The Online Dictionary of Plant protection was launched in 2024 as an accessible resource in all contexts for researchers, students and farmers. This culture, with constant updates, always tries to provide all the important words and concepts of Plant protection in a classified manner. The launching of this dictionary is an important milestone in the field of plant protection and provides a comprehensive guide to essential terms and concepts to become more familiar with insects, diseases and environmental stressors, facilitating knowledge exchange and scientific collaboration.