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Nurbailis
Andalas University, Padang
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Exploration of Fungi Associated with Branch Dieback Disease on Cocoa in Padang City Nurbailis, Nurbailis; Yulisyah, Rummah; Nelly, Novri
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 5 No. 1 (2021): June 2021
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.5.1.1-11.2021

Abstract

Branch dieback is one of the primary diseases in cacao plants. The disease affects young shoots and twigs, causes leaves to die, and leaves them bare, interfering with photosynthesis. This study aimed to determine the causative pathogens in Padang City. The locations were: Sungai Sarik Kuranji, Lubuk Minturun Koto Tangah, and Teluk Kabung Bungus. The locations have the following criteria: age ? three years, the number of plants at the location ? 50 individuals, and found symptoms of branch dieback. The research used descriptive methods. The sample represented 10% of the total number of plants at the location, was collected randomly. The results found four species of fungi associated with the disease, namely Oncobasidium theobromae, Botrydiplodia theobromae, Fusarium decemcellulare, and Fusarium sp1.
Aplikasi Rizobakteri untuk Pengelolaan Spodoptera exigua Hübner pada Tanaman Bawang Merah (Allium cepa Linnaeus) di Lapangan Hidrayani, Hidrayani; Nurbailis, Nurbailis; Yeni, Fitri; Ikhsan, Zahlul
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 8 No. 1 (2024): June 2024
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.8.1.12-20.2024

Abstract

Spodoptera exigua is the primary pest attacking shallot plants from the vegetative to the generative phase. Yield loss caused by S. exigua attack can reach 57%. Rhizobacteria have been known to be used as biocontrol agents for controlling insect pests. The research objectives were to determine and compare the effectiveness of Yuyaos and BPTPH rhizobacteria formula (Bacillus sp.) in suppressing the attack of S. exigua on shallot-growing areas. The study used a completely randomized design (CRD) of 3 treatments and five replications. The treatment consisted of shallot seedlings treated with two types of rhizobacteria (Yuyaos and BPTPH) and water (without rhizobacteria) as control before planting. Beneficial effects of the rhizobacteria on shallot plants were observed in the following variables, including the development of the S. exigua population, damage level of S. exigua, and shallot growth. The results showed that introducing Yuyaos rhizobacteria (RZ2.1AG1, Bacillus thuringiensis), which originated from the rhizosphere of the chili plant, was the best way to protect shallot plants from S.exigua. Effectively reduced the population of S.exigua (78.90%), leaf damage (62.12%), and damage intensity (38.88%). On the other hand, Yuyaos was also influential in increasing tuber growth (11.11%), plant height (43.29%), number of leaves (58.33%), and number of tillers (22.22%).
Co-Authors . Martinius Afriani Panko ALBANA, HASAN Alfasiri, Ayubi Annisa, Tifla Fitri Annisya Diadinni Cherly Yugu Tanca Darnetty Darnetty Darnetty, Darnetty Dina Ernawati Eri Sulyanti Fitri Yeni, Fitri Haliatur Rahma, Haliatur Hasmiandy Hamid Hermeria, Noveriza Hidrayani Hidrayani Indra Dwipa Jamaan, Akmal Liswarni, Yenny Magdalena Saragih Magdalena Saragih Saragih Martinius . Martinius ., Martinius Martinius Martinius Martinius Martinius Megha Putri Tanjung Muzilatul Nilisma MY SYAHRAWATI Naipinta, Rizka Noveriza Hermeria NOVRI NELLY Rahayu, Silva Dika Reflin Reflin Rifai, Imam Rummah Yulisyah Rusdi Rusli Saragih, Magdalena Tanca, Cherly Yugu Tanjung, Megha Putri Trimuti Habazar Trizelia . Verry Azniza Winarto Winarto Winarto Winarto Yaherwandi Yenny Liswarni Yulisyah, Rummah Yulmira Yanti YUNISMAN . Yunisman Yunisman Yusniwati Yusniwati Zahlul Ikhsan