some hawaiian mealybugs (Homoptera: Pseudococcidae). Proc Hawaii Entomol Soc 16:199–243Beltrà A, Soto A (2012) Pseudocóccidos de importancia agrícola y ornamental en España. Editorial Universitat Politècnica de València, SpainBeltrà A, Soto A, Germain J-F, Matile-Ferrero D, Mazzeo G, Pellizzari G, Russo A, Franco JC, Williams DJ (2010) The Bougainvillea mealybug Phenacoccus peruvianus, a rapid invader from South America to Europe. Entomol Hellenica 19:137–143Beltrà A, Soto A, Malausa T (2012) Molecular and morphological characterisation of Pseudococcidae surveyed on crops and ornamental plants in Spain. Bull Entomol Res 102:165–172. doi: 10.1017/S0007485311000514Beltrà A, Garcia-Marí F, Soto A (2013a) El cotonet de Les Valls, Delottococcus aberiae, nueva plaga de los cítricos. Levante Agrícola 419:348–352Beltrà A, Garcia-Marí F, Soto A (2013b) Seasonal phenology, spatial distribution, and sampling plan for the invasive mealybug Phenacoccus peruvianus (Hemiptera: Pseudococcidae). J Econ Entomol 106:1486–1494. doi: 10.1603/ec13024Beltrà A, Tena A, Soto A (2013c) Reproductive strategies and food sources used by Acerophagus n. sp. near coccois, a new successful parasitoid of the invasive mealybug Phenacoccus peruvianus. J Pest Sci 86:253–259. doi: 10.1007/s10340-012-0475-5Beltrà A, Addison P, Avalos JA, Crochard D, Garcia-Mari F, Guerrieri E, Giliomee JH, Malausa T, Navarro-Campos C, Palero F, Soto A (2015) Guiding classical biological control of an invasive mealybug using integrative taxonomy. PLoS ONE 10:e0128685. doi: 10.1371/journal.pone.0128685Ben-Dov Y (1994) A systematic catalogue of the mealybugs of the world (Insecta: Homoptera: Coccoidea: Pseudococcidae and Putoidae), with data on geographical distribution, host plants, biology and economic importance. Intercept Limited, AndoverUKBlumberg D, Ben-Dov Y, Mendel Z (1999) The citrulus mealybug, Pseudococcus cryptus Hempel, and its natural enemies in Israel: history and present situation. Entomologica 33:141–152Browning TO (1959) The long-tailed mealybug, Pseudocuccus aonidum (L.), in South Australia. J Agric Res 10:322–339De Lotto G (1961) New Pseudococcidae (Homoptera: Coccoidea) from Africa. Bull Br Mus (Nat Hist) Entomol 10:211–238De Villiers M, Pringle KL (2007) Seasonal occurrence of vine pests in commercially treated vineyards in the Hex River Valley in the Western Cape Province, South Africa. Afr Entomol 15:241–260DeBach P (1949) Population studies of the long-tailed mealybug and its natural enemies on citrus trees in Southern California. Ecology 30:14–25Franco J (1994) Citrus phenology as a basis to study the population dynamics of the citrus mealybug complex in Portugal. In: Tribulato E, Gentile A, Reforgiato G (eds) Proceedings of the international society of citriculture, vol 3, pp 929–930Franco JC, Silva EB, Carvalho JP (2000) Cochonilhas-algodão (Hemiptera, Pseudococcidae) associadas aos citrinos em Portugal. ISA Press, LisboaFranco JC, Suma P, Silva EB, Blumberg D, Mendel Z (2004) Management strategies of mealybug pests of citrus in mediterranean countries. Phytoparasitica 32:507–522Franco JC, Zada A, Mendel Z (2009) Novel approaches for the management of mealybug pests. In: Ishaaya I, Horowitz AR (eds) Biorational control of arthropod pests: application and resistance managements. Springer, Netherlands, pp 233–278. doi: 10.1007/978-90-481-2316-2_10Furness G (1976) The dispersal, age-structure and natural enemies of the long-tailed mealybug, Pseudocccus longispinus (Targioni-Tozzetti), in relation to sampling and control. Aust J Zool 24:237–247García-Morales M, Denno BD, Miller DR, Miller GL, Ben-Dov Y, Hardy NB (2016) ScaleNet: a literature-based model of scale insect biology and systematics. Database (Oxford) 2016:1–5. doi: 10.1093/database/bav118Geiger CA, Daane KM (2001) Seasonal movement and distribution of the grape mealybug (Homoptera: Pseudococcidae): developing a sampling program for San Joaquin Valley vineyards. J Econ Entomol 94:291–301. doi: 10.1603/0022-0493-94.1.291Gonzalez D (1971) Sampling as a basis for pest management strategies. In: Komarek EV (ed) Proceedings of the tall timbers conference on ecological animal control by habitat management, vol 2, pp 83–101Goolsby J, Kirk A, Meyerdirk DE (2002) Seasonal phenology and natural enemies of Maconellicoccus hirsutus (Hemiptera: Pseudococcidae) in Australia. Fla Entomol 85:494–498Grimes E, Cone W (1985) Life history, sex attraction, mating and natural enemies of the grape mealybug, Pseudococcus maritimus (Homoptera: Pseudococcidae). Ann Entomol Soc Am 78:554–558Grout TG, Richards GI (1991) Value of pheromone traps for predicting infectations of red scale Aonidiella aurantii (Maskell) (Hom., Diaspididae), limited by natural enemy activity and insecticides used to control citrus thrips, Scirtothrips aurantii Faure (Thys., Thripidae). J Appl Entomol 111:20–27Gullan PJ, Martin J (2009) Sternorrhyncha (jumping plant-lice, whiteflies, aphids, and scale insects). In: Vincent H, Resh RTC (eds) Encyclopedia of insects. Elsevier, San Diego, pp 957–967Hall DG, Roda A, Lapointe SL, Hibbard K (2008) Phenology of Maconellicoccus hirsutus (Hemiptera: Pseudococcidae) in Florida based on attraction of adult males to pheromone traps. Fla Entomol 91:305–310Hardy NB, Gullan PJ, Hodgson CJ (2008) A subfamily-level classification of mealybugs (Hemiptera: Pseudococcidae) based on integrated molecular and morphological data. Syst Entomol 33:51–71Hattingh V, Cilliers C, Bedford E (1998) Citrus mealybugs. In: Bedford E, Van den Berg M, De Villiers E (eds) Citrus pests in the Republic of South Africa. ARC-ITSC, South Africa, pp 112–120Haviland DR, Beede RH, Daane KM (2012) Seasonal phenology of Ferrisia gilli (Hemiptera: Pseudococcidae) in commercial pistachios. J Econ Entomol 105:1681–1687. doi: 10.1603/ec12070Hulme PE, Bacher S, Kenis M, Klotz S, Kühn I, Minchin D, Nentwig W, Olenin S, Panov V, Pergl J, Pyšek P, Roques A, Sol D, Solarz W, Vilà M (2008) Grasping at the routes of biological invasions: a framework for integrating pathways into policy. J Appl Ecol 45:403–414. doi: 10.1111/j.1365-2664.2007.01442.xIslam KS, Copland MJW (1997) Host preference and progeny sex ratio in a solitary koinobiont mealybug endoparasitoid, Anagyrus pseudococci (Girault), in response to its host stage. Biocontrol Sci Technol 7:449–456. doi: 10.1080/09583159730857Jervis MA, Copland MJW, Harvey JA (2005) The lyfe-cycle. In: Jervis MA (ed) Insect as natural enemies: a practical perspective. Springer, Dordrecht, pp 73–165Kenis M, Auger-Rozenberg MA, Roques A, Timms L, Péré C, Cock MJW, Settele J, Augustin S, Lopez-Vaamonde C (2009) Ecological effects of invasive alien insects. In: Langor DW, Sweeney J (eds) Ecological impacts of non-native invertebrates and fungi on terrestrial ecosystems. Springer, Netherlands, pp 21–45. doi: 10.1007/978-1-4020-9680-8_3Kozár F (1989) Microhabitat specialization and similarity of scale-insect assemblages on different fruit trees and in different countries. Ecol Entomol 14:175–180Lacirignola C, D’Onghia AM (2009) The Mediterranean citriculture: productions and perspectives. In: D’Onghia AM, Djelouah K, Roistacher CN (eds) Citrus tristeza virus and Toxoptera citricidus: a serious threat to the Mediterranean citrus industry. Options Méditerranéennes: Série B. Etudes et Recherches, vol 65. CIHEAM, Bari, pp 13–17Longo S, Mazzeo G, Russo A (1995) Biological observations on some scale insects (Homoptera: Coccoidea) in Sicily. Isr J Entomol 29:219–222Mansour R, Grissa-Lebdi K, Suma P, Mazzeo G, Russo A (2017) Key scale insects (Hemiptera: Coccoidea) of high economic importance in a Mediterranean area: host plants, bio-ecological characteristics, natural enemies and pest management strategies—a review. Plant Prot Sci 53:1–14. doi: 10.17221/53/2016-ppsMartínez-Ferrer MT, García-Marí F, Ripollés JL (2003) Population dynamics of Planococcus citri (Risso) (Homoptera: Pseudococcidae) in citrus groves in Spain. IOBC-WPRS Bull 26:149–161Martínez-Ferrer MT, Ripollés JL, Garcia-Marí F (2006) Enumerative and binomial sampling plans for citrus mealybug (Homoptera: Pseudococcidae) in citrus groves. J Econ Entomol 99:993–1001. doi: 10.1603/0022-0493-99.3.993Mazzeo G, Russo A, Suma P (1999) Phenacoccus solani ferris (Homoptera: Coccoidea) on ornamental plants in Italy. Boll Zool agr Bachic 31:31–35Mazzeo G, Longo S, Pellizzari G, Porcelli F, Suma P, Russo A (2014) Exotic scale insects (Coccoidea) on ornamental plants in Italy: a never-ending story. Acta Zool Bulg 6:55–61McKenzie HL (1967) Mealybugs of California, with taxonomy, biology, and control of North American species (Homoptera: Coccoidea: Pseudococcidae). Cambridge University Press, BerkeleyMendel Z, Watson GW, Protasov A, Spodek M (2016) First record of the papaya mealybug, Paracoccus marginatus Williams & Granara de Willink (Hemiptera: Coccomorpha: Pseudococcidae), in the Western Palaearctic. EPPO Bull 46:580–582. doi: 10.1111/epp.12321Meyerdirk DE, Newell IM (1979) Seasonal development and flight activity of Pseudocccus comstocki in California. Ann Entomol Soc Am 72:492–494Meyerdirk DE, Newell IM, Warkentin RW (1981) Biological control of comstock mealybug. J Econ Entomol 74:79–84Meyerdirk DE, Warkentin R, Attavien B, Gersabeck E, Fracis A, Adams M, Francis G (2001) Biological control of pink hibiscus mealybug project manual. United States Department of Agriculture (USDA), WashingtonMillar JG, Daane KM, McElfresh JS, Moreira JA, Malakar-Kuenen R, Guillén M, Bentley WJ (2002) Development and optimization of methods for using sex pheromone for monitoring the mealybug Planococcus ficus (Homoptera: Pseudococcidae) in California vineyards. J Econ Entomol 95:706–771Miller DR, Giliomee JH (2011) Systematic revision of the mealybug genus Delottococcus Cox & Ben-Dov (Hemiptera: Pseudococcidae). Afr Entomol 19:614–640Miller DR, Miller GL, Watson GW (2002) Invasive species of mealybugs (Hemiptera: Pseudococcidae) and their threat to U.S. agriculture. Proc Entomol Soc Wash 104:825–836Moreno DS, Reed DK, Shaw JG, Newell IM (1972) Sex lure survey trap for comstock mealybug. Citograph 58(43):68Moreno DS, Fargerlund J, Ewart WH (1984) Citrus mealybug (Homoptera: Pseudococcidae): behavior of males in response to sex pheromone in laboratory and field. Ann Entomol Soc Am 77:32–38Mudavanhu P (2009) An investigation into the integrated pest management of the obscure mealybug, Pseudococcus viburni (Signoret) (Hemiptera: Pseudococcidae), in pome fruit orchards in the Western Cape Province, South Africa. Dissertation, University of StellenboschMudavanhu P, Addison P, Pringle Ken L (2011) Monitoring and action threshold determination for the obscure mealybug Pseudococcus viburni (Signoret) (Hemiptera: Pseudococcidae) using pheromone-baited traps. Crop Prot 30:919–924. doi: 10.1016/j.cropro.2011.02.034Panis A (1986) Biological features of Pseudococcus affinis (Mask.) (Homoptera, Pseudococcidae) as guidelines of its control in water-sprinkled citrus orchards. In: Cavalloro R, Di Martino E (eds) Integrated pest control in citrus groves. Proceedings of the expert’s meetings, pp 59–65Pellizzari G (2005) Cocciniglie nuove o poco note potenzialmente dannose per l’Italia: Fiorinia pinicola Maskell, Pseudococcus comstocki (Kuwana), Peliococcus turanicus (Kiritshenko). Inf Fitopatol 55:20–25Pellizzari G, Germain J-F (2010) Scales (Hemiptera, Superfamily Coccoidea), Chapter 9.3. BioRisk 4:475–510. doi: 10.3897/biorisk.4.45Pellizzari G, Porcelli F (2014) Alien scale insects (Hemiptera Coccoidea) in European and Mediterranean countries: the fate of new and old introductions. Phytoparasitica 42:713–721. doi: 10.1007/s12600-014-0414-5Pimentel D, McNair S, Janecka J, Wightman J, Simmonds C, O’Connell C, Wong E, Russel L, Zern J, Aquino T, Tsomondo T (2001) Economic and environmental threats of alien plant, animal, and microbe invasions. Agric Ecosyst Environ 84:1–20Roltsch WJ, Meyerdirk DE, Warkentin R, Andress ER, Carrera K (2006) Classical biological control of the pink hibiscus mealybug, Maconellicoccus hirsutus (Green), in southern California. Biol Control 37:155–166. doi: 10.1016/j.biocontrol.2006.01.006Roques A, Rabitsch W, Rasplus J-Y, Lopez-Vaamonde C, Nentwig W, Kenis M (2009) Alien terrestrial invertebrates of Europe. In: DAISIE (ed) Handbook of alien species in Europe, vol 3. Springer, The Netherlands, pp 63–79. doi: 10.1007/978-1-4020-8280-1Rotundo G, Tremblay E (1975) Sull’attrattività delle femmine vergini di due specie di Pseudococcidi (Homoptera Coccoidea) per un Imenottero parassita (Hymenoptera Chalcidoidea). Boll Lab Entomol Agr Portici 32:172–179Samways MJ (1988) Comparative monitoring of red scale Aonidiella aurantii (Mask.) (Hom., Diaspididae) and its Aphytis spp. (Hym., Aphelinidae) parasitoids. J Appl Entomol 105:483–489Santorini A (1977) Etude de quelques caractères biologiques de Planococcus citri (Risso) en Grèce (Homoptera, Coccoidea, Pseudococcidae). Fruits 32:611–612Serrano MS, Lapointe SL, Meyerdirk DE (2001) Attraction of males by virgin females of the mealybug Maconellicoccus hirsutus (Hemiptera: Pseudococcidae). Popul Ecol 30:339–345Soto A, Martínez-Blay V, Beltrà A, Pérez-Rodríguez J, Tena A (2016a) Delottococcus aberiae (De Lotto) (Hemiptera: Pseudococcidae), comportamiento de la plaga en parcelas de cítricos valencianos. Phytoma 277:49–53Soto A, Martínez-Blay V, Benito M, Beltrà A (2016b) Delottococcus aberiae (De Lotto) (Hemiptera: Pseudococcidae): viabilidad de su control biológico. Phytoma 284:85–87Suckling DM (2000) Issues afecting the use of pheromones and other semiochemicals in orchards. Crop Prot 19:677–683Suma P, Mazzeo G, La Pergola A, Nucifora S, Russo A (2015) Establishment of the pineapple mealybug Dysmicoccus brevipes (Hemiptera: Pseudococcidae) in Italy. EPPO Bull 45:218–220. doi: 10.1111/epp.12206Sun J, Clarke SR, DeBarr GL, Berisford CW (2002) Yellow sticky traps for monitoring males and two parasitoids of Oracella acuta (Lobdell) (Homoptera: Pseudococcidae). J Entomol Sci 37:177–181Tena A, García-Marí F (2011) Current situation of citrus pests and diseases in the Mediterranean basin. IOBC/WPRS Bull 62:365–378Tena A, Catalán J, Bru P, Urbaneja A (2014) Delottococcus aberiae, nueva plaga de cítricos. Agricultura 978:746–748Tena A, García-Bellón J, Urbaneja A (2017) Native and naturalized mealybug parasitoids fail to control the new citrus mealybug pest Delottococcus aberiae. J Pest Sci 90:659–667. doi: 10.1007/s10340-016-0819-7Tremblay E, Tranfaglia A, Rotundo G, Iaccarino F (1977) Osservazioni comparate su alcune specie di Pseudococcidi (Homoptera: Coccoidea). Boll Lab Entomol Agr Portici 34:113–135Walton VM, Daane KM, Pringle KL (2004) Monitoring Planococcus ficus in South African vineyards with sex pheromone-baited traps. Crop Prot 23:1089–1096. doi: 10.1016/j.cropro.2004.03.016Waterworth RA, Redak RA, Millar JG (2011) Pheromone-baited traps for assessment of seasonal activity and population densities of mealybug species (Hemiptera: Pseudococcidae) in nurseries producing ornamental plants. J Econ Entomol 104:555–565. doi: 10.1603/ec10317Way MJ, van Emden HF (2000) Integrated pest management in practice—pathways towards successful application. Crop Prot 19:81–10
Seasonal Distribution and Movement of the Invasive Pest Delottococcus aberiae (Hemiptera: Pseudococcidae) Within Citrus Tree: Implications for Its Integrated Management
[EN] Delottococcus aberiae (De Lotto) (Hemiptera: Pseudococcidae) is the most recent species of mealybug introduced to Spain that is affecting citrus. The feeding behavior of D. aberiae causes severe direct damage to citrus fruits, distorting their shape and/or causing reduction in size. There is no information available regarding its distribution within the citrus trees. The main objective of this study was to describe the seasonal distribution of D. aberiae within citrus trees and its migration patterns on the plants. Ten citrus orchards from eastern Spain were periodically sampled during 3 yr. In each orchard, the mealybug was sampled in different infested strata (canopy, trunk, and soil) and canopy structures (flower, fruit, leaf, and twig). Results showed that, within the sampled strata, D. aberiae was mostly in the canopy. Within the canopy, the feeding location of D. aberiae changed throughout the year. D. aberiae overwintered in the twigs and moved to the flowers and fruits in spring. Once there, its populations started to increase exponentially until August. From February to September, 5-30% of the mealybugs migrated to the trunk and soil. These results will facilitate an early detection of the pest in the areas where it is spreading and improve sampling protocols and pesticide applications.We thank the owners of the orchards for allowing us to use their plantations, especially Placido Calabuig. We thank Debra Westall (UPV) for English corrections. The authors are also grateful to two anonymous reviewers for helpful comments and corrections. This research was supported by two predoctoral grants (FPU to V.M.-B. and Val I+d to J.P.-R. from the Spanish Ministry of Education, Culture and Sport and Generalitat Valenciana, respectively), a national project provided by Instituto Nacional de Investigacion y Tecnologia Agraria y Alimentaria (INIA) (project no. RTA2014-00067) and the European grants FP7-IAPP #324475 'Colbics' and FP7-IRSES #612566 'Biomodic'.Martínez-Blay, V.; Pérez-Rodríguez, J.; Tena Barreda, A.; Soto Sánchez, AI. (2018). Seasonal Distribution and Movement of the Invasive Pest Delottococcus aberiae (Hemiptera: Pseudococcidae) Within Citrus Tree: Implications for Its Integrated Management. Journal of Economic Entomology. 111(6):2684-2692. https://doi.org/10.1093/jee/toy279S26842692111
El uso de la plataforma WebCT en la formación de los estudiantes
Esta experiencia está estrechamente relacionada con la metodología que
hemos venido realizando en los últimos cursos académicos. Los estudiantes
se han organizado individualmente, parejas o en grupos para trabajar las
actividades correspondientes a cada tema a través de la plataforma Virtual
WebCT y, se ha dedicado el tiempo de créditos prácticos para su puesta en
común en el aula. La metodología se ha basado en estrategias propias de
una enseñanza activa y autónoma, centrada en la figura del alumno como
elemento clave del sistema de formación y con una participación del profesor/
tutor como dinamizador y facilitador del proceso de aprendizaje. Siendo
objetivo prioritario lograr que los alumnos utilicen las diversas herramientas
para la participación y la interacción con otros/as compañeros/as,
con la profesora y los propios materiales
Aggregation Patterns, Sampling Plan, and Economic Injury Levels for the New Citrus Pest Delottococcus aberiae (Hemiptera: Pseudococcidae)
[EN] Delottococcus aberiae De Lotto (Hemiptera: Pseudococcidae) is the latest exotic mealybug species introduced in citrus in the Mediterranean basin. It causes severe distortion and size reduction on developing fruits. Due to its first interaction with citrus, D. aberiae economic thresholds are still unknown for this crop and the current Integrated Pest Management programs have been disrupted. The objectives of this study were to determine the aggregation patterns of D. aberiae in citrus, develop an efficient sampling plan to assess its population density, and calculate its Economic and Economic Environmental Injury Levels (EIL and EEIL, respectively). Twelve and 19 orchards were sampled in 2014 and 2015, respectively. At each orchard, population densities were monitored fortnightly in leaves, twigs, and fruit, and fruit damage was determined at harvest. Our results showed a clumped aggregation of D. aberiae in all organs with no significant differences between generations on fruit. Fruit damage at harvest was strongly correlated with fruit occupation in spring. Based on these results and using chlorpyrifos as the insecticide of reference, the EIL and EEIL were calculated as 7.1 and 12.1% of occupied fruit in spring, respectively. With all this, we recommend sampling 275 fruits using a binomial sampling method or alternatively, 140 fruits with an enumerative method bimonthly between petal fall and July.We would like to thank the owners of the orchards for giving us permission to use their plantations, Aureli Marco and Jesus Marques for finding the orchards, and P. Bru (IVIA) and J. Catalan (IVIA) for their help in sampling. This research was supported by two predoctoral grant (FPU toV. M. and Val I+D to J.P.-R.) from the Spanish Ministry of Education, Culture, and Sport and Generalitat Valenciana, respectively, a national project provided by INIA (Project no. RTA2014-00067) and a European grant (FP7-IAPP324475 'Colbics')Pérez-Rodríguez, J.; Martínez-Blay, V.; Soto Sánchez, AI.; Selfa, J.; Monzó, C.; Urbaneja, A.; Tena, A. (2017). Aggregation Patterns, Sampling Plan, and Economic Injury Levels for the New Citrus Pest Delottococcus aberiae (Hemiptera: Pseudococcidae). Journal of Economic Entomology. 110(6):2699-2706. https://doi.org/10.1093/jee/tox258S269927061106Allsopp, P. G. (1991). Binomial sequential sampling of adult Saccharicoccus sacchari on sugarcane. Entomologia Experimentalis et Applicata, 60(3), 213-218. doi:10.1111/j.1570-7458.1991.tb01540.xBellard, C., Cassey, P., & Blackburn, T. M. (2016). Alien species as a driver of recent extinctions. Biology Letters, 12(2), 20150623. doi:10.1098/rsbl.2015.0623Beltrà, A., Garcia-Marí, F., & Soto, A. (2013). Seasonal Phenology, Spatial Distribution, and Sampling Plan for the Invasive Mealybug Phenacoccus peruvianus (Hemiptera: Pseudococcidae). Journal of Economic Entomology, 106(3), 1486-1494. doi:10.1603/ec13024Boavida, C., Neuenschwander, P., & Schulthess, F. (1992). Spatial distribution ofRastrococcus invadensWilliams (Hom., Pseudococcidae) in mango trees. Journal of Applied Entomology, 114(1-5), 381-391. doi:10.1111/j.1439-0418.1992.tb01141.xBrowning, T. (1959). The long-tailed mealybug, Pseudococcus adonidum (L.) in South Australia. Australian Journal of Agricultural Research, 10(3), 322. doi:10.1071/ar9590322Furness, G. (1976). The Dispersal, Age-Structure and Natural Enemies of the Long-Tailed Mealybug, Pseudococcus Longispinus (Targioni-Tozzetti), in Relation to Sampling and Control. Australian Journal of Zoology, 24(2), 237. doi:10.1071/zo9760237Gaertner, M., Den Breeyen, A., Cang Hui, & Richardson, D. M. (2009). Impacts of alien plant invasions on species richness in Mediterranean-type ecosystems: a meta-analysis. Progress in Physical Geography: Earth and Environment, 33(3), 319-338. doi:10.1177/0309133309341607GEIGER, C. A., & DAANE, K. M. (2001). Seasonal Movement and Distribution of the Grape Mealybug (Homoptera: Pseudococcidae): Developing a Sampling Program for San Joaquin Valley Vineyards. Journal of Economic Entomology, 94(1), 291-301. doi:10.1603/0022-0493-94.1.291Goolsby, J. A., Kirk, A. A., & Meyerdirk, D. E. (2002). SEASONAL PHENOLOGY AND NATURAL ENEMIES OF MACONELLICOCCUS HIRSUTUS (HEMIPTERA: PSEUDOCOCCIDAE) IN AUSTRALIA. Florida Entomologist, 85(3), 494-498. doi:10.1653/0015-4040(2002)085[0494:spaneo]2.0.co;2Groffman, P. M., Baron, J. S., Blett, T., Gold, A. J., Goodman, I., Gunderson, L. H., … Wiens, J. (2006). Ecological Thresholds: The Key to Successful Environmental Management or an Important Concept with No Practical Application? Ecosystems, 9(1), 1-13. doi:10.1007/s10021-003-0142-zHulme, P. E. (2009). Trade, transport and trouble: managing invasive species pathways in an era of globalization. Journal of Applied Ecology, 46(1), 10-18. doi:10.1111/j.1365-2664.2008.01600.xJacas, J. A., & Urbaneja, A. (2010). Biological Control in Citrus in Spain: From Classical to Conservation Biological Control. Integrated Management of Arthropod Pests and Insect Borne Diseases, 61-72. doi:10.1007/978-90-481-8606-8_3Kuno, E. (1991). Sampling and Analysis of Insect Populations. Annual Review of Entomology, 36(1), 285-304. doi:10.1146/annurev.en.36.010191.001441MacDonald, G. K., Brauman, K. A., Sun, S., Carlson, K. M., Cassidy, E. S., Gerber, J. S., & West, P. C. (2015). Rethinking Agricultural Trade Relationships in an Era of Globalization. BioScience, 65(3), 275-289. doi:10.1093/biosci/biu225MAINKA, S. A., & HOWARD, G. W. (2010). Climate change and invasive species: double jeopardy. Integrative Zoology, 5(2), 102-111. doi:10.1111/j.1749-4877.2010.00193.xMartínez-Ferrer, M. T., Ripollés, J. L., & Garcia-Marí, F. (2006). Enumerative and Binomial Sampling Plans for Citrus Mealybug (Homoptera: Pseudococcidae) in Citrus Groves. Journal of Economic Entomology, 99(3), 993-1001. doi:10.1093/jee/99.3.993Meyerson, L. A., & Mooney, H. A. (2007). Invasive alien species in an era of globalization. Frontiers in Ecology and the Environment, 5(4), 199-208. doi:10.1890/1540-9295(2007)5[199:iasiae]2.0.co;2Mgocheki, N., & Addison, P. (2009). Incorporating sampling precision into an action threshold for monitoring ant (Hymenoptera: Formicidae) population levels in vineyards. Crop Protection, 28(3), 257-263. doi:10.1016/j.cropro.2008.10.010Miller, D. R., & Giliomee, J. H. (2011). Systematic Revision of the Mealybug GenusDelottococcusCox & Ben-Dov (Hemiptera: Pseudococcidae). African Entomology, 19(3), 614-640. doi:10.4001/003.019.0306Mudavanhu, P., Addison, P., & Pringle Ken, L. (2011). Monitoring and action threshold determination for the obscure mealybug Pseudococcus viburni (Signoret) (Hemiptera: Pseudococcidae) using pheromone-baited traps. Crop Protection, 30(7), 919-924. doi:10.1016/j.cropro.2011.02.034Navarro-Campos, C., Aguilar, A., & Garcia-Marí, F. (2011). Aggregation pattern, sampling plan, and intervention threshold for Pezothrips kellyanus in citrus groves. Entomologia Experimentalis et Applicata, 142(2), 130-139. doi:10.1111/j.1570-7458.2011.01204.xNestel, D., Cohen, H., Saphir, N., Klein, M., & Mendel, Z. (1995). Spatial Distribution of Scale Insects: Comparative Study Using Taylor’s Power Law. Environmental Entomology, 24(3), 506-512. doi:10.1093/ee/24.3.506PIMENTEL, D., LACH, L., ZUNIGA, R., & MORRISON, D. (2000). Environmental and Economic Costs of Nonindigenous Species in the United States. BioScience, 50(1), 53. doi:10.1641/0006-3568(2000)050[0053:eaecon]2.3.co;2Pimentel, D., Zuniga, R., & Morrison, D. (2005). Update on the environmental and economic costs associated with alien-invasive species in the United States. Ecological Economics, 52(3), 273-288. doi:10.1016/j.ecolecon.2004.10.002Planes, L., Catalán, J., Jaques, J. A., Urbaneja, A., & Tena, A. (2015). Pezothrips kellyanus(Thysanoptera: Thripidae) Nymphs on Orange Fruit: Importance of the Second Generation for Its Management. Florida Entomologist, 98(3), 848-855. doi:10.1653/024.098.0306Roltsch, W. J., Meyerdirk, D. E., Warkentin, R., Andress, E. R., & Carrera, K. (2006). Classical biological control of the pink hibiscus mealybug, Maconellicoccus hirsutus (Green), in southern California. Biological Control, 37(2), 155-166. doi:10.1016/j.biocontrol.2006.01.006Stern, V. M., Smith, R. F., van den Bosch, R., & Hagen, K. S. (1959). The integration of chemical and biological control of the spotted alfalfa aphid: The integrated control concept. Hilgardia, 29(2), 81-101. doi:10.3733/hilg.v29n02p081Sutherland, W. J., Bardsley, S., Bennun, L., Clout, M., Côté, I. M., Depledge, M. H., … Fleishman, E. (2011). Horizon scan of global conservation issues for 2011. Trends in Ecology & Evolution, 26(1), 10-16. doi:10.1016/j.tree.2010.11.002TAYLOR, L. R. (1961). Aggregation, Variance and the Mean. Nature, 189(4766), 732-735. doi:10.1038/189732a0Tena, A., García-Bellón, J., & Urbaneja, A. (2016). Native and naturalized mealybug parasitoids fail to control the new citrus mealybug pest Delottococcus aberiae. Journal of Pest Science, 90(2), 659-667. doi:10.1007/s10340-016-0819-7Waterworth, R. A., Redak, R. A., & Millar, J. G. (2011). Pheromone-Baited Traps for Assessment of Seasonal Activity and Population Densities of Mealybug Species (Hemiptera: Pseudococcidae) in Nurseries Producing Ornamental Plants. Journal of Economic Entomology, 104(2), 555-565. doi:10.1603/ec1031
Field evaluation of Cryptolaemus montrouzieri (Mulsant) (Coleoptera: Coccinellidae) as biological control agent of the mealybug Delottococcus aberiae De Lotto (Hemiptera: Pseudococcidae)
[EN] Delottococcus aberiae De Lotto (Hemiptera: Pseudococcidae) is one of the latest invasive mealybugs in Europe. It causes severe fruit distortion and reduced fruit size leading into important economic losses in citrus. Cryptolaemus montrouzieri (Mulsant) (Coleoptera: Coccinellidae) is probably one of the most-used predators of mealybugs in biological control programs worldwide. However, its impact on D. aberiae is still unknown. Here, we conducted a two-year field study in nine citrus orchards located in eastern Spain in order to describe the population dynamics of D. aberiae and C. monirouzieri and evaluate the effect of the predator on D. aberiae using different approaches. Our results showed that C. monirouzieri and D. aberiae had two main synchronised population peaks per year: early spring and summer. Although D. aberiae and C. monirouzieri seasonal trends were synchronised, C. montrouzieri neither reduced mealybug density within the same year nor prevented fruit damage, which occurs early in the season. Moreover, D. aberiae population growth rates were not correlated with C. montrouzieri density. When two consecutive years were analyzed, the increase of D. aberiae in the second year was negatively correlated with the density of C. monirouzieri in summer of the previous year. Based on our two years of data, C. monirouzieri was not able to regulate D. aberiae on its own or prevent the damages produced by the mealybug but might become a valuable addition to the natural enemy guild when combined with other natural enemies and rational control measures.We thank the owners of the citrus orchards for giving us permission to use their plantations. This research was supported by two pre-doctoral grants (FPU to V. M. and Val I + D to J. P-R.) from the Spanish Ministry of Education, Culture, and Sport and Generalitat Valenciana, respectively, two national projects provided by INIA (Project no. RTA 2014-00067; RTA 2014-00095) and a European grant (FP7-IAPP 324475 'Colbics').Pérez-Rodríguez, J.; Miksanek, JR.; Selfa, J.; Martínez-Blay, V.; Soto Sánchez, AI.; Urbaneja, A.; Tena, A. (2019). Field evaluation of Cryptolaemus montrouzieri (Mulsant) (Coleoptera: Coccinellidae) as biological control agent of the mealybug Delottococcus aberiae De Lotto (Hemiptera: Pseudococcidae). Biological Control. 138:1-7. https://doi.org/10.1016/j.biocontrol.2019.104027S1713
Impulsando la competitividad internacional de la empresa turística en España: Una agenda de cambio institucional
In a context in which tourism destinations are increasingly seeing the internationalisation of their enterprises, as well as the setting up of foreign businesses there, it becomes a point of interest to know the circumstances under which tourism enterprises can maintain and strengthen their international competitiveness. In order to make a contribution in this area, the present work identifies –in the case of Spain– the necessary changes to the cognitive, normative and regulatory institutional pillars so as to favour the international competitiveness of tourism businesses established in the country. To this end, empirical research has been carried out in two phases, the first qualitative and the second quantitative. The work done makes it possible to identify and prioritise in terms of importance 37 changes to the institutional pillars and 139 more specific measures, which would contribute to improving the international competitiveness of the enterprises in the tourism sector. Given that the competitiveness of enterprises in a country affects their results and their survival, as well as the socio-economic prosperity of the territory, the work presented is of practical utility both for entrepreneurs and business associations, and for those responsible for formulating laws and policies that support the tourism sector in Spain, since all are necessary and responsible actors in the development of the required institutional changes.Este trabajo ha obtenido el 1.er Premio «Estudios Financieros» 2019 en la modalidad de Contabilidad y Administración de Empresas.
En un contexto en el que los destinos turísticos asisten de forma creciente tanto a la internacionalización de sus empresas como a la instalación en ellos de empresas foráneas, adquiere elevado interés conocer las circunstancias bajo las cuales la empresa turística puede mantener y reforzar su competitividad internacional. En aras de realizar una contribución en este ámbito, el presente trabajo identifica, para el caso de España, los cambios necesarios en los pilares institucionales cognitivo, normativo y regulativo al objeto de favorecer la competitividad internacional de la empresa turística establecida en el país. A tal objeto se lleva a cabo un trabajo empírico en dos fases, la primera de índole cualitativa y la segunda cuantitativa. El trabajo realizado permite identificar y priorizar 37 cambios en los pilares institucionales, y su concreción en 139 propuestas, que contribuirían a mejorar la competitividad internacional de las empresas del sector. Dado que la competitividad de las empresas de un país afecta a los resultados y supervivencia de estas, así como a la prosperidad socioeconómica del territorio, el trabajo que se presenta es de utilidad práctica tanto para empresarios y asociaciones empresariales como para los responsables de formular leyes y políticas de apoyo al sector turístico en España, pues todos son actores necesarios y con responsabilidad en el desarrollo del cambio institucional requerido
Contribución de la electrónica y fotónica a la tecnología de la rehabilitación
Alrededor de un 15% de la población está afectada en cierto grado por una
discapacidad. En la sociedad del bienestar y a las puertas de un nuevo milenio, existe una indudable
preocupación por proporcionar a estas personas con discapacidad acceso a servicios similares, y a
un mismo grado de independencia que sus conciudadanos. En este sentido, la Tecnología de la
Rehabilitación será la encargada de ofrecerles soluciones, productos y servicios que les permitan
equipararse con el resto de la sociedad y acceder de forma igualitaria a las mismas tareas,
actividades y puestos de trabajo. El soporte tecnológico sobre el que se basarán los citados
productos o servicios puede ser variado, aunque disciplinas tradicionales como la electrónica y la
fotónica seguirán jugando un papel preponderante.Publicad
Inappropriate prescribing to older patients admitted to hospital: A comparison of different tools of misprescribing and underprescribing
Purpose: This study aims to assess inappropriate prescribing (IP) to elderly patients during the month prior to hospitalization and to compare different IP criteria. Methods: An observational, prospective and multicentric study was carried out in the internal medicine services of seven Spanish hospitals. Patients aged 75 years and older were randomly selected after hospital admission for a year. To assess potentially inappropriate medicines (PIMs), the Beers and STOPP criteria were used and to assess Potentially Prescribing Omissions (PPOs), the START criteria and ACOVE-3 medicine quality indicators were used. An analysis to assess factors associated with IP was performed. Results: 672 patients [median age (Q1_Q3) 82 (79-86) years, 55.9% female] were included. Median prescribed medicines in the month prior to hospitalization were 10(Q1-Q3 7-13). The prevalence of IP was 87.6%, and 54.3% of patients had PIMs and PPOs concurrently. A higher prevalence rate of PIMs was predicted using the STOPP criteria than with the Beers criteria (p<.001) and a higher prevalence of PPOs using the ACOVE-3 criteria than using the START criteria (p<.001) was observed. Polypharmacy (≥10 medicines) was the strongest predictor of IP [OR=11.34 95% confidence interval (CI) 4.96-25.94], PIMs [OR=14.16, 95% CI 6.44-31.12], Beers-listed PIMs [OR=8.19, 95% CI 3.01-22.28] and STOPP-listed PIMs [OR=8.21, 95% CI 3.47-19.44]. PIMs was the strongest predictor of PPOs [OR=2.79, 95% CI 1.81-4.28]. Conclusions: A high prevalence of polypharmacy and PIMs and PPOs were reported. More than half the patients had simultaneous PIMs and PPOs. The related factors to PIMs and PPOs were different
Inappropriate prescribing to the oldest old patients admitted to hospital: prevalence, most frequently used medicines, and associated factors
Background: Scientific evidence on treatments of chronic diseases in patients 85 years old or older is very limited, as is available information on inappropriate prescription (IP) and its associated factors. The study aimed to describe medicine prescription, potentially inappropriate medicines (PIM) and potentially prescribing omissions (PPO) and their associated factors on this population. Methods: In the context of an observational, prospective and multicentric study carried out in elderly patients admitted to seven Spanish hospitals for a year, a sub-analysis of those aged 85 years and over was performed. To assess PIMs, the Beers and STOPP criteria were used, and to assess PPOs, the START and the ACOVE-3 criteria were used. To assess factors associated with IP, a multivariate logistic regression analysis was performed. Patients were selected randomly every week on consecutive days from the hospitalization lists. Results: A total of 336 patients were included in the sub-analysis with a median (Q1-Q3) age of 88 (8690) years. The median medicines taken during the month prior to admission was 10 (713). Forty-seven point two per cent of patients had at least one Beers-listed PIM, 63.3% at least one STOPP-listed PIM, 53.6% at least one START-listed PPO, and 59.4% at least one ACOVE-3-listed PPO. Use of benzodiazepines in patients who are prone to falls (18.3%) and omission of calcium and vitamin D supplements in patients with osteoporosis (13.3%) were the most common PIM and PPO, respectively. The main factor associated with the Beers-listed and the STOPP-listed PIM was consumption of 10 or more medicines (OR = 5.7, 95% CI 1.8-17.9 and OR = 13.4, 95% CI 4.0-44.0, respectively). The main factors associated with the START-listed PPO was a non-community dwelling origin (OR 2.3, 95% CI 1.0-5.0), and multimorbidity (OR1.8, 95% CI 1.0-3.1). Conclusions: Prescribed medicines and PIM and PPO prevalence were high among patients 85 years and over. Benzodiazepine use in those who are prone to falls and omission of calcium and vitamin D in those with osteoporosis were the most frequent PIM and PPO, respectively. Factors associated with PIM and PPO differed with polypharmacy being the most important factor associated with PIM
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