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Physico‐chemical studies on agricultural sprays. V. —The incorporation of wetting agents in high‐volume sprays
Author(s) -
Furmidge C. G. L.
Publication year - 1964
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.2740150807
Subject(s) - wetting , toxicant , volume (thermodynamics) , chemistry , chemical engineering , solid surface , materials science , composite material , organic chemistry , thermodynamics , toxicity , chemical physics , physics , engineering
Abstract The relative efficiency with which a number of surface‐active agents promote the wetting of various leaf surfaces and a beeswax surface has been studied. The efficiency of a wetting agent is governed both by its chemical structure and by the nature of the solid surface involved. The primary purpose of adding wetting agents to spray formulations is to increase the degree of cover of the target surface by the spray liquid. However, coverage is only one of the many factors that govern the efficiency of a spray application and the presence of wetters may affect also the physical stability of the spray formulation, the retention of spray and the deposition of toxicant on the target surface, the persistence and the biological activity of the toxicant deposit, and the phytotoxicity of the spray. These factors are discussed in relation to the choice of the most appropriate wetting agent to use in high‐volume sprays.