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Biological performance of Myzus persicae and Macrosiphum euphorbiae (Homoptera: Aphididae) on seven wild Solanum species
Author(s) -
Pelletier Y.,
Pompon J.,
Dexter P.,
Quiring D.
Publication year - 2010
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.2010.00389.x
Subject(s) - macrosiphum euphorbiae , biology , myzus persicae , aphididae , solanum , aphid , homoptera , fecundity , population , botany , population dynamics , horticulture , pest analysis , demography , sociology
Resistance level of seven accessions of wild Solanum species ( Solanaceae ) to Myzus persicae and Macrosiphum euphorbiae (Homoptera: Aphididae ) was evaluated by measuring survival and fecundity during sleeve cage experiments and population growth on whole plants in a controlled environment. The survival was lowest on the Solanum circaeifolium spp. capsicibaccatum , Solanum pinnatisectum and Solanum trifidum accessions for M . persicae and on the S . circaeifolium spp. capsicibaccatum , Solanum okadae and S . trifidum , accessions with M . euphorbiae . Plant species significantly influenced the fecundity of both aphid species. Aphid population growth on whole plants was negatively affected by the age of the plant, but generally followed the levels of net reproductive rate on different plant species observed during the sleeve cage experiment. The population of M . persicae varied among the seven wild potato accessions with the lowest growth rates on S . circaeifolium spp. capsicibaccatum , Solanum polyadenium , Solanum tarijense and S . trifidum . The number of M . euphorbiae also varied among accessions but the smallest population was collected from S . polyadenium . The results can be used to identify sources of resistance to aphids within those accessions already known to be resistant to the Colorado potato beetle. This study highlights the difficulties involved in developing a high‐throughput screening test for aphid resistance compatible with a potato breeding programme.