Controlled Release, Biochemical Effects of Pesticides, Inhibition of Plant Pathogenic Fungi

  • G. Haug
  • H. Hoffmann

Part of the Chemistry of Plant Protection book series (PLANT PROTECTIO, volume 6)

Table of contents

  1. Front Matter
    Pages I-IX
  2. M. Bahadir, G. Pfister
    Pages 1-64
  3. Mohammed A. Q. Khan
    Pages 109-171
  4. Peter Böger, Gerhard Sandmann
    Pages 173-216
  5. Back Matter
    Pages 293-312

About this book

Introduction

Since the middle of the Sixties, new types of formulation for biologically active com­ pounds have been developed, which have been introduced into the literature under the term Controlled Release Formulations (CRF). Stimulated by results from former and successful pharmaceutical research, which was engaged in the production of prepa­ rations with protracted effects (introduction onto the market in the year 1952 of D­ amphetamine in the form of pellets, coated to varying degrees with fats and waxes) 1), experiments were carried out to transfer the prolongation of effectiveness to pesticidal substances also, by means of a depot formulation. Initial work was concerned with the production of protective coatings for sonar systems in marine ecosystems. By means of antifouling paints or rubber coatings containing tri-n-butyl-tin oxide (TBTO), the growth of marine organisms on sonar domes, buoys and hulls in the water could be effectively prevented 2. 3). Controlled release formUlations of pesticides are defined as depot systems which continuously release their toxic constituents into the environment over a specified period of time (usually months to years) 4). According to this definition, such formu­ lations can be successfully employed where a chronic exposure to biologically active compounds is required over a longer period. The following hypothetical example is intended to illustrate this 5). In Fig. 1, the duration of activity of a non-persistent pesticide with a loss rate under environmental conditions of t1/2 = 15 days, is graphically illustrated.

Keywords

Acker- und Pflanzenbau Agriculture Forestry Pathogen Pflanzenschutz Pflanzenschutzmittel Plant Protection Schädlingsbekämpfung chemistry pesticides reaction

Editors and affiliations

  • G. Haug
    • 1
  • H. Hoffmann
    • 1
  1. 1.Pflanzenschutzzentrum Monheim, BayerwerkLeverkusenGermany

Bibliographic information

  • DOI https://doi.org/10.1007/978-3-642-46674-8
  • Copyright Information Springer-Verlag Berlin Heidelberg 1990
  • Publisher Name Springer, Berlin, Heidelberg
  • eBook Packages Springer Book Archive
  • Print ISBN 978-3-642-46676-2
  • Online ISBN 978-3-642-46674-8
  • Series Print ISSN 0937-2148
  • About this book