Published in Scientific Papers. Series B, Horticulture, Volume LIX
Written by Aurora Liliana ŞTEFAN, Alexandru PAICA, Flavius IACOB, Beatrice Michaela IACOMI
Gray mold disease or Botrytis rot, caused by Botrytis cinerea, it is well known for significant economic losses invineyards worldwide, in both yield and quality. Management of gray mold it is traditionally based on fungicidetreatments and cultural practices. Fungicide programmes specifically target critical periods during the growingseason: late-bloom, bunch closure, veraison and preharvest. However, controlling Botrytis cinerea is still a challenge,because the pathogen is able to rapidly develop resistance. Also, more stringent regulations governing fungicideresidues have severely restricted chemical control options in conventionally managed vineyards, particularly during thepreharvest period. The objective of our study was to assess the potential of an integrated programme to reduce Botrytisrot, involving fungicides and biological control agents (BCAs). Two experimental bioproducts were tested:Trichopulvin Td85 25 PU (Trichoderma koningii Td85 strain) and Saccharopulvin 25 PU (Saccharomyces cerevisiaeL30b yeast strain). The efficacy of the proposed integrated programme was assessed based on disease incidence anddisease severity in field trials, conducted in Tohani vineyards. This integrated strategy that combines fungicides andbioproducts could offer the option to reduce the number of fungicide treatments, thus minimizing the chemical residues,and manage fungicide resistance development.
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biocontrol agents
