THE EFFECT OF BARLEY YELLOW DWARF VIRUS ON FIELD POPULATIONS OF THE CEREAL APHIDS, SITOBION-AVENAE AND METOPOLOPHIUM-DIRHODUM
THE EFFECT OF BARLEY YELLOW DWARF VIRUS ON FIELD POPULATIONS OF THE CEREAL APHIDS, SITOBION-AVENAE AND METOPOLOPHIUM-DIRHODUM
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DOI:
10.1111/j.1744-7348.1983.tb02734.x
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发表时间:
1983-01-01
影响因子:
2.6
通讯作者:
DEWAR, AM
中科院分区:
文献类型:
--
作者:
AJAYI, O;DEWAR, AM
The numbers of cereal aphids, especially M. dirhodum in 1979, and S. avenae in 1980, were significantly increased on BYDV infected wheat and oats in 1979, and wheat, barley and oats in 1980. The differences were probably caused by attraction of alates of each species to virus infected plants which had changed color as a result of their infection. Significantly more alates of M. dirhodum were found on virus infected oats in 1979, and of S. avenae on oats and barley in 1980, although not on wheat in either year, probably because the color contrast in wheat was less intense than in the other crops. Flight chamber experiments with alates of both species confirmed their visual attraction to virus-infected leaves. The interaction between virus, vector and host plants is discussed with reference to the ecology of virus spread.