Bio-products partially protect grapevine pruning wounds against infection of the trunk pathogen Lasiodiplodia theobromae

Abstract

One of the challenges related with grapevine trunk diseases in Argentina, called “Hoja de Malvón” (HdM), is the implementation of efficient, safe and organic control strategies. Bio-products derived from organic wastes that exploit the presence of beneficial microorganisms could be an alternative option. In the present study, aerated, non-aerated compost teas and bio-slurry were evaluated to protect pruning wounds against Lasiodiplodia theobromae, one of the most prevalent fungi associated with HdM. Sodium bicarbonate and thiophanate methyl were included in the field trials.