Abstract
Pesticides are used to control any form of plant or organisms that can cause damage to human health or property. Agricultural products are attacked by a variety of pests during the production and storage. Despite usefulness and popularity of pesticides in controlling a variety of pests, they can cause many health risks arising from their exposure and residues in food and water. Also, the effective availabilities of traditional pesticide are usually less than 30% due to losses. Polymers, in the form of micro-nanocarriers, beads, granules and gels, are very important materials for the development of controlled release formulations (CRF) of pesticides which provide slow and controlled release of pesticides and also enhance the water-holding capacity of the soil. In this chapter, various types of natural and synthetic polymers used in the preparation of polymeric formulations and their release behavior are discussed. Various ways by which the diffusion of pesticides in polymer takes place and different formulation methods for controlled release pesticides were also discussed in this chapter.
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