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All Journal Jurnal Fitopatologi Indonesia JURNAL ILMU PERTANIAN Journal of Applied Agricultural Science and Technology JPT : JURNAL PROTEKSI TANAMAN (JOURNAL OF PLANT PROTECTION) Jurnal Hilirisasi IPTEKS (JHI) Jurnal Research Ilmu Pertanian
Liswarni, Yenny
Departemen Proteksi Tanaman, Fakultas Pertanian, Universitas Andalas
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Dentistry Engineering Environmental Science Health Professions Medicine & Pharmacology Public Health Veterinary Other

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PEMANFAATAN AGEN HAYATI UNTUK PENGELOLAAN OPT CABAI PADA KELOMPOK TANI SIMABUR SUKSES MAKMUR DI KECAMATAN PARIANGAN KABUPATEN TANAH DATAR Trizelia Trizelia; Nurbailis Nurbailis; Yulmira Yanti; Winarto Winarto; Haliatur Rahma; Martinius Martinius; Yenny Liswarni; Rusdi Rusli; Yunisman Yunisman; Darnetty Darnetty; Eri Sulyanti
Jurnal Hilirisasi IPTEKS Vol 2 No 3.b (2019)
Publisher : LPPM Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (940.813 KB) | DOI: 10.25077/jhi.v2i3.b.331

Abstract

Cabai merah merupakan sumber pendapatan utama bagi petani di daerah Tanah Datar. Masalah utama yang selalu dihadapi oleh petani cabai di daerah ini adalah serangan hama dan penyakit yang dapat menyebabkan kehilangan hasil yang cukup tinggi. Hingga saat ini, pengendalian hama dan penyakit sayuran masih mengandalkan pestisida sintetik yang telah menimbulkan dampak negatif. Untuk itu, perlu dicari alternatif pengendalian yang dapat mengurangi dampak negatif pestisida tersebut, yaitu menggunakan agens hayati seperti cendawan Beauveria bassiana dan Trichoderma sp.Tujuan dari kegiatan pengabdian kepada masyarakat ini adalah untuk memperkenalkan dan memasyarakatkan pengendalian hama dan penyakit menggunakan agens hayati Beauveria bassiana dan Trichoderma sp. Metode kegiatan pengabdian adalah penyuluhan, pelatihan dan praktek lapangan. Minat petani untuk menggunakan agens hayati terutama Beauveria bassiana dan Trichoderma cukup tinggi dan telah memotivasi mereka untuk mengurangi penggunaan pestisida sintetis. Petani juga telah berhasil memperbanyak agens hayati dan membuat kompos limbah pertanian menggunakan Trichoderma.
Endophytic Bacterial Consortia as Biological Control of Bacterial Leaf Blight and Plant Growth Promoter of Rice (Oryza sativa L.) Zurai Resti; Yenny Liswarni; Martinius Martinius
Jurnal Ilmu dan Teknologi Terapan Pertanian Vol 4 No 2 (2020): August 2020
Publisher : Politeknik Pertanian Negeri Payakumbuh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32530/jaast.v4i2.146

Abstract

The consortia of endophytic bacteria with various mechanisms (competition, antibiotics, induction of resistance, and others), simultaneously, are more effective in controlling pathogens and increasing plant growth. The purpose of this study was to obtain endophytic bacterial consortia capable of suppressing of bacterial leaf blight and promoting the growth of rice plants. The study consisted of three experimental stages. The first stage was the test on the antibiosis ability of the endophytic bacterial consortia to suppress of pathogenic bacteria Xanthomonas oryzae pv. oryzae (Xoo) using the Kirby Bauer method. The second stage was the test on the ability of endophytic bacterial consortia to promote the growth of rice seedlings. The experiment was arranged in a Completely Randomized Design (CRD) which consisted of six combinations of endophytic bacterial consortia and 15 replications within each combination. The endophytic bacterial consortia were introduced by soaking the seeds, and the observations were made on the plant height, number of leaves, root length, fresh weight, and dry weight of rice seedlings. Meanwhile, the third stage was the test on the ability of endophytic bacterial consortia to suppress of bacterial leaf blight (BLB) diseases and to promote the rice plant growth. The experiment was arranged in a Completely Randomized Design (CRD) with six combinations of endophytic bacterial consortia and five replications within each combination. The endophytic bacterial consortia were introduced by soaking the roots of the seedlings. The observations were made on the incidence of disease, disease severity, number of leaves, plant height, and number of tillers. The results showed that all endophytic bacterial consortia had antibiosis abilities. The best endophytic bacterial consortia for controlling bacterial leaf blight and promoting the growth of rice seedlings and plants were the C (Bacillus sp SJI; Bacillus sp HI) and D (Bacillus sp SJI; S.marcescens isolate JB1E3) consortia.
KETEPATAN WAKTU APLIKASI Paecilomyces lilacinus DALAM MENGENDALIKAN NEMATODA BENGKAK AKAR (Meloidogyne spp.) PADA TANAMAN TOMAT Winarto Winarto; Darnetty Darnetty; 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 (363.097 KB) | DOI: 10.25077/jpt.4.1.38-44.2020

Abstract

Root-knot nematodes (Meloidogyne spp.) have been reported to be one of the primary pathogens that decreased tomato production in Indonesia. Biological control of root-knot nematodes by using parasitic fungus as like as Paecilomyces lilacinus is still limited. An effective application of parasitic fungi could be successful by managing a suitability application time. The study aimed to determine the suitability of the application time of the P.lilacinus in controlling root-knot nematodes on tomato. The study was conducted in farmers' land that was infected by root-knot nematodes. The experiment was done in a randomized block design with applying P.lilacinus isolates on 12, 8, and 4 days before planting, planting time, and 4, 8, 12 days after planting. All treatments were repeated four times. The application of P. lilacinus onto tomato root at planting time was better at suppressing the development of root-knot nematode compared to applications made before or after planting. P. lilacinus was able to suppress the number of root-knot (66.08%), the number of egg groups (77.33%), the number of eggs (26.79%), and the number of nematodes in the soil (82.20%). Keywords: Application time, Meloidogyne spp., Paecilomyces lilacinus, tomato
Efektivitas Ekstrak Daun Pepaya secara Invitro terhadap Colletotrichum gloeosporioides Penyebab Penyakit Antraknosa pada Tanaman Cabai Arneti arneti; Yenny Liswarni; Rifa Edriwilya
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 (401.844 KB) | DOI: 10.25077/jpt.4.1.1-10.2020

Abstract

Papaya leaf (Carica papaya Linnaeus) is one of the sources of botanical fungicides that is known to have an ability in inhibiting Colletotrichum gloeosporioides growth. The aim of the study was to determine the effectiveness of papaya leaves extract to suppress of C. gloeosporioides growth that caused anthracnose disease of red pepper (Capsicum annuum Linnaeus) in vitro assay. The study was done in a Completely Randomized Design (CRD) with five concentration levels of papaya leaves extract and control (1%, 2%, 3%, 4%, 5%, and control). The parameters were colony growth, colony area, wet weight, dry weight, and conidia number (per ml of suspension). The data obtained were analyzed by ANOVA and LSD tests at 5% significance level. The results showed that the application of papaya leaves extract with different concentrations could suppress the growth of C. gloeosporioides, the pathogen of anthracnose disease in chili. The higher the concentration of papaya leaves extract given, the higher its effectiveness in suppressing the growth of C. gloeosporioides. Application at the 5% concentration was the most effective inhibiting the conidia formation (82.5%), followed by inhibiting the expansion of the colony (64.04%), reducing wet weight (45.16%) and dry weight (54.16%). Keywords: Anthracnose, botanical fungicides, Capsicum annuum, concentration, growth inhibitor
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
Antagonism of Endophytic Bacteria and the Consortium Against Culvularia oryzae Bugnic Zurai Resti; Martinius Martinius; Yenny Liswarni
Jurnal Proteksi Tanaman Vol 6 No 1 (2022): June 2022
Publisher : Plant Protection Departement, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.6.1.34-42.2022

Abstract

Endophytic bacteria have several advantages, including controlling plant pathogens and increasing plant growth. As a biological control, endophytic bacteria can suppress the development of plant pathogenic fungi. This study aimed to obtain endophytic bacteria and the consortium of endophytic bacteria that can inhibit the growth of C. oryzae. The study used a Completely Randomized Design (CRD) for studying the ability of endophytic bacteria using eight isolates: Bacillus sp HI, Bacillus sp SJI, B. cereus P14, B. cereus Se07, Serratia marcescens strain JB1E2, S. marces-cens strain JB3, S. marcescens strain ULG1E2 and S. marcescens strain ULG1E4, with three replications. For Studying the ability of endophytic bacteria consortium using six endophytic bacteria consortia and control with three replications. Observations were made on the inhibition growth of C. oryzae. The results showed that all endophytic bacteria and the endophytic bacteria consortium could inhibit C. oryzae, with inhibition of 58.50% – 75.00% and 38.00% – 77.00%. Endophytic bacteria which can significantly suppress the growth of C. oryzae were B. cereus Se07, Bacillus sp HI and Bacillus sp SJI with inhibition of 75.00%, 70.50%, and 70.00%. The endophytic bacteria consortium that had a high ability to suppress the growth of C. oryzae was the consortium of B (S. marcescens strain ULG1E4, S. marcescens strain JB1E3), D (Bacillus sp SJI, Bacillus sp HI, S. marcescenns JB1E3), and G (Bacillus sp SJI, S. marcescens strain ULG1E4), with inhibition of 77.00%, 72.33%, and 71.33%, respectively.
The First Occurrence of Zucchini yellow mosaic virus Infecting Cucumber in Padang, West Sumatra Ridho, Muhammad Arif; Martinius; Fadli; Liswarni, Yenny; Najmi, Lailatul; Trisno, Jumsu
Jurnal Fitopatologi Indonesia Vol 19 No 5 (2023): September 2023
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14692/jfi.19.5.183-187

Abstract

Tanaman mentimun varietas lokal Padang merupakan tanaman sayuran unggulan bagi petani perkotaan karena umur panen yang pendek. Hasil survei menemukan adanya gejala bercak kuning dan klorosis dengan tulang daun hijau. Gejala ini mirip dengan infeksi Papaya ring spot virus (PRSV) yang menginfeksi mentimun di Jawa dan Zucchini yellow mosaic virus (ZYMV) yang menginfeksi mentimun pada umumnya. Deteksi virus dilakukan dengan teknik reverse transcription polymerase chain reaction (RT-PCR) menggunakan primer spesifik PRSV dan primer universal Potyvirus, perunutan dan analisis DNA. RT-PCR menggunakan primer spesifik PRSV DNA target tidak menghasilkan pita DNA, namun pita DNA dengan ukuran ±320 pb berhasil teramplifikasi dengan primer universal Potyvirus. Analisis sikuen nukleotida menunjukkan bahwa similaritas virus tertinggi sebesar 93.8% dan 93.5%, berturut-turut dengan ZYMV isolat Singapura dan India. Infeksi ZYMV merupakan kejadian pertama pada tanaman mentimun di Padang, Sumatera Barat.
Uji Konsentrasi Ekstrak Air Daun Lantana camara Linnaeus terhadap Mortalitas dan Perkembangan Spodoptera exigua Hubner (Lepidoptera: Noctuidae): english Liswarni, yenny; Sari, Nicha Puspita; Hamid, Hasmiandy
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 2 No. 1 (2018): June 2018
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.2.1.28-36.2018

Abstract

Spodoptera exigua Hubner is one of the major pests which attack onion crop. Botanical pesticides can be used as an alternative that is cheap, easy and environmentally friendly in controlling these pests. Lantana camara Linn is a plant that has the potential as a botanical pesticide. This study aimed at obtaining the best concentration of water extract of leaves of L. camara which was active on mortality, reduced feeding activity and development of S. exigua in the laboratory. The experiment was conducted using a Completely Randomized Design (CRD), with 6 treatments and 5 replications. The concentration was used a 0%, 2%, 4%, 6%, 8% and 10%. The treatment was done by the application through the larval feed. Parameters observed were larval mortality, reduced feeding activity, duration of larval development, the percentage of pupal, weight of pupal and percentage of adult formed. The results showed that the concentration of water extract of leaves of L. camara as insecticide with LC50 value was 5.02%. Water extract of leaves of L. camara also decreased feeding activity, inhibit development of larval, pupal and adult formed.
Aktifitas Ekstrak Metanol Kulit Buah Manggis (Garcinia mangostana L) terhadap Crocidolomia pavonana Fabricius (Lepidoptera: Crambidae): English Arneti, Arneti; Liswarni, Yenny; Sinaga, Ismi Fadhilah
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 2 No. 1 (2018): June 2018
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.2.1.37-43.2018

Abstract

Crocidolomia pavonana is an important pest of Brassicaceous which can be controlled by botanical insecticide. The objective of this study was to determine activity of the mangosteen peel fruit (G. mangostana) methanol extract on mortality and development of C. pavonana. The research was conducted at laboratory. The design used was a completely randomized design with four level of methanol extract of the mangosteen peel fruit on larva of 2nd instar. The extract was tested to larvae by a leaf-residue feeding method without selection. The parameters were mortality, antifeedant activity, developmental time, and numbers of pupae C. pavonana formed. The results showed that methanol extract of the mangosteen peel fruit was less effective in controlling C.pavonana. The highest concentration of extract (0.5%) caused mortality 72%, antifeedant activity 55,70%, extended larval developmental time and inhibited numbers of pupae formed of 30,66%.
Aktivitas Antagonistik Jamur yang Berasosiasi dengan Nematoda Bengkak Akar (Meloidogyne spp.) pada Rizosfer Tanaman Tomat: English Winarto, Winarto; Trizelia, Trizelia; Liswarni, Yenny
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 2 No. 2 (2018): December 2018
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.2.2.78-86.2018

Abstract

The purpose of experiment were to know antagonistic activity of fungi to root-knot nematode (Meloidogyne spp.) in rhizosphere of tomato. The experiment consisted of isolation, test of antagonistic activity and identification of fungi that carried out at Phytopathology Laboratory of Universitas Andalas. Soil samples were taken from rhizosphere of healthy tomato in Alahan Panjang, Solok, and Agam. The results indicated that there were seven antagonistic fungi to Meloidogyne spp., namely: Paecilomyces sp., Penicillium, sp., Aspergillus sp., Fusarium sp., Gliocladium sp. Trichoderma sp., and Chaetomium sp.
Co-Authors Ananda, Hal Adi Fikri Arneti Arneti Darnetty Darnetty Darnetty, Darnetty Edriwilya, Rifa Eri Sulyanti Fadli Haliatur Rahma, Haliatur Hasmiandy Hamid Hidayatullah, Annisa Ismi Fadhilah Sinaga Jumsu Trisno Lailatul Najmi Martinius Martinius Martinius Martinius Martinius Martinius Martinius Martinius Martinius MY SYAHRAWATI Nasral, Tre Julia Natasya, Resva Lira Nicha Puspita Sari Nurbailis Ridho, Muhammad Arif Rifa Edriwilya Rusdi Rusli Sari, Nicha Puspita Sinaga, Ismi Fadhilah SYAHRAWATI, MY Tama, Duma Putri Tre Julia Nasral Trizelia . Winarto Winarto Winarto Winarto Yulmira Yanti Yunisman Yunisman Zurai Resti