Fuente: WIPO "tomato" The disclosure relates to bioactive compositions comprising at least one mastoparan peptide and a carrier and/or adjuvant, or at least one modified mastoparan peptide and use of such bioactive compositions to protect plants from infection by pests or pathogens. More specifically, the disclosure provides a method for treating and/or ameliorating a pest and/or pathogen in a Citrus or Solanaceae plant or plant part in need thereof, the method comprising treating the plant or plant part with an effective amount of a bioactive composition comprising at least one mastoparan peptide and a carrier and/or adjuvant, or at least one modified mastoparan peptide to treat and/or ameliorate the pest and/or pathogen in the Citrus or Solanaceae plant.