In Jeju, a significant agricultural concern has emerged as imported seedlings of tomatoes, peppers, and watermelons were found to be infected with Tomato Spotted Virus and Tomato Yellow Leaf Curl Virus, both of which are internationally banned due to their severe impact on crop health. These viruses, common in regions like the United States, Europe, and Japan, lead to stunted growth, death of shoots, and discolored, curling leaves, posing a substantial threat to local agriculture. The Jeju Special Self-Governing Province Agricultural Research and Extension Services has alerted farmers to the presence of these viruses, which spread through small pests and are aided by weather conditions favorable to these pests, urging them to adopt preventive measures to protect their crops.