Penelitian ini bertujuan untuk mengetahui virus pada tanaman hortikultura di Kota Tarakan serta insidensinya. Metode yang digunakan dalam penelitian ini yaitu survei lapangan, pengambilan sampel, dan uji kesesuaian inang. Survei dilakukan di setiap kecamatan yang berada di Kota Tarakan untuk mengumpulkan data tanaman hortikultura yang terinfeksi penyakit virus dan untuk memperoleh data tingkat insidensi penyakit virus dengan kriteria minimal 500 tanaman dalam satu lahan budidaya. Tanaman sampel yang menunjukkan adanya gejala infeksi penyakit virus di uji kesesuaian inangnya menggunakan metode pelukaan. Hasil penelitian menunjukkan bahwa beberapa virus ditemukan menginfeksi tanaman hortikultura dengan insidensi yang bervariasi. Virus yang ditemukan Chilli yellow leaf curl virus (CYLCV), Tomatto yellow leaf curl virus (TYLCV), Eggplant yellow leaf virus (EYLV), Cucumber mosaic virus (CMV), dan Watermelon mosaic virus (WMV).

Kata Kunci: Gejala, Hortikultura, Insidensi Virus

This study aimed to determine the virus in horticultural crops in Tarakan City and its incidence. The methods used in this research were field survey, sampling, and host suitability test. Surveys were conducted in each sub-district in Tarakan City to collect data on horticultural plants infected with the virus disease and to obtain data on the incidence rate of the virus disease with a minimum criterion of 500 plants in one cultivation field. Sample plants that showed symptoms of virus disease infection were tested for host suitability using the wounding method. The results showed that several viruses were found to infect horticultural crops with varying incidence. The viruses found were Chilli yellow leaf curl virus (CYLCV), Tomato yellow leaf curl virus (TYLCV), Eggplant yellow leaf virus (EYLV), Cucumber mosaic virus (CMV), and Watermelon mosaic virus (WMV). Keywords: Symptoms, Horticulture, Virus Incidense