Πλοήγηση ανά Συγγραφέα "Margaritopoulos, J. T."
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The grapevine aphid, Aphis illinoisensis: thermal requirements for development and its performance on six grapevine cultivars
Moraiti, C. A.; Margaritopoulos, J. T.; Zarpas, K. D.; Tsitsipis, J. A. (2012)The grapevine aphid, Aphis illinoisensis (Shimer), has invaded various regions in the Mediterranean basin. The aim of this study was to determine the thermal requirements for aphid development and to assess its performance ... -
Host selection by winged colonisers within the Myzus persicae group: A contribution towards understanding host specialisation
Margaritopoulos, J. T.; Tsourapas, C.; Tzortzi, M.; Kanavaki, O. M.; Tsitsipis, J. A. (2005)1. Myzus persicae sensu lato demonstrates considerable genetic variation in respect to adaptation to host plants. The subspecies M. persicae nicotianae shows a preference for tobacco, while M. persicae sensu stricto (s. ... -
Host-correlated morphological variation of Myzus persicae (Hemiptera : Aphididae) populations in Greece
Margaritopoulos, J. T.; Tsitsipis, J. A.; Zintzaras, E.; Blackman, R. L. (2000)Morphological variation in nine characters of 157 clones of Myzus persicae (Sulzer) was examined by multivariate analysis. The clones were collected from peach, Prunus persica, the primary host and the secondary hosts ... -
Host-related morphological variation within Myzus persicae group (Homoptera : Aphididae) from Japan
Margaritopoulos, J. T.; Shigehara, T.; Takada, H.; Blackman, R. L. (2007)There have been independent long-term studies of tobacco-adapted populations of Myzus persicae in Japan and Greece, but until now no direct comparisons have been made between them. In Japan, as in Greece, tobacco aphids ... -
Identification of a point mutation in the ace1 gene of Therioaphis trifolli maculata and detection of insecticide resistance by a diagnostic PCR–RFLP assay
AlSuhaibani, E.; Voudouris, C. C.; Al-Atiyat, R.; Kotzamumin, A.; Vontas, J.; Margaritopoulos, J. T. (2015)Aphids are important agricultural pests worldwide. Their control is largely based on chemical insecticides. One species that shows important invasive abilities and host-plant-related differences is Therioaphis trifolii ... -
Insecticide resistance in Tephritid flies
Vontas, J.; Hernandez-Crespo, P.; Margaritopoulos, J. T.; Ortego, F.; Feng, H. T.; Mathiopoulos, K. D.; Hsu, J. C. (2011)Tephritid flies attack a large variety of fruits, which constitute highly-priced commodities in many countries. Insecticides have been used extensively for their control. Although resistance development in fruit flies has ... -
Insecticide resistance status of Myzus persicae (Hemiptera : Aphididae) populations from peach and tobacco in mainland Greece
Margaritopoulos, J. T.; Skouras, P. J.; Nikolaidou, P.; Manolikaki, J.; Maritsa, K.; Tsamandani, K.; Kanavaki, O. M.; Bacandritsos, N.; Zarpas, K. D.; Tsitsipis, J. A. (2007)The susceptibility of 88 and 38 field samples of Myzus persicae (Sulzer) to imidacloprid and deltamethrin respectively was examined using the FAO dip test bioassay. The field samples were collected from tobacco and peach ... -
Insecticide resistance status of Myzus persicae in Greece: long-term surveys and new diagnostics for resistance mechanisms
Voudouris, C. C.; Kati, A. N.; Sadikoglou, E.; Williamson, M.; Skouras, P. J.; Dimotsiou, O.; Georgiou, S.; Fenton, B.; Skavdis, G.; Margaritopoulos, J. T. (2015)BACKGROUND: Myzus persicae nicotianae is an important pest in Greece, controlled mainly by neonicotinoids. Monitoring of the aphid populations for resistance mechanisms is essential for effective control. RESULTS: Two new ... -
Insecticide resistance status of the codling moth Cydia pomonella (Lepidoptera: Tortricidae) from Greece
Voudouris, C. C.; Sauphanor, B.; Franck, P.; Reyes, M.; Mamuris, Z.; Tsitsipis, J. A.; Vontas, J.; Margaritopoulos, J. T. (2011)The codling moth Cydia pomonella L is controlled mostly with chemical insecticides in Greece and control failures have been reported. However, there are no insecticide resistance studies in the country as yet. We examined ... -
An interval timer controls the production of sexual morphs in Myzus persicae (Homoptera : Aphididae)
Margaritopoulos, J. T.; Tsitsipis, J. A.; Prophetou-Athanasiadou, D. A. (2002)The interval timer mechanism was examined in two clones of Myzus persicae (Sulzer) originating from peach in Naousa, North Greece. Overwintering eggs were collected in April 1997 and after egg hatch the morphs of progeny ... -
The invasion route for an insect pest species: the tobacco aphid in the New World
Zepeda-Paulo, F. A.; Simon, J. C.; Ramirez, C. C.; Fuentes-Contreras, E.; Margaritopoulos, J. T.; Wilson, A. C. C.; Sorenson, C. E.; Briones, L. M.; Azevedo, R.; Ohashi, D. V.; Lacroix, C.; Glais, L.; Figueroa, C. C. (2010)Biological invasions are rapid evolutionary events in which populations are usually subject to a founder event during introduction followed by rapid adaptation to the new environment. Molecular tools and Bayesian approaches ... -
Life cycle variation of Myzus persicae (Hemiptera : Aphididae) in Greece
Margaritopoulos, J. T.; Tsitsipis, J. A.; Goudoudaki, S.; Blackman, R. L. (2002)During the years 1995-1999 the life cycle category of 2797 clones of Myzus persicae (Sulzer) was examined. The clones originated from primary and secondary hosts from different localities of North and Central Greece and ... -
Life histories of generalist predatory species, control agents of the Cotton aphid Aphis gossypii (Hemiptera: Aphididae)
Zarpas, K. D.; Margaritopoulos, J. T.; Tsitsipis, J. A. (2007)Biological traits of two populations of each of the predators Coccinella septempunctata Linnaeus 1758, Hippodamia convergens Guérin- Méneville 1842 (Coleoptera: Coccinellidae) and Chrysoperla carnea sl (Neuroptera: ... -
Micro-evolutionary change in relation to insecticide resistance in the peach-potato aphid, Myzus persicae
Fenton, B.; Margaritopoulos, J. T.; Malloch, G. L.; Foster, S. P. (2010)2. Asexual organisms rely on mutation whereas sexual organisms combine mutation with recombination. 3. Few organisms provide examples of species that are both sexual and asexual, but aphids do. 4. To examine evolution on ... -
A modified method for the detection of differentially expressed mRNAs without using radioactivity
Margaritopoulos, J. T.; Kouretas, D.; Tsitsipis, J. A. (2001)We present here a modification of the original differential display approach using a single oligo(dT) primer for the reverse transcription reaction (instead of the various oligo(dT)NM primers that subdivide the pool of ... -
Molecular Analysis of the Coat Protein of Potato virus Y Isolates in Greece Suggests Multiple Introduction from Different Genetic Pools
Margaritopoulos, J. T.; Dovas, C. I.; Gounaris, J.; Skouras, P. J.; Kanavaki, O. M.; Katis, N. I.; Tsitsipis, J. A. (2010)The phylogenetic relationships among Potato virus Y (PVY) isolates from northern and southern Greece were investigated. A large part of coat protein gene of 49 tobacco isolates and three from pepper was examined. The ... -
Morphological discrimination of Aphis gossypii (Hemiptera : Aphididae) populations feeding on Compositae
Margaritopoulos, J. T.; Tzortzi, M.; Zarpas, K. D.; Tsitsipis, J. A.; Blackman, R. L. (2006)Aphis gossypii Glover is a polyphagous aphid pest with a worldwide distribution. However, there is evidence that on a global scale the name A. gossypii is being applied to a number of forms with different life cycles and/or ... -
Morphological separation of host adapted taxa within the Hyalopterus pruni complex (Hemiptera: Aphididae)
Poulios, K. D.; Margaritopoulos, J. T.; Tsitsipis, J. A. (2007)Morphometric variation of individuals in field collected samples of the Hyalopterus pruni complex from various Prunus species and regions of Greece was examined, to determine whether this variation is correlated with the ... -
Organic farming-compatible insecticides against the aphid Myzus persicae (Sulzer) in peach orchards
Karagounis, C.; Kourdoumbalos, A. K.; Margaritopoulos, J. T.; Nanos, G. D.; Tsitsipis, J. A. (2006)Three products allowed in organic farming (kaolin, mineral oil and insecticidal soap) as alternatives to chemical insecticides, were evaluated for the control of Myzus persicae (Sulzer) in a peach orchard. Their efficacy ... -
Organophosphate resistance in olive fruit fly, Bactrocera oleae, populations in Greece and Cyprus
Skouras, P. J.; Margaritopoulos, J. T.; Seraphides, N. A.; Ioannides, I. M.; Kakani, E. G.; Mathiopoulos, K. D.; Atsitsipis, J. (2007)The olive fruit fly Bactrocera oleae (Gmelin) (Diptera: Tephritidae) is the most important pest of olives in countries around the Mediterranean basin. Its control has been based mostly on bait sprays with organophosphate ...