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Nematode‐transmitted Viruses of Sugar Beet in England, 1965–1972
Author(s) -
Heathcote G. D.
Publication year - 1973
Publication title -
plant pathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.928
H-Index - 85
eISSN - 1365-3059
pISSN - 0032-0862
DOI - 10.1111/j.1365-3059.1973.tb01799.x
Subject(s) - sugar beet , biology , sugar , agronomy , tobacco rattle virus , horticulture , toxicology , virus , plant virus , veterinary medicine , virology , medicine , biochemistry
SUMMARY Tobacco rattle virus occurs in about 10 per cent, and tomato blackring virus in about 5 per cent, of fields in England affected with Docking disorder. Leaf symptoms caused by TRV, TBRV or by both viruses together may be indistinguishable in sugar beet. Sugar‐beet plants showing TRV in June were symptomless in October and were then only half the weight of symptomless neighbouring plants. Sugar beet infected through the seed with TBRV were symptomless and not stunted under glasshouse conditions. Treatment with either ‘D‐D’ soil fumigant or the systemic nematicide methomyl decreased the proportion of plants showing TRV in the field. Although widely distributed in England, neither TRV nor TBRV seems likely to cause a serious disease of sugar‐beet crops.