APPLICATION INTERVAL OF HORTICULTURAL MINERAL OIL (HMO) AND KAOLIN ON Diaphorina citri FEEDING AND OVIPOSITION BEHAVIOR

Navita, Gabriel Stella (2024) APPLICATION INTERVAL OF HORTICULTURAL MINERAL OIL (HMO) AND KAOLIN ON Diaphorina citri FEEDING AND OVIPOSITION BEHAVIOR. Other thesis, UPN Veteran Yogyakarta.

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Abstract

Citrus Vein Phloem Degeneration (CVPD) disease in Indonesia is currently considered the main disease of citrus plants that is caused by Candidatus Liberibacter spp. One control that is being intensively carried out is controlling insects that are vectors of CVPD disease, namely Diaphorina citri. Horticultural Mineral Oil (HMO) and kaolin can be used to coat citrus leaves and suppress volatile compounds so that D. citri has difficulty finding its host. This research aims to determine application interval of horticultural mineral oil and kaolin on feeding and oviposition behavior of Diaphorina citri. The research method used non-choice and choice test with completely randomized block design (CRBD) for 2% concentration of HMO and kaolin. Application intervals that carried out were applied once every 5 days, once every 10 days and once every 15 days. Application is done by spraying all parts of the plant according to the treatment. Observations were made every two days for 30 days. The data obtained were analyzed using general multivariate analysis and 5% DMRT test. The application interval treatment that can suppress feeding and oviposition activity is once every 5 days with HMO material. 2% HMO treatment once every 5 days can inhibit the development of psyllids eggs. Egg parameters in the 2% HMO once every 5 days treatment showed that there were psyllids that laid eggs on the shoots, but no eggs developed into nymphs. This result is because the HMO material can coat the surface of the leaves and shoots well and thoroughly. HMO particles can inhibit the release of volatile compounds which are used by psyllids to find their hosts. However, this HMO coating interferes with shoot growth when applied once every 5 days because the photosynthesis process of the shoots is disrupted due to this coating.

Item Type:	Thesis (Other)
Additional Information:	Gabriel Stella Navita (134200226) ; Pembimbing : Mofit Eko Poerwanto
Uncontrolled Keywords:	citrus vein phloem degeneration, Diaphorina citri, horticultural mineral oil, kaolin, feeding behavior, oviposition behaviour
Subjects:	S Agriculture > S Agriculture (General) T Technology > T Technology (General)
Divisions:	Faculty of Medicine, Health and Life Sciences > School of Biological Sciences
Depositing User:	Bayu Setya Pambudi
Date Deposited:	17 Jan 2025 02:14
Last Modified:	17 Jan 2025 02:14
URI:	http://eprints.upnyk.ac.id/id/eprint/42076

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