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Observations on the number of cereal aphids on the soil in relation to aphid density in winter wheat
Author(s) -
SOPP P. I.,
SUNDERLAND K. D.,
COOMBES D. S.
Publication year - 1987
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.1744-7348.1987.tb01432.x
Subject(s) - biology , aphid , agronomy , population density , aphididae , winter wheat , sitobion avenae , population , pest analysis , homoptera , botany , demography , sociology
SUMMARY The numbers of cereal aphids on the soil surface was assessed by soil samples and by counting the numbers captured in pitfall traps. A relationship was found by both methods between the density of aphids on the plants and the numbers of aphids on the soil. This relationship indicated that a higher proportion of the aphid population was on the soil surface at the lower densities on the plant. Reasons for this relationship are suggested and discussed.