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All Journal HAYATI Journal of Biosciences Interaksi : Jurnal Ilmu Komunikasi Agrivet Proceeding International Conference on Global Resource Conservation Techno LPPM Jurnal Perlindungan Tanaman Indonesia Jurnal Agro Wiralodra
Mofit Eko Poerwanto
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Health Professions Law, Crime, Criminology & Criminal Justice Other

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Repellent Ability of Encapsulated Guava Leaves Extract and Horticultural Mineral Oil (HMO) on the Feeding Behaviour of Diaphorina citri Poerwanto, Mofit Eko; Danar, Wicaksono; Ajri, Miftahul; Ulilalbab, Azizah Ridha
HAYATI Journal of Biosciences Vol. 33 No. 2 (2026): March 2026
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.33.2.455-465

Abstract

Repellency is one of strategies to reduce Diaphorina citri attack. Guava leaf extract (GLE) and horticultural mineral oil (HMO) are well-known as repellents against D. citri but have short persistence. This research was conducted to increase the persistence of GLE and HMO extracts by using simultaneous co-delivery as part of environmentally friendly control of D. citri. The treatments used were 5% GLE, 5% HMO, 5% GLE + 5% HMO, 5% encapsulated GLE, 5% encapsulated HMO, 5% encapsulated GLE + 5% encapsulated HMO, and aquadest as control. The result shows that 5% HMO, 5% GLE + 5% HMO, and 5% encapsulated GLE have a repellency effect on D. citri. In the non-encapsulated treatments, the percentage of D. citri stayed at treated citrus leaves increased significantly at 9 and 12 hours after application except 5% GLE + 5% HMO. Exposure to 5% GLE, 5% HMO, and 5% encapsulated GLE. The most dominant of GLE compounds was lactose and d-Glycero-l-gluco-heptose. The most dominant of HMO compounds were 17-Pentatriacontene, Tetrapentacontane 1,54-dibromo- and tert-Hexadecanethiol. Encapsulation of 5% GLE can increase the persistence of GLE as a repellent compound for D. citri, but this effect does not occur in HMOs.
Co-Authors Ajri, Miftahul Bambang Supriyanta, Bambang Danar Wicaksono, Danar Danar, Wicaksono Hardiastuti, Siwi Hasanah, Khuswatun Kawuryan, Siwi Hardiastuti Endang Lakatos, László Puspitasari, Dena Aisyah Rukmowati Brotodjojo*, Rukmowati Solichah, Chimayatus Sumarwoto Sumarwoto Ulilalbab, Azizah Ridha