Evaluation of three disinfectant cleaners against gray mould caused by Botrytis cinerea in rose cultivation

The causal agent of gray mould Botrytis cinerea is one of the main phytopathogenic fungi limitations in the production of roses. Therefore, it is necessary to apply cleaner products for an adequate disinfection of tools, appliances, equipment and surfaces and thus avoid its dissemination. The aim of this research is to evaluate three commercial disinfectant cleaners: Desogerme_Vegetaux®, Desogerme_Microserre® and PursueTM against B. cinerea in the production of roses. An in vitro assessment conducted determined that the three commercial disinfectant cleaners significantly reduce the growth of the phytopathogen. In fact, the first two disinfectant cleaners retard the growth of mould up to 120 hours and 72 hours respectively. An in vivo assessment conducted in rose stems determined that the product Desogerme_Microserre® presents an 95% efficiency against B. cinerea up to 6 hours after the product application consequently it was the best gray mould control in rose cultivation.