Zobrazeno 1 - 3
of 3
pro vyhledávání: '"D. S. Coombes"'
Autor:
C. R. A. Catlow, C. M. Barker, R. G. Bell, S. T. Bromley, D. S. Coombes, F. Cora, S. French, B. Slater, A. A. Sokol, L. Whitmore, et al. et al.
Publikováno v:
ChemInform. 32
Autor:
D. S. Coombes, N. W. Sotherton
Publikováno v:
Annals of Applied Biology. 108:461-474
SUMMARY Observations were made on the phenology of the dispersal of polyphagous arthropod predators from their overwintering habitats in field boundaries into adjacent farmland in cereal fields in southern England from 1981 to 1984. Agonum dorsale, B
Observations on the number of cereal aphids on the soil in relation to aphid density in winter wheat
Publikováno v:
Annals of Applied Biology. 111:53-57
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 aphid