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Comparative assessment of dosage distributions in cotton resulting from helicopter and ground‐spray treatments
Author(s) -
JOHNSTONE D. R.,
MATTHEWS G. A.
Publication year - 1965
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.1744-7348.1965.tb07956.x
Subject(s) - biology , carbaryl , agronomy , horticulture , botany , pesticide
SUMMARY The distribution of carbaryl resulting from helicopter and ground spray applications on Rhodesian‐grown cotton plants at different stages of growth has been measured. Results for dosage distributions on leaves indicate that at all stages of growth the deposit after helicopter spraying was greatest on the top part of the plant, particularly on the upper surface of the leaves. In general considerably more even cover, though again with higher relative deposit on the upper leaf surface, was recorded after the ground spray treatments.