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United States Department of Agriculture

Agricultural Research Service

Title: Use of Particle Film Technology, "surround," in Horticulture

Author
item Glenn, D Michael

Research conducted cooperatively with:
item Engelhard Corporation

Submitted to: Meeting Abstract
Publication Type: Proceedings
Publication Acceptance Date: December 1, 2005
Publication Date: December 13, 2005
Citation: Glenn, D.M. 2005. Use of particle film technology, "surround," in horticulture. Meeting Abstract.

Technical Abstract: Scientific evidence that chemically active pesticides are residually present on food, in water supplies, in the soil, and that these chemicals may interfere with animal growth and development has resulted in a mandate to develop reduced risk alternatives to chemical pesticides. New paradigms were needed to control plant pests in an economically sustainable and environmentally safe manner. Particle film technology is a combined synthesis of knowledge on mineral technology, insect behavior, and light physics as they apply to pest control and plant physiology. Current particle film technology is based on kaolin, an aluminosilicate mineral that easily disperses in water and is chemically inert over a wide pH range. Technical advances in kaolin processing have made it possible to produce kaolin particles with specific sizes, shapes, and light reflective properties. An effective particle film on plant tissues has certain characteristics: (1) chemically inert mineral particle, (2) particle diameter <2 um, (3) formulated to spread and creat a uniform film, (4) porous film that does not interfere with gas exchange from the leaf, (5) transmits photosynthetically active radiation (PAR) but excludes ultraviolet and infrared radiation to some degree, (6) alters insect/pathogen behavior on the plant, and (7) can be removed from harvested commodities. Many of these characteristics are similar to natural plant defenses consisting of increasing cuticle thickness and pubescence to reduce water and heat stress and to interfere with disease and insect damage. The purpose of this presentation is to describe the use of particle films in agriculture.

Last Modified: 10/23/2014
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