PP 1/303 (2) Efficacy evaluation of products for the control of grapevine trunk diseases in vineyards.

Specific scope: This Standard describes the conduct of trials for the efficacy evaluation of plant protection products against grapevine trunk diseases. This Standard describes setting up short‐term pruning wound trials, based on artificial inoculations, and multi‐year trials based either on natural or artificial infections. Specific approval and amendment: First approved in 2017–09 as PP 1/303 (1) Eutypa lata on grapevine. Revision approved in 2021–09. [ABSTRACT FROM AUTHOR]