This study focuses on the remarkable progress made by the agricultural sector in utilizing image processing techniques for early detection and classi cation of leaf plant diseases. Timely identi cation of diseases is crucial, but it often poses a challenge for the human eye to discern subtle differences. To address this issue, the researchers propose a novel approach that employs E cientNet, a deep learning model, to accurately recognize various diseases affecting tomato plant leaves. Transfer learning is applied to three different datasets comprising 3000, 8000, and 10,000 images of diseased tomato leaves. The experimental results demonstrate impressive overall accuracies of 97.3%, 99.2%, and 99.5% when using 3000, 8000, and 10,000 images, respectively, for the detection of common tomato plant diseases. This research underscores the effectiveness of image processing and deep learning techniques in achieving precise and e cient detection of tomato leaf diseases. It signi cantly contributes to the advancement of precision agriculture and enhanced crop management practices.