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Devi, Putu Shinta
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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. 
The First Report of the Occurrence of the Root Mealybug Ripersiella multiporifera Jansen (2008) (Hemiptera: Coccoidea: Rhizoecidae) in Indonesia Devi, Komang Saraswati; Sudiarta, I Putu; Sunari, Anak Agung Ayu Agung Sri; Wirya, Gusti Ngurah Alit Susanta; Devi, Putu Shinta; Eka Wijayanti, Febri
Journal of Tropical Biodiversity and Biotechnology Vol 9, No 2 (2024): June
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtbb.89662

Abstract

Ripersiella multiporifera is a root mealybug species within the family Rhizoecidae that has distinctive bitubular pores on the dorsal and ventral. This species was first discovered by Jansen (2008) in the Netherlands during an import interception of Sansevieria sp. from Indonesia and Hoya kerrii from Thailand. This species was also found during inspections in Sicily (Italy) on the roots of Sansevieria trifasciata. In Indonesia, there are no reports of the existence of R. multiporifera, emphasising the need for research on its presence. This work was conducted the morphological method based on modified determination key and the molecular method based on MtCOI gene. The identified species was R. multiporifera, and this finding represents the first evidence of R. multiporifera's presence in Bali (Indonesia) which can be used as a reference for future research, especially in population control approaches. 
Co-Authors ARIYANTA, I PUTU BAWA Devi, Komang Saraswati Dinarkaya, Shah Mahapati Eka Wijayanti, Febri GARGITA, I WAYAN DIKSA Gusti Ngurah Alit Susanta Wirya I Putu Sudiarta KETUT AYU YULIADHI Putu Perdana Kusuma Wiguna Selangga, Dewa Gede Wiryangga SUGIARTA, DWI SUNARI, ANAK AGUNG AYU AGUNG SRI