Tomato Leaf Disease Detection Using Transfer Learning with EfficientNetB3: A CNN-Based Approach

Authors

DOI:

https://doi.org/10.4314/cajost.v7i3.18

Keywords:

Machine Learning, , Tomato leaf images, , Convolutional Neural Networks, , Plant diseases , and Disease detection System.

Abstract

Crop diseases are a real threat to our food supply, and catching them early is 
crucial to protect plants and boost harvests. Many farmers struggle to spot and 
manage these diseases in time, which can lead to significant losses. Our study 
tackles this challenge by developing a CNN-based Image Tomato Disease 
Detection System to help farmers quickly and accurately identify tomato leaf 
diseases. Using a powerful convolutional neural network called EfficientNetB3, 
our system analyzes tomato leaf images to sort them into three categories: 
healthy, yellow leaf curl virus (YLCV), or bacterial spot (BS). We trained the 
model on 1,273 tomato leaf images, running tests for 10 and 20 rounds (or 
epochs), achieving accuracies of 33% and 58%, respectively. After 20 rounds, 
the system also showed a precision of 52%, recall of 54%, and F1-score of 
53%, proving it gets better with more training. This automated tool offers a 
practical way to spot tomato diseases early, helping farmers protect their crops 
and improve both yield and quality. 

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Author Biographies

  • Ese S. Mughele, University of Delta, Agbor

    Ese Sophia Mughele  is the current Head of Department Cyber Security, Faculty of Computing, University of Delta, Agbor, Delta State, Nigeria. She had PhD degree in Computer Science, majoring in Machine Learning and Soft Computing, Other research interest includes; Information Systems Security, Cyber Security Technological Innovation in Education and Gender Study. She is a member of the Computer Professionals Registration Council of Nigeria (CPN), the Nigerian Computer Society (NCS), Organization of Women in Developing World (OWSD), Institute of Electrical Electronic Engineers (IEEE) and Nigeria Women in Information Technology (NIWIIT). Mughele has over 50 peer-reviewed, referenced publications, both national and international.

  • Stella C. Chiemeke , University of Delta, Agbor

    Prof. Stella Chinye Chiemeke is Professor of Computer Science. She’s currently the Vice Chancellor of the University of Delta, Delta State, Nigeria. She bagged her PhD in Computer Science from the Federal University of Technology, Akure in 2004. In the year 1986, she began a career as a programmer and rose to the rank of Professor in 2009 to become the second female Professor of Computer Science in Nigeria. She belongs to various professional bodies both in Nigeria and abroad. Stella specializes in Software Engineering, Digital Forensics, ICT Management, Information Systems Security, Computer Security and Reliability. Prof. Chiemeke has over 120 peer-reviewed, referenced publications, both national and international.

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Published

28-11-2025

How to Cite

Tomato Leaf Disease Detection Using Transfer Learning with EfficientNetB3: A CNN-Based Approach. (2025). CaJoST, 7(3), 454-459. https://doi.org/10.4314/cajost.v7i3.18

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