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Chemical control of Didymascella thujina on Western red cedar in forest nurseries
Author(s) -
BURDEKIN D. A.,
PHILLIPS D. H.
Publication year - 1971
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.1744-7348.1971.tb02912.x
Subject(s) - biology , acre , fungicide , chemical control , blight , agronomy , horticulture , forestry , toxicology , agroforestry , geography
SUMMARY Didymascella thujina causes a serious needle blight in nursery stock of Western red cedar. It may be controlled by cycloheximide applied at a concentration of 85 ppm of active ingredient and at a rate of 100 gal/acre (1123 1/ha) at the end of March and again at the end of April. In south Wales and south‐west Scotland a third application may be needed in mid‐June. Other fungicides tested were not effective against this disease.