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Thus, these secondary compounds represent a large reservoirof chemical structures with biological activity. Thereis growing evidence that most of these compounds are involved in theinteraction of plants with other species-primarily the defense of the plantfrom plant pests. Tens of thousands of secondary products of plants have been identified andthere are estimates that hundreds of thousands of these compounds exist. Thus, natural compoundshave increasingly become the focus of those interested in discovery ofpesticides. Furthermore, most syntheticchemicals that have been commercialized as herbicides are halogenatedhydrocarbons with relatively long environmental half-lives and more suspecttoxicological properties than most natural compounds. The increasing incidence of pesticide resistance isalso fueling the need for new pesticides. New herbicides will be needed tofully meet this challenge. The average number ofcompounds that must be screened to discover a commercially viable pesticide hasincreased dramatically, so that new discovery strategies must be considered.Increased emphasis on reduced-tillage agriculture will make adequate control ofweeds more dependent on chemical control. Mostcommercially successful pesticides have been discovered by screening compoundssynthesized in the laboratory for pesticidal properties. INTRODUCTIONSeveral pressures have accelerated the search for more environmentally andtoxicologically safe and more selective and efficacious pesticides. FACTORS INFLUENCING DEVELOPMENT OF NATURAL PESTICIDES.PLANT-DERIVED COMPOUNDS WITH PESTICIDAL POTENTIAL.
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Natural Pesticides from Plants Stephen O. Natural Pesticides from Plantss Index | Search | Home | Table of ContentsÄuke, S.O.