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Contribution to knowledge of the biocoenosis of Myzus varians Dav

, : Contribution to knowledge of the biocoenosis of Myzus varians Dav. Bollettino di Zoologia Agraria e di Bachicoltura1985; 18: 95-113

Myzus varians has become an increasingly severe pest of fruit trees in Italy, especially in peach orchards where it has sometimes replaced M. persicae; its secondary food-plants are Clematis spp.

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Related references

Arzone A.; Alma A., 1985: Contribution to the knowledge of biocenoses of myzus varians dav. Myzus varians Dav. showed abundant populations in ecosystems and agro-ecosystems in which both the primary host, Prunus persica (L.), and the secondary one, Clematis spp., are present. In such environments it appeared inserted in a very rich bioco...

Bizzaro, D.; Barbolini, E.; Mandrioli, M.; Mazzoni, E.; Manicardi, G.C., 1999: Cytogenetic characterization of the holocentric chromosomes in the aphids Myzus varians and Myzus cerasi. Cytogenetic investigations on the holocentric chromosomes of Myzus varians and Myzus cerasi have been carried out using silver staining and C-banding followed by chromomycin A3 (CMA3) and DAPI staining in order to improve the knowledge of these pe...

Massonie G.; Maison P.; Monet R.; Grasselly C., 1979: 1st observations on the resistance to myzus varians of 2 cultivars of prunus persica also resistant to myzus persicae. Assays in artificial contamination demonstrated resistance to M. varians in cultivars of P. persica, Rubira and 2678. Resistance to M. persicae was known. This resistance is related to a necrotic reaction of the leaves when they are punctured by t...

Meier, W., 1954: Ueber Myzus varians Davidson und einige weitere Myzus-Arten aus der Schweiz (Hemipt. Aphid.). Mitteilungen der Schweizerischen Entomologischen Gesellschaft, 27: 321-409

Massonie, G.; Maison, P.; Monet, R.; Grassely, C., 1979: Demonstration of characters of resistance to Myzus varians Davids. in two varieties of Prunus persica (L) Batsch also resistant to Myzus persicae Sulzer. Although Myzus persicae (Sulz.) is the main aphid pest of peach in France, considerable damage is also caused by M. varians Davidson and Hyalopterus pruni (Geoffr.), both of which are at least suspected of transmitting sharka disease. In the Borde...

Massonie, G.M.ison, P., 1979: Preliminary results on the study of the resistance of Prunus persica L. (Batsch) varieties to Myzus persicae Sulz. and Myzus varians Davids. Annales de zoologie ecologie animale1(3): 479-485

Massonie, G.M.ison,, R.G.asselly, C., 1979: Proof of resistance traits to Myzus varians Davids in two varieties of Prunus persica (L) Batsch (peaches), as well as being resistant to Myzus persicae Sulzer. Revue de zoologie agricole et de pathologie vegetalet Quarter 78(1): 1-5

Albajes, R.; Bordas, E.; Vives, J.M., 1979: Contribution to knowledge of the biocoenosis of Epichoristodes acerbella Walk. in El Maresme. Epichoristodes acerbella (Wlk.) is a major pest of carnation crops in El Marasme, Barcelona, Spain. It is a polyphagous pest and has also been observed feeding on Sonchus sp., Erigeron sp., and Chili strawberry [Fragaria chiloensis] in Spain. Ther...

Massonie G.; Maison P., 1979: Resistance of 2 varieties of prunus persica to myzus persicae and to myzus varians preliminary study of the mechanisms of resistance. The resistance of 2 varieties of P. persica to M. persicae and M. varians was investigated. Neither resistance nor susceptibility was translocated across a graft union. Resistance was retained by excised shoots. Resistance appears quickly and is a...

Massonie, G.; Maison, P., 1979: Resistance in two varieties of Prunus persica L. Batsch to Myzus persicae Sulz. and to Myzus varians Davids.: preliminary study of the mechanisms of resistance. It was noted in France that 2 varieties of peach (Rubira and S 2678) possess a level of resistance to Myzus persicae (Sulz.) and M. varians Davidson such that all attempts to infest them artificially with apterous fundatrices were unsuccessful. Th...