In: Recent Developments in Management of Plant Diseases / Gisi, U., Chet, I., Gullino, M.L., Dordrecht Heidelberg London New York : Springer (Plant Pathology in the 21st Century, Vol. 1. Vol. 1, part 2) - ISBN 9781402088032 - p. 107 - 119.
Candidate antagonists for the development of biocontrol agents have to fulfill many criteria. The criterion often investigated first in detail is the antagonistic potential of candidates against the target pathogen. However, candidates must also have high ecological competence, must be suitable for an economically feasible production and must be safe in use. Consequently, a broad range of criteria must be tested to fulfill the key factors for success of a biocontrol product. Assays are needed to test such major criteria in simple and inexpensive high throughput systems to exclude candidates in an early stage which may show strong antagonisms but do not fulfill other major criteria for a successful commercialization. The case of a screening program aimed at the biological control of apple scab caused by Venturia inaequalis is presented and discussed. Keywords Biological control - Foliar diseases - Screening - Selection criteria
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