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All Journal Journal of Tropical Biodiversity and Biotechnology JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Dinarkaya, Shah Mahapati
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science Immunology & microbiology

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Occurrence of Cassava Lace Bug Vatiga illudens (Drake, 1922) (Hemiptera: Heteroptera: Tingidae) in Bali, Indonesia Sudiarta, I Putu; Dinarkaya, Shah Mahapati; Devi, Komang Saraswati; Ariyanta, I Putu Bawa; Wirya, Gusti Ngurah Alit Susanta; Sugiarta, Dwi; Selangga, Dewa Gede Wiryangga; Gargita, I Wayan Diksa; Wiguna, Putu Perdana Kusuma; Yuliadhi, Ketut Ayu; Devi, Putu Shinta
Journal of Tropical Biodiversity and Biotechnology Vol 9, No 1 (2024): March
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtbb.87438

Abstract

Cassava Lace Bugs (CLB) are native pest of cassava (Manihot esculenta Crantz, Euphorbiaceae) to the Neotropical Region, mainly in Brazil. On the other hand, East Java was the first region in Indonesia to record the presence of CLB in 2021, however, it has not been reported in other regions in Indonesia. Therefore, the very importance to recognise the occurrence of CLB in other regions in Indonesia. Based on this, the research has been carried out starting with a field survey, observing behaviour of insect in the field and identify morphologically in the laboratory. The survey results show that the infestation of CLB has been found in lowland, medium, and highland areas in Bali. Symptoms of infestation on the upper leaf surface are small yellow spots with brownish variations. Based on the identification key, CLB from Bali Indonesia, shows a characteristic of a head with a pair of frontal spines. Based on this evidence, the CLB insect can be identified as Vatiga illudens (Hemiptera: Heteroptera: Tingidae). It is the first report of novel distribution areas for V. illudens in Bali, Indonesia. The results of this research are important because V. illudens is one of the main pests of cassava. 
Symptoms variation and molecular characterization of Strawberry vein banding virus in Bali, Indonesia Phabiola, Trisna Agung; Selangga, Dewa Gede Wiryangga; Wirya, Gusti Ngurah Alit Susanta; Sudiarta, I Putu; Dinarkaya, Shah Mahapati; Listihani, Listihani
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 25 No. 1 (2025): MARCH, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA: JOURNAL OF TROPICAL PLANT PE
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jhptt.12544-53

Abstract

Vein banding disease has affected young strawberry leaves in Bali over the past five years. Caused by Strawberry vein banding virus (SVBV), the disease is primarily associated with fruit size reduction, though its exact impact remains unclear. This study aims to assess symptom variation, disease severity, and the molecular characteristics of SVBV in Bali strawberry plants. Field observations and molecular identification were conducted using PCR with SVBV-specific primers targeting the CP gene. Samples were collected from ten locations in Bali, including Pancasari, Candikuning, Wanagiri, Gobleg, and Kembang Merta. SVBV DNA from Candikuning, Pancasari, and Kembang Merta was successfully amplified, confirming SVBV infection as the cause of vein banding symptoms. SVBV induces vein banding with upward and downward leaf curling. Disease incidence was highest in Pancasari 1 and 3 (80%) and lowest in Wanagiri 1 and Gobleg (20–28%). Disease severity ranged from 13% to 83%, with the highest recorded in Pancasari, Buleleng, and the lowest in Kembang Merta, Tabanan. Molecular analysis revealed that the SVBV isolate from Bali shares 99.3–100% sequence homology with Chilean isolates. Phylogenetic analysis showed clustering with SVBV isolates from the United States, Brazil, and Chile. This study provides the first molecular characterization of SVBV in Bali, contributing to a better understanding of its epidemiology and potential impact on strawberry production.
Co-Authors ARIYANTA, I PUTU BAWA Devi, Komang Saraswati Devi, Putu Shinta GARGITA, I WAYAN DIKSA Gusti Ngurah Alit Susanta Wirya I Putu Sudiarta KETUT AYU YULIADHI Listihani, Listihani Putu Perdana Kusuma Wiguna Selangga, Dewa Gede Wiryangga SUGIARTA, DWI TRISNA AGUNG PHABIOLA