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Application of Dichlofluanid by Thermal Fogging for the Control of Grey Mould of Tomato
Author(s) -
MORGAN W. M.,
SPENCER D. M.
Publication year - 1978
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.1365-3059.1978.tb01064.x
Subject(s) - fogging , fungicide , botrytis cinerea , biology , horticulture , disease control , canopy , botany , materials science , microbiology and biotechnology , composite material
SUMMARY The effectiveness of dichlofluanid, applied at three frequencies with thermal fogging equipment, was compared with that of a standard high‐volume spray (HV) of the same fungicide for the control of natural and artificial infections of Botrytis cinerea on unheated glasshouse tomatoes. Control of the disease on stems and petioles was best when fogged fungicide was applied at intervals of 3–4 days. Weekly fogging and fortnightly HV treatment were similar in the degree of disease control they achieved whilst the least effective treatment was fortnightly fogging. There was an inverse relationship between disease control and distance from the fogging machine. Control of ghost‐spotting on fruit in the crop canopy was better with HV than with any of the fogging treatments.