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Kostas Zarpas
Laboratory of Entomology and Agricultural Zoology, Department of Agriculture, Crop Production and Rural Environment, University of Thessaly, Fytokou St., 384 46 Volos, Greece

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Journal article
Published: 28 June 2021 in Applied Sciences
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FruiTemp is an open-source prototype developed to study the response of endophytic insect species such as fruit flies (Diptera: Tephrtidae) to variable temperature conditions including the controlled laboratory and fluctuating field settings. The system is a three-channel temperature sensor that consists of two precision thermistors that measure the temperature in the core and the surface of a fruit on a tree and a Harsh Environment thermistor that measures the air temperature surrounding the host at a rate of one measurement per 15 min. The sample rate can be adjusted according to the researcher’s needs. The system was successfully tested in field and laboratory experimental conditions using apples as the fruit model. The measurements on apples on trees lasted five consecutive days and produced a range of reliable data. After assessing statistical agreement and precision, the results revealed a differential bias of 0.331 °C and a proportional bias of a magnitude of 0.982. This work promotes open-source implementations allowing inexpensive solutions aiding experimentation procedures by significantly lowering operating costs.

ACS Style

Evmorfia Bataka; Vasilis Rodovitis; Kostas Zarpas; Nikos Papadopoulos; Christos Nakas. FruiTemp: Design, Implementation and Analysis for an Open-Source Temperature Logger Applied to Fruit Fly Host Experimentation. Applied Sciences 2021, 11, 6003 .

AMA Style

Evmorfia Bataka, Vasilis Rodovitis, Kostas Zarpas, Nikos Papadopoulos, Christos Nakas. FruiTemp: Design, Implementation and Analysis for an Open-Source Temperature Logger Applied to Fruit Fly Host Experimentation. Applied Sciences. 2021; 11 (13):6003.

Chicago/Turabian Style

Evmorfia Bataka; Vasilis Rodovitis; Kostas Zarpas; Nikos Papadopoulos; Christos Nakas. 2021. "FruiTemp: Design, Implementation and Analysis for an Open-Source Temperature Logger Applied to Fruit Fly Host Experimentation." Applied Sciences 11, no. 13: 6003.

Journal article
Published: 20 September 2019 in Agronomy
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The European cherry fruit fly, Rhagoletis cerasi (Diptera: Tephritidae), is a key pest for the cherry production industry in Europe and west Asia that has recently invaded North America. Insecticide applications are frequently employed to control this devastating pest, often without considering its population trends. We developed a novel decision support system (DSS), and field tested it in commercial sweet cherry orchards in central Greece. The DSS includes two algorithms that predict the timing of adult activity in the wild and support pest management decisions, based on R. cerasi population trends and pesticide properties, respectively. Preparatory monitoring of the testing area during 2014, using adult traps, revealed high population densities of R. cerasi in non-managed sweet cherry orchards and low densities in commercial ones. Implementation of the DSS during 2015 resulted in low R. cerasi adult population densities and zero fruit infestation rates in commercial cherry orchards. Similar population and infestation rates were recorded in conventionally treated plots that received on average two insecticide applications compared to the one-half that the DSS treated plots received. Simultaneously, high population densities and fruit infestation rates were recorded in non-managed cherry orchards. Apparently, the implementation of the simple DSS we developed reduces the cost of R. cerasi management and minimizes the chemical footprint on both the harvested fruit and the environment.

ACS Style

Charalampos S. Ioannou; Stella A. Papanastasiou; Kostas D. Zarpas; Miguel Angel Miranda; Andrea Sciarretta; David Nestel; Nikos T. Papadopoulos. Development and Field Testing of a Spatial Decision Support System to Control Populations of the European Cherry Fruit Fly, Rhagoletis cerasi, in Commercial Orchards. Agronomy 2019, 9, 568 .

AMA Style

Charalampos S. Ioannou, Stella A. Papanastasiou, Kostas D. Zarpas, Miguel Angel Miranda, Andrea Sciarretta, David Nestel, Nikos T. Papadopoulos. Development and Field Testing of a Spatial Decision Support System to Control Populations of the European Cherry Fruit Fly, Rhagoletis cerasi, in Commercial Orchards. Agronomy. 2019; 9 (10):568.

Chicago/Turabian Style

Charalampos S. Ioannou; Stella A. Papanastasiou; Kostas D. Zarpas; Miguel Angel Miranda; Andrea Sciarretta; David Nestel; Nikos T. Papadopoulos. 2019. "Development and Field Testing of a Spatial Decision Support System to Control Populations of the European Cherry Fruit Fly, Rhagoletis cerasi, in Commercial Orchards." Agronomy 9, no. 10: 568.

Research article
Published: 16 May 2017 in PLOS ONE
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Plant essential oils (EOs) and a wide range of their individual components are involved in a variety of biological interactions with insect pests including stimulatory, deterrent, toxic and even hormetic effects. Both the beneficial and toxic properties of citrus EOs on the Mediterranean fruit fly (medfly) have been experimentally evidenced over the last years. However, no information is available regarding the toxic or beneficial effects of the major components of citrus EOs via contact with the adults of the Mediterranean fruit fly. In the present study, we explored the toxicity of limonene, linalool and α-pinene (3 of the main compounds of citrus EOs) against adult medflies and identified the effects of sub-lethal doses of limonene on fitness traits in a relaxed [full diet (yeast and sugar)] and in a stressful (sugar only) feeding environment. Our results demonstrate that all three compounds inferred high toxicity to adult medflies regardless of the diet, with males being more sensitive than females. Sub-lethal doses of limonene (LD20) enhanced the lifespan of adult medflies when they were deprived of protein. Fecundity was positively affected when females were exposed to limonene sub-lethal doses. Therefore, limonene, a major constituent of citrus EOs, induces high mortality at increased doses and positive effects on life history traits of medfly adults through contact at low sub-lethal doses. A hormetic-like effect of limonene to adult medflies and its possible underlying mechanisms are discussed.

ACS Style

Stella A. Papanastasiou; Eleftheria-Maria D. Bali; Charalampos S. Ioannou; Dimitrios Papachristos; Kostas Zarpas; Nikos T. Papadopoulos. Toxic and hormetic-like effects of three components of citrus essential oils on adult Mediterranean fruit flies (Ceratitis capitata). PLOS ONE 2017, 12, e0177837 .

AMA Style

Stella A. Papanastasiou, Eleftheria-Maria D. Bali, Charalampos S. Ioannou, Dimitrios Papachristos, Kostas Zarpas, Nikos T. Papadopoulos. Toxic and hormetic-like effects of three components of citrus essential oils on adult Mediterranean fruit flies (Ceratitis capitata). PLOS ONE. 2017; 12 (5):e0177837.

Chicago/Turabian Style

Stella A. Papanastasiou; Eleftheria-Maria D. Bali; Charalampos S. Ioannou; Dimitrios Papachristos; Kostas Zarpas; Nikos T. Papadopoulos. 2017. "Toxic and hormetic-like effects of three components of citrus essential oils on adult Mediterranean fruit flies (Ceratitis capitata)." PLOS ONE 12, no. 5: e0177837.

Article
Published: 12 February 2015 in Phytoparasitica
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The demographic parameters and the larval aphid consumption of the predatory coccinellids Hippodamia variegata (Goeze) and Ceratomegilla undecimnotata (Schneider) were examined at five constant temperatures (17, 20, 23, 26, and 29 °C). The same parameters were determined for Coccinella septempunctata L. at 23 °C. A red Myzus persicae nicotiannae Blackman clone reared on tobacco leaves was used as prey. Preimaginal development of H. variegata and C. undecimnotata ranged from 12.4 to 40.6 days and 14.4 to 48.5 days at 17 °C to 29 °C, respectively. The corresponding thermal summation constants were 211 and 256 DD (day-degrees). Total and mean daily larval consumption at 26 °C were 84.2 and 8.7 aphids, for H. variegata and 129.1 and 9.4 aphids, for C. undecimnotata, respectively. At 23 °C, the mean fecundity of H. variegata, C. undecimnotata and C. septempunctata was 882, 656 and 586 eggs, respectively. The duration of the oviposition periods was 47.6, 50.4 and 73.4 days, respectively. The demographic parameters calculated for H. variegata, C. undecimnotata and C. septempunctata, were as follows: intrinsic rate of increase (r m) 0.129, 0.084, and 0.061 female/female/day; mean generation time (T) 42.4, 59.1, and 69.3 days; net reproductive rate (Ro) 241.9, 142.7, 67.3 female/female; and population duplication time (DT) 5.4, 8.3, and 11. 4 days. Total aphid consumption by a pair of adult male and female was 2381 aphids in H. variegata and 3242 aphids in C. undecimnotata. The possible role of the three predator species as biocontrol agents is discussed.

ACS Style

P. J. Skouras; John Margaritopoulos; K. D. Zarpas; J.A. Tsitsipis. Development, growth, feeding and reproduction of Ceratomegilla undecimnotata, Hippodamia variegata and Coccinella septempunctata fed on the tobacco aphid, Myzus persicae nicotianae. Phytoparasitica 2015, 43, 159 -169.

AMA Style

P. J. Skouras, John Margaritopoulos, K. D. Zarpas, J.A. Tsitsipis. Development, growth, feeding and reproduction of Ceratomegilla undecimnotata, Hippodamia variegata and Coccinella septempunctata fed on the tobacco aphid, Myzus persicae nicotianae. Phytoparasitica. 2015; 43 (2):159-169.

Chicago/Turabian Style

P. J. Skouras; John Margaritopoulos; K. D. Zarpas; J.A. Tsitsipis. 2015. "Development, growth, feeding and reproduction of Ceratomegilla undecimnotata, Hippodamia variegata and Coccinella septempunctata fed on the tobacco aphid, Myzus persicae nicotianae." Phytoparasitica 43, no. 2: 159-169.

Journal article
Published: 01 August 2007 in Pest Management Science
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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 from various regions of Greece in the period from 2004 to 2006. In addition, 497, 349 and 370 clones originating from peach and tobacco were screened for the three known resistance mechanisms, elevated esterases, modified acetylcholinesterase (MACE) and knockdown resistance (kdr) respectively, using biochemical and DNA diagnostics. Most of the samples assayed with imidacloprid showed low resistance factors (P.Fs)-39% below 5 and 21% between 5 and 10. However, 9% of the samples (all from tobacco) showed relatively high RF values (24-73). Differences were found between crops, with higher RF values recorded in samples from tobacco than in those from peach. Bioassays with deltamethrin revealed the development of strong resistance in the populations examined. The RFs were mostly higher than 23, and in 29% of the samples they were extremely high (152-436). Finally, the three known resistance mechanisms were found in high frequencies in the populations examined, although some differences between crops and years were detected. The implications of the study for management schemes against M. persicae are discussed. (c) 2007 Society of Chemical Industry

ACS Style

John T Margaritopoulos; Panagiotis J Skouras; Parthena Nikolaidou; Joanna Manolikaki; Katherine Maritsa; Kiveli Tsamandani; Olympia M Kanavaki; Nikolaos Bacandritsos; Kostas D Zarpas; John A Tsitsipis. Insecticide resistance status ofMyzus persicae (Hemiptera: Aphididae) populations from peach and tobacco in mainland Greece. Pest Management Science 2007, 63, 821 -829.

AMA Style

John T Margaritopoulos, Panagiotis J Skouras, Parthena Nikolaidou, Joanna Manolikaki, Katherine Maritsa, Kiveli Tsamandani, Olympia M Kanavaki, Nikolaos Bacandritsos, Kostas D Zarpas, John A Tsitsipis. Insecticide resistance status ofMyzus persicae (Hemiptera: Aphididae) populations from peach and tobacco in mainland Greece. Pest Management Science. 2007; 63 (8):821-829.

Chicago/Turabian Style

John T Margaritopoulos; Panagiotis J Skouras; Parthena Nikolaidou; Joanna Manolikaki; Katherine Maritsa; Kiveli Tsamandani; Olympia M Kanavaki; Nikolaos Bacandritsos; Kostas D Zarpas; John A Tsitsipis. 2007. "Insecticide resistance status ofMyzus persicae (Hemiptera: Aphididae) populations from peach and tobacco in mainland Greece." Pest Management Science 63, no. 8: 821-829.

Original articles
Published: 01 July 2006 in International Journal of Pest Management
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The performance of three clonal lineages of Aphis gossypii Glover originating from central Greece was studied on six commercial cotton cultivars that differ with respect to leaf pubescence traits (Zeta-2, Zeta-5, Eva, Korina, Acala-SJ2 and Sindos-80). Two main laboratory experiments were conducted: (i) one clonal lineage was studied on all six varieties; and (ii) four varieties were assayed with two other lineages. Aphid development, fecundity, longevity and mortality were recorded and life-table characteristics estimated for all varieties. The results showed that leaf trichome density was significantly correlated with aphid performance (i.e. positive correlation with intrinsic rate of increase and fecundity, and negative correlation with developmental time) in both experiments. Leaf hairiness was at least partly responsible for the poorer performance in cotton aphid lineages. We hypothesise that other factors such as allelochemicals (e.g., gossypol, tannins), which are known to affect hemipteran insects, also might be involved.

ACS Style

Kostas Zarpas; John T. Margaritopoulos; Litsa Stathi; John A. Tsitsipis. Performance of cotton aphidAphis gossypii(Hemiptera: Aphididae) lineages on cotton varieties. International Journal of Pest Management 2006, 52, 225 -232.

AMA Style

Kostas Zarpas, John T. Margaritopoulos, Litsa Stathi, John A. Tsitsipis. Performance of cotton aphidAphis gossypii(Hemiptera: Aphididae) lineages on cotton varieties. International Journal of Pest Management. 2006; 52 (3):225-232.

Chicago/Turabian Style

Kostas Zarpas; John T. Margaritopoulos; Litsa Stathi; John A. Tsitsipis. 2006. "Performance of cotton aphidAphis gossypii(Hemiptera: Aphididae) lineages on cotton varieties." International Journal of Pest Management 52, no. 3: 225-232.

Journal article
Published: 06 April 2006 in European Journal of Entomology
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ACS Style

Despoina Poupoulidou; John T. Margaritopoulos; Thiresia E. Kephalogianni; Kostas Zarpas; John A. Tsitsipis. Effect of temperature and photoperiod on the life cycle in lineages of Myzus persicae nicotianae and Myzus persicae s. str. (Hemiptera: Aphididae). European Journal of Entomology 2006, 103, 337 -346.

AMA Style

Despoina Poupoulidou, John T. Margaritopoulos, Thiresia E. Kephalogianni, Kostas Zarpas, John A. Tsitsipis. Effect of temperature and photoperiod on the life cycle in lineages of Myzus persicae nicotianae and Myzus persicae s. str. (Hemiptera: Aphididae). European Journal of Entomology. 2006; 103 (2):337-346.

Chicago/Turabian Style

Despoina Poupoulidou; John T. Margaritopoulos; Thiresia E. Kephalogianni; Kostas Zarpas; John A. Tsitsipis. 2006. "Effect of temperature and photoperiod on the life cycle in lineages of Myzus persicae nicotianae and Myzus persicae s. str. (Hemiptera: Aphididae)." European Journal of Entomology 103, no. 2: 337-346.

Comparative study
Published: 01 April 2006 in Bulletin of Entomological Research
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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 host-plant associations. Morphometric variation of A. gossypii samples from crops and non-cultivated plants in many parts of the world was examined, to determine whether this variation is correlated with the hosts from which the aphids originated. Samples of A. gossypii were collected from Cucurbitaceae and Malvaceae in Europe, and from Compositae in various parts of the world. Morphometric data for 13 parameters measured from 97 clonal lineages (728 specimens) and 27 field-collected samples (313 specimens) were analysed by a series of canonical variates analyses, using the field sample/clonal lineage as grouping factor. Clonal lineages were reared on a common host in controlled conditions to standardize the effect of host and environment on morphology. The analyses provided a clear morphometric separation of the aphids originating from Compositae and those collected on Cucurbitaceae and Malvaceae, regardless of the geographical origin of the aphids and the host plant on which they were reared. This indicates that within A. gossypii there are two widely distributed host races or subspecies with different plant family associations. The taxonomic implications are discussed.

ACS Style

J.T. Margaritopoulos; M. Tzortzi; K.D. Zarpas; J.A. Tsitsipis; R.L. Blackman. Morphological discrimination of Aphis gossypii (Hemiptera: Aphididae) populations feeding on Compositae. Bulletin of Entomological Research 2006, 96, 153 -165.

AMA Style

J.T. Margaritopoulos, M. Tzortzi, K.D. Zarpas, J.A. Tsitsipis, R.L. Blackman. Morphological discrimination of Aphis gossypii (Hemiptera: Aphididae) populations feeding on Compositae. Bulletin of Entomological Research. 2006; 96 (2):153-165.

Chicago/Turabian Style

J.T. Margaritopoulos; M. Tzortzi; K.D. Zarpas; J.A. Tsitsipis; R.L. Blackman. 2006. "Morphological discrimination of Aphis gossypii (Hemiptera: Aphididae) populations feeding on Compositae." Bulletin of Entomological Research 96, no. 2: 153-165.

Journal article
Published: 01 December 2005 in EPPO Bulletin
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The grapevine aphid Aphis illinoisensis was recently recorded in several areas on grapevine in the island of Kriti in Greece. It was found in Greece less than three years after the first record of the aphid outside the American continent in south Turkey, and it is likely that it will spread to other Mediterranean countries. © 2005 OEPP/EPPO

ACS Style

J. A. Tsitsipis; E. Angelakis; J. T. Margaritopoulos; K. Tsamandani; K. D. Zarpas. First record of the grapevine aphid Aphis illinoisensis in the island of Kriti, Greece. EPPO Bulletin 2005, 35, 541 -542.

AMA Style

J. A. Tsitsipis, E. Angelakis, J. T. Margaritopoulos, K. Tsamandani, K. D. Zarpas. First record of the grapevine aphid Aphis illinoisensis in the island of Kriti, Greece. EPPO Bulletin. 2005; 35 (3):541-542.

Chicago/Turabian Style

J. A. Tsitsipis; E. Angelakis; J. T. Margaritopoulos; K. Tsamandani; K. D. Zarpas. 2005. "First record of the grapevine aphid Aphis illinoisensis in the island of Kriti, Greece." EPPO Bulletin 35, no. 3: 541-542.

Journal article
Published: 01 August 2005 in BioControl
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Preimaginal development, mortality, aphid consumption rate, and size and weight upon reaching the adult stage of the aphidophagous coccinellids Hippodamia convergens Guérin-Méneville and Coccinella septempunctata L. collected from Karditsa, central Greece, were examined at four constant temperatures (14, 17, 20 and 23 °C) and L16:D8. The coccinellids fed on the tobacco aphid, Myzus persicae nicotianae Blackman. Egg, larval and pupal mortality was highest at 14 °C reaching 85.0, 73.8 and 29.4% in H. convergens and 49.3, 75.4 and 58.8% in C. septempunctata, respectively. Total preimaginal development ranged from 57.2 to 70.4 days at 14 °C, and to 16.9 and 22.1 days at 23 °C in H. convergens and C. septempunctata, respectively. Heavier and larger adults of H. convergens were obtained at 17 and 20 ° C. In C. septempunctata temperature did not affect adult weight while the lowest size was observed at 14 and 17 °C. Day-degrees requirements for preimaginal development in H. corvengens were 212.9 above a developmental threshold of 11.0 °C. The corresponding values for C. septempunctata were 281.5 and 10.7 °C. In H. convergens total and daily aphid consumption ranged from 46.8 aphids at 14 °C to 85.0 aphids at 23 °C and from 1.5 aphids at 14 °C to 9.2 aphids at 23 °C, respectively. The corresponding values for C. septempunctata were 112.0 and 2.7 at 14 °C and 157.7 and 12.4 at 23 °C. The results show the high potential of both predators as biological control agents against the tobacco aphid. The knowledge obtained could be essential for their appropriate use and for the improvement of mass rearing systems.

ACS Style

Ioanna Katsarou; John T. Margaritopoulos; John A. Tsitsipis; Dionyssios Ch. Perdikis; Kostas Zarpas. Effect of temperature on development, growth and feeding of Coccinella septempunctata and Hippodamia convergens reared on the tobacco aphid, Myzus persicae nicotianae. BioControl 2005, 50, 565 -588.

AMA Style

Ioanna Katsarou, John T. Margaritopoulos, John A. Tsitsipis, Dionyssios Ch. Perdikis, Kostas Zarpas. Effect of temperature on development, growth and feeding of Coccinella septempunctata and Hippodamia convergens reared on the tobacco aphid, Myzus persicae nicotianae. BioControl. 2005; 50 (4):565-588.

Chicago/Turabian Style

Ioanna Katsarou; John T. Margaritopoulos; John A. Tsitsipis; Dionyssios Ch. Perdikis; Kostas Zarpas. 2005. "Effect of temperature on development, growth and feeding of Coccinella septempunctata and Hippodamia convergens reared on the tobacco aphid, Myzus persicae nicotianae." BioControl 50, no. 4: 565-588.

Journal article
Published: 01 November 2003 in Agricultural and Forest Entomology
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1 The life parameters of one red and one green clone of Myzus persicae reared on 11 Oriental tobacco type varieties (KP7, K63, KZ10/z, MA13/b, BX2/a, N34/4, KP14/a, Kolindros, S79, TA21 and BX81) and on five Virginia ones (VE9, VE3, SPG28-VE2, Kleio-KN1 and Niki-NK3) at 20degreesC and LD 16: 8 h were examined. 2 In general, the clones, performed better on Oriental than on Virginia type varieties. The varieties TA21 and Kolindros could be considered as the most resistant among the Oriental ones. Aphids on Virginia varieties showed longer developmental time (9.1-9.6days), a lower intrinsic rate of increase (0.2347-0.2647) and higher nymphal mortality (27.9-52.5%) than on Oriental varieties. The corresponding values in the latter were 7.3-9.0 days, 0.2784-0.3302 and 10.0-47.9%. 3 The leaves of Virginia type varieties (188-471 hairs/cm(2)) and one Oriental (K63) 273 hairs/cm(2) were more hairy than the other Oriental type varieties (61-150 hairs/cm(2)). The Virginia type varieties showed also a lower level of reducing sugars (3.5-7.2%) than the Oriental ones (7.0-9.8%). Trichome density and level of reducing sugars were significantly negatively correlated with developmental time and intrinsic rate of increase. 4 An interclonal variation in performance, possibly related to the colour of aphids, was observed. The red clone performed better than the green one. The same trend was observed when the results of the previous clones on the variety KP14/a were analysed with the data obtained on the same variety from two other clones (one red and one green)

ACS Style

Stavroula Goundoudaki; John A. Tsitsipis; John T. Margaritopoulos; Konstandinos D. Zarpas; Savas Divanidis. Performance of the tobacco aphid Myzus persicae (Hemiptera: Aphididae) on Oriental and Virginia tobacco varieties. Agricultural and Forest Entomology 2003, 5, 285 -291.

AMA Style

Stavroula Goundoudaki, John A. Tsitsipis, John T. Margaritopoulos, Konstandinos D. Zarpas, Savas Divanidis. Performance of the tobacco aphid Myzus persicae (Hemiptera: Aphididae) on Oriental and Virginia tobacco varieties. Agricultural and Forest Entomology. 2003; 5 (4):285-291.

Chicago/Turabian Style

Stavroula Goundoudaki; John A. Tsitsipis; John T. Margaritopoulos; Konstandinos D. Zarpas; Savas Divanidis. 2003. "Performance of the tobacco aphid Myzus persicae (Hemiptera: Aphididae) on Oriental and Virginia tobacco varieties." Agricultural and Forest Entomology 5, no. 4: 285-291.