Before a foliar applied chemical can contact plant protoplasm, it must cross a barrier of cuticle, present on either the external (14) or internal (18) surfaces of the plant. However, little is known about the nature of the cuticle or its interactions with various chemicals.
Proceedings of the Iowa Academy of Science
©1957 Iowa Academy of Science, Inc.
Orgell, Wallace H.
"Sorptive Properties of Plant Cuticle,"
Proceedings of the Iowa Academy of Science, 64(1), 189-198.
Available at: https://scholarworks.uni.edu/pias/vol64/iss1/23