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Fumigation with D‐D or Telone on soils prone to Docking disorder
Author(s) -
COOKE D. A.,
WINFIELD A. L.,
ATKINSON KAY M.,
JOHN MARGARET E.,
WILSON W. R.
Publication year - 1976
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.1744-7348.1976.tb01678.x
Subject(s) - fumigation , sugar beet , biology , sowing , agronomy , nematode , horticulture , ecology
SUMMARY Field trials in 1970‐2 tested the effect on nematode numbers of pre‐sowing fumigation with c. 641 D‐D/ha or c. 43 1 Telone/ha injected behind coulters at the same spacing as the rows of beet (‘band treatment’), the same amounts of fumigant injected both beneath and between the rows, i.e. at half‐row spacing (‘overall‐low’, totalling c. 1281/ha or 851/ha respectively) and a double dose of these fumigants at half‐row spacing (‘overall‐high’, totalling c. 256 1/ha or 170 1/ha respectively). Numbers of Trichodorus and Longidorus in the sugar‐beet rows were decreased by 68 and 86% respectively by band treatment; by 83 and 94% by overall‐low and 92 and 97% by overall‐high treatments. Populations of Longidorus recovered slowly, especially following overall treatment; populations of Trichodorus recovered more quickly, but 16 months after overall treatment they were still fewer than in the unfumigated plots. There was no correlation between nematode numbers recorded before sowing sugar beet and either the response of the crop to fumigation or the final yield of sugar beet.