Biological plant protection agent «Trihoplant» is a fungicidal bio-preparation. It is used to protect tomatoes grown on open and closed ground, including for retail sale to the public. The preparation contains the active ingredient Trichoderma lignorum, represented by several strains: GF 2/6, J 2/30Brz, Za 3/19 GF with a titre from 10⁶ to 10⁸ CFU/ml. The preparation is manufactured by the company LLC «KARAVAN» in Ukraine. It is intended for protecting plants from fungal diseases and has a systemic mode of action, ensuring effective absorption and distribution within the plant. The preparation can be used as part of an integrated plant protection program, especially in agricultural crops such as tomatoes.