Comparative Analysis of Deep Convolution Neural Networks for Classification of Fungal Diseases in Guava Leaves

Classification of Fungal Diseases in Guava Leaves

Authors

  • Aqsa Jamil The Islamia University of Bahawalpur, Pakistan
  • Dr. Fariha Ashfaq The Islamia University of Bahawalpur, Pakistan
  • Dr.Khizra Saleem The Islamia University of Bahawalpur, Pakistan

Keywords:

Guava Leaves Classification , Deep Learning , Fungal Disease , Multiclass Classification , Fine Tuning

Abstract

Guava, nutrients-rich fruit, is severely affected by various fungal leaf diseases, which hinder fruit development, optimal growth, and bud formation. Among the 177 pathogens known to damage guava leaves, 167 are fungal. However, Effective classification of these diseases is crucial to minimizing economic losses in the food industry. This study focuses on classifying common six fungal diseases in guava leaves, including Pseudocercospora leaf spot, Anthracnose, Canker, Rust, Mummification, and Dot. Deep learning models, such as DenseNet (169,121), EfficientNet (B3), squeeznet, and Alexnet have been used for disease classification but suffer from overfitting and low accuracy on this dataset. To address these limitations, this study evaluates finetuned CNN architectures: EfficientNetB2, EfficientNetB4, and DenseNet201 using both existing and real-world datasets. The models are assessed based on accuracy, precision, recall, and F1 score to determine their effectiveness in classifying fungal diseases.  The findings will provide insights into the performance of deep learning algorithms in guava leaf disease classification and contribute to improved agricultural disease management.

Author Biographies

Aqsa Jamil, The Islamia University of Bahawalpur, Pakistan

Aqsa Jamil MS.Scholar in the Department of Computer Science at The Islamia University of Bahawalpure. Their research focuses on machine learning, deep learning, and its applications in agriculture, particularly in plant disease detection and intelligent systems.

Dr. Fariha Ashfaq, The Islamia University of Bahawalpur, Pakistan

Dr. Fariha Ashfaq is a Lecturer in the Department of Computer Science at The Islamia University of Bahawalpur, Pakistan. Their research focuses on machine learning, deep learning, and their applications in agriculture, particularly in plant disease detection and intelligent systems.

Dr.Khizra Saleem, The Islamia University of Bahawalpur, Pakistan

Khizra Saleem is a Lecturer in the Department of Computer Science at The Islamia University of Bahawalpur, Pakistan. Their research focuses on IoT-based machine learning, WSN, and their applications in agriculture, particularly in plant disease detection and intelligent systems.

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Published

2025-06-30