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All Journal JPT : JURNAL PROTEKSI TANAMAN (JOURNAL OF PLANT PROTECTION) Warta Pengabdian Andalas: Jurnal Ilmiah Pengembangan Dan Penerapan Ipteks
Tre Julia Nasral
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Agriculture, Biological Sciences & Forestry Computer Science & IT Environmental Science Medicine & Pharmacology Social Sciences Other

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Melatih Anggota Keltan Rambutan dan Keltan Sakato Kota Padang untuk Mengendalikan Wereng Batang Coklat (WBC) dengan Joint Predator Sandra Desiska; My Syahrawati; Arneti Arneti; Zurai Resti; Martinius Martinius; Haliatur Rahma; Eri Sulyanti; Tre Julia Nasral; Ryan Hidayat
Warta Pengabdian Andalas Vol 26 No 4.a (2019)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat (LPPM) Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jwa.26.4.a.222-228.2019

Abstract

The attacks of brown planthopper or BPH (Nilaparvata lugens) in West Sumatra have been recorded since 2012 and continued to increase throughout 2015-2017. Wolf spider (Pardosa pseudoannulata) and lady beetle (Verania lineata) are two predators that can be used as natural enemies. Some research reports that the wolf spider can consume the BPH as much as 5-15 individuals while lady beetles consume as much as 1-11 individuals per day. Training on the use of two predators was carried out in farmer group of Rambutan, Kelurahan Bungus Barat and farmer group of Sakato Kelurahan Lambung Bukit, Padang City. The training aimed to show to farmers the predation rate of both predators against ten individuals of BPH provided. The treatment consisted of the predation rate of both predators (1 individual of wolf spider, 1 individual of lady beetle, 1: 3 composition of the joint predator) in 3 replications. All wolf spiders, lady beetles and BPH used were collected from rice field in Pauh District, Padang City. Within one hour, joint predators in Rambutan were able to consume 53% of the BPH provided, while joint predators in Sakato were able to consume 43%. Some efforts from farmers are needed to protect and conserve the presence of two predators so that they can act as natural enemies in the field.
Daya Predasi dan Tanggap Fungsional Kumbang Unta (Ophionea nigrofasciata) pada Beberapa Kepadatan Wereng Batang Coklat (Nilaparvata lugens) Tre Julia Nasral; My Syahrawati; Yenny Liswarni
Jurnal Proteksi Tanaman Vol 4 No 1 (2020): June 2020
Publisher : Plant Protection Departement, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (372.173 KB) | DOI: 10.25077/jpt.4.1.11-20.2020

Abstract

Camel groundbeetle (Ophionea nigrofasciata Schmidt-Goble 1846) or CGB is reported as one of predators of brown planthopper (Nilaparvata lugens Stal 1854) or BPH. The difference in BPH densities is assumed to affect the predation rate of the CGB. This study aimed to determine the predation rate of CGB on BPH at different densities. This experiment used a completely randomized design (CRD) consisting of six treatments and five replications. The treatment consisted of predation of one CGB at several BPH densities (5, 10, 20, 30, 40, and 50 individuals). BPH used was second-third instar of nymphs, and the CGB used was female. The results showed that the predation rate of CGB increased with increasing BPH density with functional response types classified as type I (Linear). The highest predation occurred at 50 density (23.6 individuals or 47.2% of BPH provided). The difference in density of BPH did not affect the bodyweight gain of CGB and tended to decrease due to different prey-seeking behavior. Keywords: Nillaparvata lugens, Ophionea nigrofasciata, predation, predator
Co-Authors Arneti Arneti Eri Sulyanti Haliatur Rahma, Haliatur Martinius Martinius MY SYAHRAWATI Ryan Hidayat Sandra Desiska Yenny Liswarni Zurai Resti