Maika Filiana, . (2026) EFFECT OF KAOLIN APPLICATION TIME INTERVALS ON HOST-FINDING BEHAVIOR AND OVIPOSITION OF Diaphorina Citri. Skripsi thesis, Universitas Pmenbangunan Nasional Yogyakrta.
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Abstract
ABSTRACT
Diaphorina citri, as the main vector of Huanglongbing (HLB), can be controlled using kaolin as a particle film that disrupts insect behavior. This study aimed to determine the effect of kaolin application intervals on the biological responses of D. citri, including host-finding behavior and oviposition, as well as their effects on citrus shoot growth. The study was arranged in a Completely Randomized Design (CRD) consisting of non-choice tests, choice tests, and observations of shoot growth. In the non-choice test, citrus plants were treated with kaolin application intervals of 5, 10, and 15 days. The responses of D. citri were evaluated based on the number of individuals on leaves and shoots, the number of eggs, the number of nymphs, and changes in the presence of D. citri during the observation period. The choice test was conducted to determine D. citri preference for treated plants through observations at 20, 40, and 60 minutes, with six replications, using parameters of the number of psyllids moving toward treated and untreated leaves and the number of immobile psyllids. The effect of kaolin application on citrus plant growth was observed through shoot length, number of leaves, and leaf length, with data analyzed using ANOVA and DMRT at the 5% significance level. The results showed that kaolin application intervals significantly affected the biological responses of Diaphorina citri. Kaolin application every 5 days significantly reduced the number of D. citri on leaves and shoots, as well as the number of eggs and nymphs, making it the most effective interval in suppressing host-finding behavior and oviposition. Therefore, a 5-day kaolin application interval is the most effective for controlling D. citri, although its effects on citrus shoot growth should be considered, indicating the need to balance pest control effectiveness and plant growth.
Keywords: Diaphorina citri, kaolin, Huanglongbing, application interval, biological response, shoot growth.
| Item Type: | Tugas Akhir (Skripsi) |
|---|---|
| Additional Information: | Maika Filiana (134210078-Penulis) Dr. Ir. Mofit Eko Purwanto, M.P. (Pembimbing) Dr. Ir. Abdul Rizal Az., M.P. (Penguji) Dr. Ir. Rr. Rukmowati Br., M. Agr. (Penguji) |
| Uncontrolled Keywords: | Keywords: Diaphorina citri, kaolin, Huanglongbing, application interval, biological response, shoot growth. |
| Subjek: | S Agriculture > S Agriculture (General) S Agriculture > SB Plant culture S Agriculture > SF Animal culture |
| Divisions: | Fakultas Pertanian > (S1) Agroteknologi |
| Depositing User: | Indah Lestari |
| Date Deposited: | 30 Jan 2026 03:48 |
| Last Modified: | 30 Jan 2026 03:48 |
| URI: | http://eprints.upnyk.ac.id/id/eprint/46917 |
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