Epidemiology of cereal aphids on winter wheat in Norfolk, 1979-1981

The cereal aphid outbreaks of 1979 (Metopolophium dirhodum ) and 1980 (Sitobion avenae ) and their lower population levels in 1981, in Norfolk, are described. The high incidence of cereal aphid outbreaks in Norfolk are probably due to a combination of factors, including: the high hectarage devoted t...

Full description

Saved in:
Bibliographic Details
Published in:The Journal of applied ecology 1984-01, Vol.21 (1), p.103-114
Main Authors: Leather, S.R, Carter, N, Walters, K.F.A, Chroston, J.R, Thornback, N
Format: Article
Language:English
Subjects:
Aphididae
Biological and medical sciences
Control
Fundamental and applied biological sciences. Psychology
Generalities
Metopolophium dirhodum
Phytopathology. Animal pests. Plant and forest protection
Protozoa. Invertebrates
Records, symptoms, damages, economic importance, population surveys
Sitobion avenae
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The cereal aphid outbreaks of 1979 (Metopolophium dirhodum ) and 1980 (Sitobion avenae ) and their lower population levels in 1981, in Norfolk, are described. The high incidence of cereal aphid outbreaks in Norfolk are probably due to a combination of factors, including: the high hectarage devoted to cereals; the low numbers of aphid-specific and polyphagous predators present early in the season; and the dry conditions during the immigration period. It is suggested that monitoring for M. dirhodum could be carried out on roses in the spring, while a forecasting scheme for S. avenae can only be developed when a greater understanding of its life cycle is obtained.
ISSN:0021-8901
1365-2664
DOI:10.2307/2403040