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Spraying arabica coffee for the control of coffee berry disease
Author(s) -
WALLIS J. A. N.,
FIRMAN I. D.
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.tb07876.x
Subject(s) - berry , biology , green coffee , coffea arabica , yield (engineering) , horticulture , sampling (signal processing) , toxicology , botany , agronomy , food science , materials science , metallurgy , filter (signal processing) , computer science , computer vision
SUMMARY Three sprayers were used in each of three field trials to apply 8.4 g. of Perenox† per tree in a range of spray volumes from 0.2 to 1.7 1. Copper deposits and conidial inoculum potential were determined on sample branches. The critical sampling zone was between the fifth and eighth node proximal to the youngest node flowering in the current season. The low‐volume treatments were as effective as the highest (standard) volume in terms of copper deposit, reduction in inoculum potential and the number of diseased fruit, and in increasing the yield of coffee in the first year of the trials.