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Distribution and Attack Rate of Spodoptera frugiperda on Maize in Sijunjung District, West Sumatera Province Syafria Syafria; Reflinaldon Reflinaldon; Novri Nelly
Jurnal Proteksi Tanaman Vol 7 No 1 (2023): June 2023
Publisher : Plant Protection Departement, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.7.1.44-54.2023

Abstract

The density and attack rates of Spodoptera frugiperda have been reported in various maize cultivation in Indonesia, but there has never been a report in Sijunjung District, West Sumatra. The research was conducted to study the attack level, density, and distribution of S. frugiperda in Sijunjung District. The study was carried out in March -May 2023 using a survey method in 8 sub-districts in Sijunjung District. The results showed that S. frugiperda had spread and attacked maize crops evenly in Sijunjung District, but the attack rate (26.96%) and density (0.24 individuals) were low. The highest attack was found in Nagari Guguak (88.7%). The high or low rate of attacks is influenced by differences in varieties, planting ages, and maize cultivation techniques. Meanwhile, the density is more influenced by age differences.
Whitefly, Bemisia tabaci Genn. (Hemiptera: Aleyrodidae) Control using a Solid Formulation of Selected Endophytic Bacteria, Bacillus pseudomycoides Strain SLBE 1.1SN Reflinaldon Reflinaldon; Trimurti Habazar; Yulmira Yanti; Hasmiandy Hamid; Miranti Miranti
AGRIVITA Journal of Agricultural Science Vol 45, No 3 (2023)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v45i3.4033

Abstract

Bemisia tabaci is a major pest in chili as it can act as a vector for transmitting the yellow curl virus. Endophytic bacteria have been reported to trigger plant defense against whiteflies. This study aimed to obtain a solid formula for the endophytic bacteria B. pseudomycoides strain SLBE1.1SN and a storage duration that effectively controls whitefly. This experimental study used a completely randomized design (CRD) consisting of 26 treatments and repeated three times. The treatments combined different types of endophytic bacterial carrier formulas and storage duration, synthetic insecticide treatment (Imidacloprid), and control. The treatments were applied to chili seeds and seedlings. The results showed that not all stored endophytic bacterial formulation could suppress the whitefly population on chili plants. The formula B. pseudomycoides strain SLBE1.1SN with rice straw as carrier material at six weeks storage was the best formula for controlling whitefly. This suggests that the formulation of stored endophytic bacteria not only reduced the number of eggs laid, but also suppressed the development of nymphs and imago.
PAMERAN DISEMINASI HASIL RISET PADA PEKAN NASIONAL PETANI DAN NELAYAN (PENAS) XVI DI KOTA PADANG, SUMATERA BARAT Ryan Budi Setiawan; Indra Dwipa; Yaherwandi Yaherwandi; Reflinaldon Reflinaldon; Afrima Sari; Doni Hariandi; Juniarti Juniarti; Meisilva Erona S; Dede Suhendra; Awang Al Hamdi; Agil Syah Putra; Shinta Mulyana; Siti Rahmah; Nadila Aulia Ardi; Aries Novita Putri; Nandita Samaralya Tori
Community Development Journal : Jurnal Pengabdian Masyarakat Vol. 4 No. 3 (2023): Volume 4 Nomor 3 Tahun 2023
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/cdj.v4i3.18422

Abstract

Hasil temuan suatu penelitian harus diketahui oleh masyarakat, baik secara spesifik dalam kelompok tertentu maupun kepada kalangan umum untuk menghasilkan dampak terhadap pembangunan. Diseminasi hasil riset dapat dilakukan melalui pameran pada kegiatan Pekan Nasional (PENAS) Petani Nelayan XVI. PENAS menjadi wadah tukar menukar informasi, pengalaman serta pengembangan kemitraan dan jejaring kerjasama antara para petani nelayan dan petani hutan, peneliti, penyuluh, pihak swasta dan pemerintah sehingga dapat membangkitkan semangat, tanggung jawab serta kemandirian sebagai pelaku utama pembangunan pertanian, perikanan dan kehutanan. Kegiatan PENAS dilaksanakan pada tanggal 10-15 Juni 2023 di Kota Padang, Sumatera Barat. Metode yang digunakan adalah pameran hasil penelitian, sosialisasi ketahanan pangan dan urban farming, diskusi dengan pengujung, pembagian benih dan leaflet gratis, serta pemasaran produk UKM hasil binaan dosen. Kegiatan pameran dan diseminasi hasil riset serta kerjasama pada PENAS ke XVI mendapat sambutan baik dan antusias yang tinggi oleh masyarakat dan peserta PENAS. Pengunjung mengetahui tentang hasil riset yang telah dilaksanakan oleh dosen, mendapatkan informasi tentang tanaman dan pertanian, memperoleh benih yang nanti akan ditanam untuk memenuhi kebutuhan rumah tangga.
Effectiveness of Dose and Application Interval of Ocimum sanctum Essential Oil as Bactrocera spp. Attractant on Siamese Orange Plants Amri, Lutfir Rahman; Arneti, Arneti; Reflinaldon, Reflinaldon; Syahrawati, My
Jurnal Proteksi Tanaman Vol 8 No 2 (2024): December 2024
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.8.2.88-98.2024

Abstract

Fruit flies (Bactrocera spp.) are the most detrimental pests on siamese orange fruit (Citrus nobilis Linnaeus). One technique to control fruit flies that are safe for the environment and do not cause residues on plants is the use of attractants. The research aimed to study the effect of dose and application interval of basil essential oil for fruit fly control on Siamese orange plants. This research was conducted in citrus plantations of Gunung Omeh District, Lima Puluh Kota Regency, West Sumatra, Indonesia, and Insect Bioecology Laboratory, Faculty of Agriculture, Universitas Andalas. The study used a separate plot design consisting of doses of basil essential oil as the main plot and application intervals as subplots. The observed variables were species and the population of fruit flies. The results of observations found Three species of fruit flies, namely Bactrocera dorsalis, Bactrocera carambolae, and Bactrocera umbrosa, were successfully trapped during the observation with the highest number of catches of 278.33 individuals/trap, 15.33 individuals/trap, and 2.67 individuals/trap, respectively. Basil essential oil with a dose of 1.5 ml and an application interval of 3 days proved to be the most effective combination in trapping fruit flies compared to other doses and intervals. These results indicate that basil essential oil can be a potential alternative attractant in managing fruit fly populations on Siamese orange plants
TANTANGAN PENGEMBANGAN PADI DIKABUPATEN KEPULAUAN MENTAWAI Azhari, Rafnel; Rusman, Bujang; Kasim, Musliar; Syarif, Auzar; Reflinaldon, Reflinaldon; Yasin, Syafrimen; Zainal, Afrizal; Junaidi, Junaidi
Jurnal AGRISEP JURNAL AGRISEP VOL 16 NO 01 2017 (MARCH)
Publisher : Badan Penerbitan Fakultas Pertanian, Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (276.757 KB) | DOI: 10.31186/jagrisep.16.1.41-56

Abstract

This study aims to identify the problems and develop rice agribusiness in Mentawai Islands from upstream to downstream and formulate appropriate policy recommendations to be implemented. The research location determined by purposive namely in the village Makalo and Malakopa District of South Pagai, Sikakap subdistrict Taikako Village, Village Saumanganya District of North Pagai, Bosua Village and Village Beriulou District of South Sipora, Village Rogdog and Madobag District of South Siberut. Respondents in this study were 30 farmers. Respondents farmers selected by simple random sampling method. The results showed that the majority of rice paddies new openings in six districts consist of peatlands with a depth varying from 0.4- > 2.0 meter, fields new openings that have been implemented in the Mentawai Islands in general can not be expected to result in maximum productivity due to problems of land suitability diverse. Farmers also do not take action appropriate technical culture starting from land preparation, seed selection, weeding, fertilizing and water management. Behaviorally agriculture, farmers in Mentawai Islands is not a society that blends with the culture of rice fields, it is because basically their agricultural base is dry land agriculture with farming patterns. This will certainly give a great challenge and not easy for the cultivation of rice in the Mentawai Islands.
Bioactivity Test of Gambir (Uncaria gambir Roxb) Processing Waste as an Environmentally Friendly Alternative for Pest Control Using Nano Technology Hamid, Hasmiandy; Reflinaldon, Reflinaldon; Hidrayani, Hidrayani; Yunisman, Yunisman; Lina, Eka Candra
AGRIVITA Journal of Agricultural Science Vol 46, No 2 (2024)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v46i2.4397

Abstract

The gambir plant can serve as a raw material for botanical insecticides. Plant-based insecticides are made in nanoemulsion form to overcome the insecticide particle size problem. This study aims to obtain a gambir waste form that has the potential to be used as a botanical insecticide using nanotechnology. The laboratory experiments include preliminary and follow-up tests. The preliminary test involves testing each extract (liquid, solid, and raw gambir waste) at three concentrations using a completely randomized design with four replications. The follow-up test uses the residue method on leaves to test insecticidal activity. Creating nanoemulsion from gambir waste involves mixing organic and liquid phases through spontaneous emulsification. The insecticidal effectiveness of this nanoemulsion is tested on Croccidolomia pavonana. The results show that solid and liquid gambir waste has the potential to be used as alternative insecticides, which can influence the mortality of C. pavonana with an LC50 concentration of 0.22 (solid waste) and 0. 29 (liquid waste), while LC95 is 2.44 (solid waste) and 2.52 (liquid waste). The research promotes utilizing natural resources and innovative technologies, advancing environmentally conscious pest control methods, and fostering sustainable agricultural systems.
Patogenisitas Cendawan Entomopatogen dari Rizosfir Kacang Tanah (Arachis hypogaea Linnaeus) terhadap Hama Penggerek Polong Etiella zinckenella Treitschke (Lepidoptera: Pyralidae) Reflinaldon, Reflinaldon; Martinius, Martinius
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 1 No. 2 (2017): Desember 2017
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.1.2.79-87.2017

Abstract

The objective of this study was to get entomopathogenic fungi isolates of bean plant rhizosphere derived from Nagari Sawah Tangah, District Pariangan, Tanah Datar Regency and to determine their pathogenicity on pod borer E. zinckenella. Isolation method was performed by diluting the soil samples in a serial dilution into 10-3 and cultured in PDA media. Furthermore, the purification was based on the shape and color of the fungus colonies. A total of 16 isolates obtained at the initial stage were selected by testing them against the fifth instar larvae Tenebrio molitor. Results showed that only 4 isolates (STA 1, STA 2.2, STA 5, and STB 3.1) could be further tested against E. zinckenella pod borer using completely randomized design (CRD). The highest pathogenicity isolates was exhibited by STA 1 belonged to Metarhizium genera.
Pengaruh Waktu Aplikasi Paecilomyces spp. terhadap Penekanan Nematoda Bengkak Akar (Meloidogyne spp.) pada Tanaman Tomat (Lycopersicum esculentum Mill.) Winarto, Winarto; Reflinaldon, Reflinaldon
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 1 No. 2 (2017): Desember 2017
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.1.2.88-94.2017

Abstract

The application time of Paecilomyces spp. was assumed affecting its ability to suppress the root knot nematode (Meloidogyne spp.). This study aimed to get the effective application time to suppress Meloidogyne spp. The study was carried out at greenhouse and Biological Control Laboratory of Faculty of Agriculture, University of Andalas from March to June 2015. The research method used was compeletely random design (CRD) with 5 treatments and 4 replications. The application times consisted of 14 days before planting, 7 days before planting, at planting time, 7 days after planting, 14 days after planting and control. Application time of Paecilomyces spp. on 7 days before planting was the best time to reduce the number of root knot, the group of nematode eggs, nematode eggs and nematode larvae in the soil.
Accuracy and Prediction of Hopperburn by Brown Planthopper (Nilaparvata Lugens Stal) with Sentinel-2 Images Gunawan, Rahmad; Reflinaldon, Reflinaldon; Yaherwandi, Yaherwandi
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 5 No. 2 (2021): December 2021
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.5.2.107-117.2021

Abstract

Forecasting of brown planthopper attack or BPH (Nilaparvata lugens Stal) using artificial intelligence and vegetation index of Sentinel-2 Satellite Imagery improves forecasting the incidence of hopperburn. This study aimed to determine the accuracy and correlation of the random forest classification of Sentinel-2 imagery to the incidence of hopperburn reported by Plant Pest Organisms Observer (PPOO) and determine the best method for predicting it. The study was done through observation and secondary data processing about the age of the plant, the incidence of hopperburn by BPH, interviews with farmers, and PPOO. The results showed that the hopperburn NDVI index ranged from 0.23 - 3.8. The random forest classification accuracy was high (Kappa Index = 0.82). The relationship between the hopperburn area from the PPOO report and the predicted area from Sentinel-2 images classified as (R2 = 0.53, R = 0.728) with the equation Y = -1.5 + 0.82 X. The correlation can be improved using spatial regression Geographically Weighted Regression (GWR4) with the best gaussian distance of 1.76 km (R2 = 0.6, R = 0.77). The best prediction for the NDVI stage of hopperburn attack time series with random forest (RMSE = 0.12819) was better than the prediction of the hopperburn attack time series with the exponential smoothing method from the PPOO report (RMSE 3.302184).
Distribution and Attack Rate of Spodoptera frugiperda on Maize in Sijunjung District, West Sumatera Province: Distribusi dan Tingkat Serangan Spodoptera frugiperda pada Tanaman Jagung di Kabupaten Sijunjung, Sumatera Barat Syafria, Syafria; Reflinaldon, Reflinaldon; Nelly, Novri
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 7 No. 1 (2023): June 2023
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.7.1.44-54.2023

Abstract

The density and attack rates of Spodoptera frugiperda have been reported in various maize cultivation in Indonesia, but there has never been a report in Sijunjung District, West Sumatra. The research was conducted to study the attack level, density, and distribution of S. frugiperda in Sijunjung District. The study was carried out in March -May 2023 using a survey method in 8 sub-districts in Sijunjung District. The results showed that S. frugiperda had spread and attacked maize crops evenly in Sijunjung District, but the attack rate (26.96%) and density (0.24 individuals) were low. The highest attack was found in Nagari Guguak (88.7%). The high or low rate of attacks is influenced by differences in varieties, planting ages, and maize cultivation techniques. Meanwhile, the density is more influenced by age differences.