subjective, and prone to error (Barbedo, 2019). These limitations frequently result in delayed interventions and
increased crop losses that could otherwise be prevented with earlier diagnosis (Ferentinos, 2018). As a result,
there is growing demand for automated diagnostic tools that can deliver rapid, consistent, and scalable
assessments across diverse agricultural contexts.
Recent developments in computer vision, particularly the application of Convolutional Neural Networks
(CNNs), have shown significant promise in addressing this need. CNNs are capable of extracting high-level
visual features from leaf images, enabling them to identify a wide range of plant diseases with high accuracy
(Mohanty et al., 2016). Studies have demonstrated that, when trained on comprehensive image datasets, CNN-
based models can outperform traditional diagnostic methods and even rival human expert performance
(Brahimi et al., 2017; Liu et al., 2020). These models offer a scalable approach to disease detection that is
well-suited for deployment in field settings.
Accurate crop disease diagnosis is crucial for minimizing crop losses, yet traditional visual inspection methods
are often slow, inconsistent, and reliant on expert availability (Barbedo, 2019; Ferentinos, 2018). With
advancements in artificial intelligence (AI) and image-based diagnostics, Convolutional Neural Networks
(CNNs) have demonstrated superior performance in identifying plant diseases from leaf images—often
surpassing human accuracy (Mohanty, Hughes, & Salathé, 2016; Brahimi, Boukhalfa, & Moussaoui, 2017; Liu
et al., 2020).
Recent advancements in data analytics and machine learning have significantly improved the accuracy and
scalability of plant disease diagnosis systems. Convolutional Neural Networks, in particular, have been widely
adopted due to their strong capability in extracting hierarchical features from leaf images (Ferentinos, 2018).
CNN-based architectures such as AlexNet, VGGNet, and ResNet have been successfully used to classify plant
diseases with high accuracy across various datasets (Mohanty et al., 2016; Brahimi et al., 2017). In addition to
CNNs, techniques such as image augmentation, ensemble learning, and transfer learning have enhanced model
performance and reduced overfitting (Liu et al., 2020). Combined with cloud-based analytics, these algorithms
not only enable real-time diagnosis but also support ongoing improvement through the retraining of models
using updated field data.
Agriculture remains the backbone of rural economies, particularly in developing countries like the Philippines.
In areas such as Brgy. Lidong, Polangui, Albay, local farmers rely heavily on crops like banana, corn, mango,
potato, and wheat for both livelihood and food security. However, one of the major challenges faced by these
farmers is the early detection and accurate diagnosis of crop diseases. The region's tropical climate—
characterized by heavy rainfall, flooding during wet seasons, and drought during El Niño events—further
complicates plant health management and agricultural productivity.
Traditionally, farmers depend on manual inspection or informal advice for diagnosing plant issues. These
methods are often subjective, delayed, or inaccurate, leading to reduced yields, increased use of pesticides, and
economic loss. As the agricultural landscape becomes increasingly vulnerable to climate and pest stressors, the
need for intelligent, technology-driven solutions becomes more urgent.
This study proposes the development of AgroAI, a web-based application powered by Convolutional Neural
Networks (CNNs), designed to detect plant diseases from leaf images. Targeting common crops in the
Philippines, AgroAI enables users—primarily farmers and agricultural technicians—to upload photos of
affected leaves and receive immediate diagnostic feedback. The system prioritizes usability and precision,
ensuring that even users without a technical background can operate the platform effectively. The application's
performance is assessed using key evaluation metrics such as accuracy, precision, recall, and F1-score. Unlike
advisory platforms, AgroAI focuses specifically on visual disease recognition and classification, positioning
itself as a practical tool for early diagnosis and informed decision-making.
This study shows how building a system like AgroAI can help farmers easily detect plant diseases by
uploading images of crop leaves. It aims to give accurate results using Artificial Intelligence, specifically
Convolutional Neural Networks (CNNs), without needing expert knowledge. This makes the process faster