Efficacy of the Biofungicide PolyversumTM in Controlling Botrytis cinerea Pers. on Raspberry Fruits

Abstract

Efficacy of a biological fungicide product, Polyversum™ (Pythium oligandrum Drechsler), in controlling grey mould of raspberries Botrytis cinerea Pers. was tested at sites around Valjevo, Požega and Šabac in 2004, 2005 and 2006. The experiments were conducted anddata processed using EPPO methods.Efficacy was found to be significantly lower statistically in the experimental variants involving Polyversum™ biofungicide (E = 18.0%-53.9%) than the standard botricide Ronilan-DF (E = 56.6%-90.3%).Our results show that the biological product Polyversum™ achieved significant efficacy although poorer than the standard fungicide Ronilan-DF. As it is a biological product almost entirely free of any toxicological and ecotoxicological limitations, it offers a significant advantage for widespread usage in plant protection.

Keywords

• Polyversum
• Pythium oligandrum
• Botrytis cinerea
• Raspberries
• Efficacy