Listar por autor "Blackman, R. L."
Mostrando ítems 1-6 de 6
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Co-existence of different host-adapted forms of the Myzus persicae group (Hemiptera : Aphididae) in southern Italy
Margaritopoulos, J. T.; Blackman, R. L.; Tsitsipis, J. A.; Sannino, L. (2003)Multivariate morphometric analysis (method of canonical variates) was used to compare 38 parthenogenetic lineages and three field collections of aphids of the Myzus persicae (Sulzer) group sampled on peach and tobacco in ... -
Distribution of common genotypes of Myzus persicae (Hemiptera: Aphididae) in Greece, in relation to life cycle and host plant
Blackman, R. L.; Malarky, G.; Margaritopoulos, J. T.; Tsitsipis, J. A. (2007)Microsatellite genotyping was used to identify common clones in populations of the Myzus persicae group from various hosts and regions in mainland Greece and southern Italy and to compare their distribution and occurrence ... -
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 ... -
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 ... -
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 ...