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Bhandari, M.; Shahi, T.B.; Neupane, A.; Walsh, K.B. Identification of Tomato Leaf Diseases. Encyclopedia. Available online: (accessed on 15 April 2024).
Bhandari M, Shahi TB, Neupane A, Walsh KB. Identification of Tomato Leaf Diseases. Encyclopedia. Available at: Accessed April 15, 2024.
Bhandari, Mohan, Tej Bahadur Shahi, Arjun Neupane, Kerry Brian Walsh. "Identification of Tomato Leaf Diseases" Encyclopedia, (accessed April 15, 2024).
Bhandari, M., Shahi, T.B., Neupane, A., & Walsh, K.B. (2024, March 12). Identification of Tomato Leaf Diseases. In Encyclopedia.
Bhandari, Mohan, et al. "Identification of Tomato Leaf Diseases." Encyclopedia. Web. 12 March, 2024.
Identification of Tomato Leaf Diseases

Early detection and control of crop disease is essential for farmers, stakeholders, and precision agriculture researchers to reduce the production losses. Early and accurate tomato disease detection using easily available leaf photos is essential for farmers and stakeholders as it help reduce yield loss due to possible disease epidemics.

tomato leaf diseases deep learning

1. Introduction

Early detection and control of crop disease is essential for farmers, stakeholders, and precision agriculture researchers to reduce the production losses. Current farm practices rely on visual identification of plant diseases by farm staff with the backup of specialists using additional resources and tools, such as microscopes [1]. However, agricultural professionals cannot constantly be present in the field to perform thorough monitoring, and farmers lack the expertise required to conduct the detection procedure [2].
Multispectral, RGB, and hyperspectral sensors have been used for crop-disease detection [3]. Recently, crop-disease detection utilizing a variety of image sensors has shown encouraging results when combining data-driven approaches, such as machine learning (ML) and deep learning (DL) [4]. Tomatoes are a commercially significant vegetable crop on a global scale, and various pathogens (viral, bacterial, and fungal illnesses [5][6][7][8]) that affect tomatoes have been identified [9].
A number of researchers have focused on the use of classification models in disease diagnosis. The majority of the suggested classifiers are developed and validated, with an emphasis on extracting deep features from images in order to categorize the foliage disorders [10][11]. For instance, in an experiment, Trivedi et al. [12] classified nine different kinds of tomato leaf diseases using a convolution neural network and a dataset of 3000 tomato leaves. They attained an accuracy of 98.49% using pre-processed and segmented tomato leaf images.
Although the existing deep-learning models for tomato-leaf-disease recognition achieved high accuracy on selected leaf image datasets, their interpretability and explainability are not sufficiently investigated to engender trust in using such models in practice. The eXplainable Artificial Intelligence (XAI) and DL algorithms that produce human-readable explanations for AI judgments lay the groundwork for imaging-based artificial-intelligence applications [13] in various domains, such as health informatics [14], computer vision [15], and many more.
Given that DL-based learning may autonomously extract features from an image without the need for human feature engineering, it is vital to explain the model’s output in cases when the XAI can enhance it. A few studies have anticipated XAI with DL models for the prediction of different subtypes of tomato leaf diseases (TLD) to include explanatory results [16]

2. Identification of Tomato Leaf Diseases

DL models have made significant advances in a variety of fields including, but not limited to, deep fakes [17][18], satellite image analysis [19], image classification [20][21], the optimization of artificial neural networks [22][23], the processing of natural language [24][25], fin-tech [26], intrusion detection [27], steganography [28], and biomedical image analysis [14][29]. CNNs have recently surfaced as one of the most commonly used techniques for plant disease identification [30][31].
By removing the constraints brought on by poor illumination and homogeneity in complicated environment scenarios, several works have concentrated their efforts on recognizing characteristics, while some authors have introduced real-time prediction [32][33]. For instance, research has been performed using DL models with the advancement of XAI techniques to develop a disease detection system with the major objective of pinpointing the disease and identifying the major areas of the plant and their parts that contribute to the classification [16][34].
The PlantVillage (PV) [35] dataset is a publicly available resource that contains images of various plant leaves with a range of disorders, including a tomato leaf disorder (TLD) [33]. This dataset has been used in multiple research works, including the following: Zhao et al. [36] achieved classification of TLDs using a multi-class feature-extraction approach. The residual block and the attention strategies were both integrated into the model, which was built on a deep CNN model. The model outperformed various deep-learning models with an overall accuracy of 99.24%.
Using the same image set, Bhujel et al. [37] examined the effectiveness of identifying various tomato diseases using a lightweight DL model. To enhance the performance of the model, a lightweight CNN method was combined with a number of attention strategies. The study explored the network architecture, performance, and computational complexity for the TLD dataset. The results showed improving classification accuracy upon building the compact and computationally efficient model with an accuracy of 99.69%.
TLD categorization was suggested by Ozbılge et al. [38] as an alternative to the well-known pre-trained knowledge-transferred ImageNet deep-network model and the compact deep-neural-network design with only six layers. The model’s performance on the PVdataset was tested using a number of statistical methods, and an accuracy of 99.70% was achieved. Antonio et. al. [39] suggested the use of a custom CNN-based architecture, which achieved a training accuracy of 99.99%, validation accuracy of 99.64%, precision of 99.00%, and a F1-score of 99.00% with the PV tomato dataset. With regard to the classification of the nine tomato illnesses, the recall metric had a value of 0.99.
The PlantVillage dataset was also utilized by Suryawati et al. [40] to train a model using Alexnet, GoogleNet, and VGGNet, which achieved test accuracies of 91.52%, 89.68%, and 95.25%, respectively. Transfer learning was used by Hong et al. [41] to reduce the quantity of training data needed, the amount of time typically required, and the cost of computation. Five deep-network topologies—Xception, Resnet50, MobileNet, ShuffleNet, and Densenet121—were employed to glean features from the 10 various tomato leaf disorders form the PV dataset. During the experiment, network architectures with various learning rates were contrasted. ShuffleNet had a recognition accuracy of 83.68%, whereas DenseNet and Xception had accuracies of 97.10% when the parameters were at their highest.
Vijay et al. [42] used CNN and K-nearest neighbor (KNN) models in their classification of tomato leaf disorders using the PlantVillage dataset, while LIME was used to provide explainability for the predictions made by each model. The CNN model performed better than the KNN model when used to detect leaf disease. The accuracy, precision, recall, and F1-score of the CNN model were 98.5%, 93%, 93% and 93%—all greater than those of the KNN model, which only managed to reach values of 83.6%, 90%, 84%, and 86%, respectively. Noyan et al. [43] claimed that the PlantVillage dataset is biased through the association of the background color to specific TLDs with an accuracy of around 40% for classification based on the use of background pixels only. However, Mzoughi et al. [44] demonstrated bias in the PV dataset, with image background colour associated with disease class. Additionally, they also showed improved identification outcomes, particularly in the setting of pictures with complicated backgrounds.
Kaur et al. [45] used an EfficientNetB7 model to examine leaf diseases of grape plants from the PlantVillage dataset. For the purpose of extracting the most important characteristics, the fully connected layer was created. The variance approach was then used to exclude extraneous features from the feature extractor vector. The logistic regression approach was then used to minimize the characteristics that had achieved a classification precision of 98.7%.


  1. Bock, C.; Parker, P.; Cook, A.; Gottwald, T. Visual rating and the use of image analysis for assessing different symptoms of citrus canker on grapefruit leaves. Plant Dis. 2008, 92, 530–541.
  2. Khakimov, A.; Salakhutdinov, I.; Omolikov, A.; Utaganov, S. Traditional and current-prospective methods of agricultural plant diseases detection: A review. IOP Conf. Ser. Earth Environ. Sci. 2022, 951, 012002.
  3. Tsouros, D.C.; Bibi, S.; Sarigiannidis, P.G. A review on UAV-based applications for precision agriculture. Information 2019, 10, 349.
  4. Bouguettaya, A.; Zarzour, H.; Kechida, A.; Taberkit, A.M. Deep learning techniques to classify agricultural crops through UAV imagery: A review. Neural Comput. Appl. 2022, 34, 9511–9536.
  5. Rietra, R.; Heinen, M.; Oenema, O. A Review of Crop Husbandry and Soil Management Practices Using Meta-Analysis Studies: Towards Soil-Improving Cropping Systems. Land 2022, 11, 255.
  6. Collinge, D.B.; Jensen, D.F.; Rabiey, M.; Sarrocco, S.; Shaw, M.W.; Shaw, R.H. Biological control of plant diseases–what has been achieved and what is the direction? Plant Pathol. 2022, 71, 1024–1047.
  7. Elsakhawy, T.; Omara, A.E.D.; Abowaly, M.; El-Ramady, H.; Badgar, K.; Llanaj, X.; Törős, G.; Hajdú, P.; Prokisch, J. Green Synthesis of Nanoparticles by Mushrooms: A Crucial Dimension for Sustainable Soil Management. Sustainability 2022, 14, 4328.
  8. Singh, A.; Goswami, S.; Vinutha, T.; Jain, R.; Ramesh, S.; Praveen, S. Retrotransposons-based genetic regulation underlies the cellular response to two genetically diverse viral infections in tomato. Physiol. Mol. Plant Pathol. 2022, 120, 101839.
  9. Fidan, H.; Gonbadi, A.; Sarikaya, P.; Çaliş, Ö. Investigation of activity of Tobamovirus in pepper plants containing L4 resistance gene. Mediterr. Agric. Sci. 2022, 35, 83–90.
  10. Kumar, M.S.; Ganesh, D.; Turukmane, A.V.; Batta, U.; Sayyadliyakat, K.K. Deep Convolution Neural Network Based solution for Detecting Plant Diseases. J. Pharm. Negat. Results 2022, 13, 464–471.
  11. Russel, N.S.; Selvaraj, A. Leaf species and disease classification using multiscale parallel deep CNN architecture. Neural Comput. Appl. 2022, 34, 19217–19237.
  12. Trivedi, N.K.; Gautam, V.; Anand, A.; Aljahdali, H.M.; Villar, S.G.; Anand, D.; Goyal, N.; Kadry, S. Early Detection and Classification of Tomato Leaf Disease Using High-Performance Deep Neural Network. Sensors 2021, 21, 7987.
  13. Munquad, S.; Si, T.; Mallik, S.; Das, A.B.; Zhao, Z. A Deep Learning–Based Framework for Supporting Clinical Diagnosis of Glioblastoma Subtypes. Front. Genet. 2022, 13, 855420.
  14. Bhandari, M.; Shahi, T.B.; Siku, B.; Neupane, A. Explanatory classification of CXR images into COVID-19, Pneumonia and Tuberculosis using deep learning and XAI. Comput. Biol. Med. 2022, 150, 106156.
  15. Selvaraju, R.R.; Cogswell, M.; Das, A.; Vedantam, R.; Parikh, D.; Batra, D. Grad-CAM: Visual Explanations from Deep Networks via Gradient-Based Localization. Int. J. Comput. Vis. 2020, 128, 336–359.
  16. Kinger, S.; Kulkarni, V. Explainable ai for deep learning based disease detection. In Proceedings of the 2021 Thirteenth International Conference on Contemporary Computing (IC3-2021), Noida, India, 5–7 August 2021; pp. 209–216.
  17. Bhandari, M.; Neupane, A.; Mallik, S.; Gaur, L.; Qin, H. Auguring Fake Face Images Using Dual Input Convolution Neural Network. J. Imaging 2023, 9, 3.
  18. Masood, M.; Nawaz, M.; Malik, K.M.; Javed, A.; Irtaza, A.; Malik, H. Deepfakes Generation and Detection: State-of-the-art, open challenges, countermeasures, and way forward. Appl. Intell. 2022, 53, 3974–4026.
  19. McAllister, E.; Payo, A.; Novellino, A.; Dolphin, T.; Medina-Lopez, E. Multispectral satellite imagery and machine learning for the extraction of shoreline indicators. Coast. Eng. 2022, 174, 104102.
  20. Liu, J.; Wang, X.; Liu, G. Tomato pests recognition algorithm based on improved YOLOv4. Front. Plant Sci. 2022, 13, 1894.
  21. Arco, J.E.; Ortiz, A.; Ramírez, J.; Martínez-Murcia, F.J.; Zhang, Y.D.; Górriz, J.M. Uncertainty-driven ensembles of multi-scale deep architectures for image classification. Inf. Fusion 2023, 89, 53–65.
  22. Bhandari, M.; Parajuli, P.; Chapagain, P.; Gaur, L. Evaluating Performance of Adam Optimization by Proposing Energy Index. In Recent Trends in Image Processing and Pattern Recognition: Proceedings of the fourth International Conference, RTIP2R 2021, Msida, Malta, 8–10 December 2021; Santosh, K., Hegadi, R., Pal, U., Eds.; Springer International Publishing: Cham, Switzerland, 2022; pp. 156–168.
  23. Alsaiari, A.O.; Moustafa, E.B.; Alhumade, H.; Abulkhair, H.; Elsheikh, A. A coupled artificial neural network with artificial rabbits optimizer for predicting water productivity of different designs of solar stills. Adv. Eng. Softw. 2023, 175, 103315.
  24. Shahi, T.B.; Sitaula, C. Natural language processing for Nepali text: A review. Artif. Intell. Rev. 2021, 55, 3401–3429.
  25. Liu, P.; Yuan, W.; Fu, J.; Jiang, Z.; Hayashi, H.; Neubig, G. Pre-train, prompt, and predict: A systematic survey of prompting methods in natural language processing. ACM Comput. Surv. 2023, 55, 1–35.
  26. Khanal, M.; Khadka, S.R.; Subedi, H.; Chaulagain, I.P.; Regmi, L.N.; Bhandari, M. Explaining the Factors Affecting Customer Satisfaction at the Fintech Firm F1 Soft by Using PCA and XAI. FinTech 2023, 2, 70–84.
  27. Chapagain, P.; Timalsina, A.; Bhandari, M.; Chitrakar, R. Intrusion Detection Based on PCA with Improved K-Means. In Proceedings of the Innovations in Electrical and Electronic Engineering, New Delhi, India, 8–9 January 2022; Mekhilef, S., Shaw, R.N., Siano, P., Eds.; Springer: Singapore, 2022; pp. 13–27.
  28. Bhandari, M.; Panday, S.; Bhatta, C.P.; Panday, S.P. Image Steganography Approach Based Ant Colony Optimization with Triangular Chaotic Map. In Proceedings of the 2022 second International Conference on Innovative Practices in Technology and Management (ICIPTM), Pradesh, India, 23–25 February 2022; Volume 2, pp. 429–434.
  29. Chakraborty, S.; Mali, K. An overview of biomedical image analysis from the deep learning perspective. In Research Anthology on Improving Medical Imaging Techniques for Analysis and Intervention; IGI Global: Hershey, PA, USA, 2023; pp. 43–59.
  30. Lakshmanarao, A.; Babu, M.R.; Kiran, T.S.R. Plant Disease Prediction and classification using Deep Learning ConvNets. In Proceedings of the 2021 International Conference on Artificial Intelligence and Machine Vision (AIMV), Gandhinagar, India, 24–26 September 2021; pp. 1–6.
  31. Militante, S.V.; Gerardo, B.D.; Dionisio, N.V. Plant leaf detection and disease recognition using deep learning. In Proceedings of the 2019 IEEE Eurasia Conference on IOT, Communication and Engineering (ECICE), Yunlin, Taiwan, 3–6 October 2019; pp. 579–582.
  32. Mattihalli, C.; Gedefaye, E.; Endalamaw, F.; Necho, A. Real time automation of agriculture land, by automatically detecting plant leaf diseases and auto medicine. In Proceedings of the 2018 32nd International Conference on Advanced Information Networking and Applications Workshops (WAINA), Krakow, Poland, 16–18 May 2018; pp. 325–330.
  33. Pinto, L.A.; Mary, L.; Dass, S. The Real-Time Mobile Application for Identification of Diseases in Coffee Leaves using the CNN Model. In Proceedings of the 2021 Second International Conference on Electronics and Sustainable Communication Systems (ICESC), Coimbatore, India, 4–6 August 2021; pp. 1694–1700.
  34. Gaur, L.; Bhandari, M.; Shikhar, B.S.; Nz, J.; Shorfuzzaman, M.; Masud, M. Explanation-Driven HCI Model to Examine the Mini-Mental State for Alzheimer’s Disease. ACM Trans. Multimed. Comput. Commun. Appl. 2022.
  35. Hughes, D.; Salathé, M. An open access repository of images on plant health to enable the development of mobile disease diagnostics. arXiv 2015, arXiv:1511.08060.
  36. Zhao, S.; Peng, Y.; Liu, J.; Wu, S. Tomato leaf disease diagnosis based on improved convolution neural network by attention module. Agriculture 2021, 11, 651.
  37. Bhujel, A.; Kim, N.E.; Arulmozhi, E.; Basak, J.K.; Kim, H.T. A lightweight Attention-based convolutional neural networks for tomato leaf disease classification. Agriculture 2022, 12, 228.
  38. Ozbılge, E.; Ulukok, M.K.; Toygar, O.; Ozbılge, E. Tomato Disease Recognition Using a Compact Convolutional Neural Network. IEEE Access 2022, 10, 77213–77224.
  39. Guerrero-Ibañez, A.; Reyes-Muñoz, A. Monitoring Tomato Leaf Disease through Convolutional Neural Networks. Electronics 2023, 12, 229.
  40. Suryawati, E.; Sustika, R.; Yuwana, R.; Subekti, A.; Pardede, H. Deep Structured Convolutional Neural Network for Tomato Diseases Detection. In Proceedings of the 2018 International Conference on Advanced Computer Science and Information Systems (ICACSIS), Yogyakarta, Indonesia, 27–28 October 2018; pp. 385–390.
  41. Hong, H.; Lin, J.; Huang, F. Tomato Disease Detection and Classification by Deep Learning. In Proceedings of the 2020 International Conference on Big Data, Artificial Intelligence and Internet of Things Engineering (ICBAIE), Fuzhou, China, 12–14 June 2020; pp. 25–29.
  42. Vijay, N. Detection of Plant Diseases in Tomato Leaves: With Focus on Providing Explainability and Evaluating User Trust. Master’s Thesis, University of Skövde, Skövde, Sweden, September 2021.
  43. Noyan, M.A. Uncovering bias in the PlantVillage dataset. arXiv 2022, arXiv:2206.04374.
  44. Mzoughi, O.; Yahiaoui, I. Deep learning-based segmentation for disease identification. Ecol. Inform. 2023, 75, 102000.
  45. Kaur, P.; Harnal, S.; Tiwari, R.; Upadhyay, S.; Bhatia, S.; Mashat, A.; Alabdali, A.M. Recognition of leaf disease using hybrid convolutional neural network by applying feature reduction. Sensors 2022, 22, 575.
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