A survey: to identify plant leaf diseases by feature extraction methods and classification techniques.

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conclusionThis survey concludes that CNN-based deep learning models offer opportunities for early and accurate plant disease detection, supporting sustainable agriculture while acknowledging potential challenges in practical real-world application. Deep learning (DL) methods have transformed image-based plant disease diagnosis by addressing complex challenges specific to crop health monitoring in agriculture. The automated identification and classification of plant disease from images have significant interest, which can be expected to increase crop health monitoring and agricultural productivity. Yet, notwithstanding these benefits, image-based identification of plant diseases is a sophisticated challenge. Proper identification of certain plant varieties and proper determination of disease manifestations are key factors in the administration of effective care and sustainable management of disease. In this research paper an extensive overview Convolutional Neural Networks (CNNs) is implemented using deep learning method for disease detection in plants. This article focuses particularly on highlighting recent research achievements by the last half-decade emphasizing CNN-based models constructed for detecting plant leaf disease. The survey delves into key innovations, methods, and issues faced with the application of CNNs to monitor plant health. Specifically, it highlights the manner in which deep convolutional neural networks (DCNNs), learned using large-scale image databases, are becoming effective means of early and precise detection of plant diseases. Lastly, this paper charts exciting future directions for DL-aided plant disease diagnosis, while providing a balanced critique of the potential, as well as the limitations of CNNs in practical agricultural contexts.