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Effects of Three Soil Fumigants on Carabidae
Author(s) -
Critchley B. R.
Publication year - 1972
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.1365-3059.1972.tb01757.x
Subject(s) - ethylene dibromide , chloropicrin , loam , biology , fumigation , ethylene , soil water , toxicology , horticulture , agronomy , ecology , biochemistry , catalysis
SUMMARY The effects on Carabidae of using ethylene dibromide, chloropicrin or dazomet to control Heterodera rostochiensis Wollenweber in a sandy loam soil in field plots near Ascot, Berkshire, were assessed after treatments in 1965 and 1966. Immediate and longer term effects of the soil fumigants were estimated by pitfall trapping beetles that were active on the surface of the plots. All the compounds tested were initially toxic or repellent, as indicated by a fall in numbers trapped, with dazomet appearing to have the greatest effect soon after application. When assessed 6–8 months after treatment, ethylene dibromide appeared to have the greatest effect; this difference with time could be attributed to the larger molecular weight of ethylene dibromide allowing it to persist longer.