The number of plant protection products based on micro-organisms, botanicals and semiochemicals is gradually increasing. Such biopesticide products generally require a greater deal of attention during use than conventional chemical pesticides to obtain best effects. This guide describes the biopesticides registered as plant protection products and outlines how they can be used successfully as part of integrated pest management (IPM) programmes in horticultural crops. It discusses the types of biopesticide available and how they work, and their advantages and limitations. A list of biopesticides currently available in the UK is provided.
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