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All Journal International Journal of Biosciences and Biotechnology Proceedings of Annual International Conference Syiah Kuala University - Life Sciences & Engineering Chapter Proceeding International Conference on Global Resource Conservation Biology, Medicine, & Natural Product Chemistry BIOLINK (Jurnal Biologi Lingkungan, Industri, Kesehatan) Jurnal Penelitian Pendidikan IPA (JPPIPA) JMM (Jurnal Masyarakat Mandiri) Ganaya: Jurnal Ilmu Sosial dan Humaniora Martabe : Jurnal Pengabdian Kepada Masyarakat JURNAL AGRICA Jurnal Entomologi Indonesia Jurnal Agronomi Tanaman Tropika (JUATIKA) Jurnal Pembelajaran dan Biologi Nukleus Dinasti International Journal of Education Management and Social Science Community Development Journal: Jurnal Pengabdian Masyarakat AGRISAINS: Jurnal Ilmiah Magister Agribisnis GANDRUNG: Jurnal Pengabdian Kepada Masyarakat Pelita Masyarakat Jurnal Ilmiah Pertanian ( JIPERTA) Yayasan Cita Cendikiawan Al Khwarizmi Journal of Natural Sciences International Journal of Economic, Business, Accounting, Agriculture Management and Sharia Administration (IJEBAS) International Journal of Social Science, Educational, Economics, Agriculture Research, and Technology (IJSET) Mediagro Prioritas : Jurnal Pengabdian Kepada Masyarakat Jurnal Sapta Agrica Jurnal Multidisiplin West Science
Retna Astuti Kuswardani
Universitas Medan Area
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Jenis Ekstrak Tanaman sebagai Mollusida Nabati terhadap Hama Parmarion martensi pada Tanaman Kubis secara In Vitro Azwana, Azwana; Kuswardani, Retna Astuti; Sarumaha, Agustinus
Journal of Natural Sciences Vol 6, No 2 (2025): Journal of Natural Sciences Juli
Publisher : Mahesa Research Center

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34007/jonas.v6i2.680

Abstract

Parmarion martensi is a major pest of cabbage crops, causing damage that reduces both quality and market value. The use of botanical pesticides as an alternative control method has not been widely studied. This study aimed to evaluate the effectiveness of extracts from Aegle marmelos (maja fruit), Azadirachta indica (neem leaves), and Carica papaya (papaya leaves) in controlling P. martensi. The experiment was conducted using a Completely Randomized Design (CRD) with 11 treatments and 3 replications. Treatments included a negative control (A0), synthetic pesticide (A1), and plant extracts at concentrations of 20%, 25%, and 30% (A2–A10). The results showed that neem leaf extract at 30% (A7) produced the highest mortality rate, reaching 93.3% at 5 days after application (DAA), with an average feed consumption of 0.39 g/day. Probit analysis indicated an LC₅₀ of 20.3% and an LT₅₀ of 3.6 days, suggesting a strong toxic effect. These findings indicate that neem leaf extract at 30% concentration has potential as a botanical molluscicide to replace chemical pesticides.
Analisis Preferensi Konsumen Dalam Memilih Coffee Shop di Kota Padangsidmpuan Kuswardani, Retna Astuti; Hernosa, Siswa Panjang; Dalimunthe, Arpan
Jurnal Multidisiplin West Science Vol 4 No 08 (2025): Jurnal Multidisiplin West Science
Publisher : Westscience Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58812/jmws.v4i08.2526

Abstract

Industri coffe shop dianggap sangat menjanjikan berkat beberapa atribut unik yang dimilikinya saat ini.  Penelitian ini bertujuan untuk mengidentifikasi karakteristik responden coffe shop, kualitas dan tingkat coffe shop, serta hierarki atribut coffe shop di kota Padangsidimpuan.  Penelitian ini menggunakan data primer dan sekunder, dengan sampel sebanyak 100 pengunjung coffe shop. Teknik analitis yang digunakan adalah analisis konjungtif melalui perangkat lunak SPSS versi 26.0.  Hasil penelitian menunjukkan bahwa konsumen lebih mengutamakan kualitas seperti jarak yang dekat dengan tempat tinggal, harga antara Rp. 16.000 dan Rp. 25.000, serta suasana coffe shop di luar ruangan.  Kriteria yang paling signifikan adalah lokasi, harga, suasana, layanan, kualitas produk, dan fasilitas. Hal ini menunjukkan bahwa atribut yang dianggap paling signifikan oleh konsumen saat memilih coffe shop di Kota Padangsidimpuan adalah lokasi. Hasil uji Pearson’s R dan Kendall’s menunjukkan korelasi yang signifikan dalam preferensi konsumen saat memilih coffe shop di Kota Padangsidimpuan.
FEASIBILITY ANALYSIS OF CARP (Cyprinuscarpio) FARMING AND MARKETING IN SIMALUNGUN DISTRICT Zul Fadhly; Retna Astuti Kuswardani; Endang Sari Simanullang
International Journal of Social Science, Educational, Economics, Agriculture Research and Technology (IJSET) Vol. 3 No. 8 (2024): JULY
Publisher : RADJA PUBLIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54443/ijset.v3i8.509

Abstract

The aim of this research isto analyze the income of carp farmers(Cyprinus carpio)in Simalungun Regency, to analyze the feasibility of goldfish farming(Cyprinus carpio)Simalungun Regency,.The sampling technique in this research was carried out using provocative sampling with categories: privately owned land, land area 1.5-2 ha. to 20 farmers each. Financial analysis methods, feasibility analysis, and efficient analysis with analysis of business costs, revenues and profits, break even point (BEP), R/C Ratio, B/C Ratio. The research results show that: Profits in Simalunngun Regency are averageRp.8,668,415per harvest The marketing efficiency of carp farming in Simalungun Regency is an average of 9.73%, so marketing is efficient.
Efektivitas Cendawan Cordyceps militaris pada Berbagai Media terhadap Hama Ulat Api (Setothosea assigna L.) Ginting, Jordanta; Kuswardani, Retna Astuti; Pradana, Mahardika Gama
Jurnal Ilmiah Pertanian ( JIPERTA) Vol 8, No 1 (2026): Jurnal Ilmiah Pertanian (JIPERTA), Maret
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jiperta.v8i1.6602

Abstract

This research aims to determine the growth response of Cordyceps militaris in several growing media, determine the best growing media for cultivating Cordyceps militaris and determine the effectiveness of cultivating Cordyceps militaris against fire caterpillar larvae (Setothosea assigna). This research was carried out using a non-factorial Completely Randomized Design method, with 3 growing media treatments, namely N1 = Bran, N2 = Rice and N3 = Corn. The number of repetition was 6. Data analysis uses Anova, where if the results showed a significant and very siognificant effect, it was continued with Duncan’s Multiple Range Test (DMRT). The results showed that the growth medium had no significant effect on the density of yellow fungus and white fungus conidia, the viability of yellow fungus and white fungus condidia. The growth media of C. militaris is found in brand media, which is observed from the viability of fungus, both in yellow and white conidia, which can kill Setothosea assigna larvae which are marked in bran, rice and corn media at the age of 11-19 day after application, causing mortality between 93,34-100%,
BUSINESS ANALYSIS OF CERTIFIED COCOA (THEOBROMA CACAO) SEED NURSERIES IN NORTH SUMATRA PROVINCE (CERTIFIED COCOA (THEOBROMA CACAO) SEED BUSINESS ANALYSIS IN NORTH SUMATRA PROVINCE) Eva Sriana; Retna Astuti Kuswardani; Erwin Nyak Akoeb
International Journal of Economic, Business, Accounting, Agriculture Management and Sharia Administration (IJEBAS) Vol. 3 No. 4 (2023): August
Publisher : CV. Radja Publika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54443/ijebas.v3i4.1080

Abstract

This study aims 1) to find out and analyze how to determine the criteria for certified seeds and 2) to find outand analyze the difference in income levels of certified cocoa seed nursery farms in North Sumatra Province. This research was conducted at seed breeders located in Deli Serdang Regency and Pematang Siantar City. This area was chosen because in these two areas there are certified cocoa seed breeders in the province of North Sumatra. The number of respondents is 5 certified seed breeders who have met several predetermined criteria. The research method used in this study was a survey method, data collection was carried out onJanuary to March 2023.The objectives of this research are answered quantitatively by using the analysis of Total Revenue, Nett Revenue, R/C Ratio and B/C Ratio. The results of the study showed that the cocoa nursery farming carried out provided benefits to all cocoa seed breeders. In the feasibility analysis it is known that the cocoa nursery farming business shows that the cocoa nursery business has received an appropriate assessment of PT. Sahabat Sejati, CV. Prince Agung, CV. Putera perkasa and CV. Dharma Nusantara but the nursery business carried out by CV. Wana Bhakti received an unworthy rating.
FEASIBILITY ANALYSIS OF CARP (Cyprinuscarpio) FARMING AND MARKETING IN DELI SERDANG DISTRICT Zul Fadhly; Retna Astuti Kuswardani; Endang Sari Simanullang
International Journal of Economic, Business, Accounting, Agriculture Management and Sharia Administration (IJEBAS) Vol. 4 No. 3 (2024): June
Publisher : CV. Radja Publika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54443/ijebas.v4i3.1749

Abstract

The aim of this research isto analyze the income of carp farmers(Cyprinus carpio)in Deli Serdang Regency and Simalungun Regency, to analyze the comparative feasibility of goldfish farming(Cyprinus carpio)between Deli Serdang Regency and Simalungun Regency.The sampling technique in this research was carried out using provocative sampling with categories: privately owned land, land area 1.5-2 ha. to 20 farmers each. Financial analysis methods, feasibility analysis, analysis and efficient analysis with analysis of business costs, revenues and profits, break even point (BEP), R/C Ratio, B/C Ratio. The research results show that: Profits in Deliserdang Regency are averageRp.9,024,492 per harvest The marketing efficiency of carp farming in Deliserdang Regency is an average of 9.73%, so marketing is efficient.
PENGEMBANGAN AGROWISATA KEBUN STRAWBERRY BERBASIS BIO-SOSIOPRENEUR Anggraini Tarigan, Raudha; Astuti Kuswardani, Retna; Hartono, Budi
Martabe : Jurnal Pengabdian Kepada Masyarakat Vol 7, No 3 (2024): MARTABE : JURNAL PENGABDIAN KEPADA MASYARAKAT
Publisher : Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jpm.v7i3.883-890

Abstract

Agrowisata adalah upaya untuk mengoptimalkan pemanfaatan sumber daya alam di suatu wilayah yang memiliki potensi di sektor pertanian, dengan tujuan menjadikannya sebagai destinasi pariwisata. Desa Dolat Rayat adalah salah satu desa yang berpotensi sebagai temat agrowisata kebun strawberry. Namun demikian, potensi sumberdaya alam yang berbasis lingkungan, pertanian, kebergaman hayati dan kebudayaan belum dikembangkan secara optimal. Oleh karena itu, tujuan pelaksanaan pengabdian kepada masyarakat adalah dengan mengembangkan agrowisata berbasis bio-sosiopreneur dengan menerapkan mix farming system, pembuatan biosaka dan pupuk organic cair serta perbaikan pengemasan produk. Hasil dari kegiatan tersebut menunjukkan bahwa 50% petani responden menggunakan dan menerapkan pupuk organic cair dari pada biosaka. Serta, peningkatan jumlah kepuasan pengnjung terhadap ketersediaan barang aksesoris.  Sehingga diperlukan pengarahan dan pendampingan secara intensif untuk keberlanjutannya
Cendawan entomopatogen sebagai penginduksi ketahanan tanaman: Sebuah tinjauan sistematis: Entomopathogenic fungi as plant resistance inducer: A systematic review Vajri, Indri Yanil; Trizelia, Trizelia; Kuswardani, Retna Astuti; Saragih, Magdalena
Jurnal Entomologi Indonesia Vol 21 No 1 (2024): March
Publisher : Perhimpunan Entomologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5994/jei.21.1.75

Abstract

IInsect pathologists' attention to the potential of entomopathogenic fungi (EPF) as inducers of plant resistance has increased in recent years. Several types of EPF that have received attention as biocontrol agents for insect pest populations include Beauveria bassiana, Metarhizium anisopliae and Trichoderma sp. because they are able to infect and kill insects directly, has a wide host range, and has been used to control various types of insect pests. Apart from being able to infect and kill insect pests, EPF can also live endophytically in plant tissue and increase plant resistance to pest attacks. The presence of EPF as endophytes is able to induce plant resistance by stimulating an increase phytohormones production. In this article, we reviewed the role of fungi as entomopathogens, the characteristics of entomopathogenic fungi, and their role as inducers of plant resistance. The review was carried out by collecting information  from original articles and related reports which reviewed the results of research on the role of entomopathogenic fungi as plant resistance inducers by including the keywords entomopathogenic endophytic fungi, resistance induction, characterization, systemic resistance and herbivorous insects. This systematic review concludes that EPF as an inducer of plant resistance is a very promising control alternative in the development of plant protection management against insect pests.
EDUKASI PENANAMAN DAN PERAWATAN TANAMAN POHON PRODUKTIF UNTUK KEBERLANJUTAN PEREKONOMIAN MASYARAKAT KAWASAN DANAU TOBA DI KECAMATAN SILALAHI KABUPATEN DAIRI Mardiana, Siti; Astuti Kuswardani, Retna; Yanil Vajri, Indri
Martabe : Jurnal Pengabdian Kepada Masyarakat Vol 8, No 11 (2025): MARTABE : JURNAL PENGABDIAN KEPADA MASYARAKAT
Publisher : Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jpm.v8i11.4358-4363

Abstract

Masyarakat Kecamatan Silalahi dalam beberapa tahun ini dilaporkan semakin kompleks, antara lain menurunnya degradasi lahan, perubahan iklim, serta keterbatasan pengetahuan dan keterampilan dalam pengelolaan tanaman produktif telah berdampak pada menurunnya hasil pertanian dan kelestarian ekonomi masyarakat. Selain itu, masih rendahnya pemanfaatan lahan secara optimal dan minimnya edukasi terkait teknik penanaman serta perawatan tanaman pohon yang berkelanjutan menjadi faktor penghambat dalam pengembangan potensi daerah ini. Pengabdian kepada masyarakat ini bertujuan untuk memberikan edukasi praktis dan aplikatif kepada masyarakat Kecamatan Silalahi mengenai pentingnya penanaman dan perawatan tanaman pohon produktif secara tepat guna. Kegiatan PKM telah dilakukan di Kecamatan Silahisabungan, yang bertempat di komplek Tugu Makam Raja Silahisabungan, Desa Silalahi III, Kabuptaen Dairi. Kegiatan pengabdian kepada masyarakat yang fokus pada Edukasi Penanaman dan Perawatan Tanaman Pohon Produktif di Kecamatan Silalahi, Kabupaten Dairi, telah dilaksanakan dengan baik dan memberikan dampak positif bagi sasaran masyarakat. Kegiatan ini berhasil meningkatkan pengetahuan dan keterampilan petani dalam hal budidaya tanaman pohon produktif secara tepat guna, ramah lingkungan, dan berkelanjutan.
Analysis of Entrepreneurial Intentions in the Agricultural Sector (Agri-Preneur) of Agribusiness Students at Universities in Medan City Muhammad Bobby Ramadhana; Retna Astuti Kuswardani; Emmy Harso Kardhinata; Muhammad Reza Aulia
Dinasti International Journal of Education Management And Social Science Vol. 6 No. 5 (2025): Dinasti International Journal of Education Management and Social Science (June
Publisher : Dinasti Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/dijemss.v6i5.4728

Abstract

This study aims to identify students' entrepreneurial intentions at universities in Medan City. This research was conducted due to the issue of unemployment caused by the skill competencies of agribusiness graduates, the generally low interest among students in creating job opportunities, and the declining enthusiasm for entrepreneurship in the agricultural sector. This study employed a survey method with a research population consisting of 920 agribusiness students from the Faculty of Agriculture in Medan City, spread across three universities: UMA, UMSU, and USU. The sample for this study consisted of 90 students from the three universities. The results show that students' entrepreneurial intentions, particularly at universities in Medan City, demonstrate a high level of interest; however, there is a need for accelerated learning and hands-on practice in entrepreneurship. Entrepreneurial intention in Indonesia, especially at universities in Medan City, falls into the high category. The higher the personal values and personalities aligned with entrepreneurship among students, the higher their level of entrepreneurial intention. This indicates that the students' entrepreneurial intentions reflect a positive response toward entrepreneurship.
Co-Authors Aang Supono Abdul Rahman Abidah Ayu Adam Adelina Lubis Agus Susanto Aisar Novita Alfons Dwi Putra Butar-Butar Aminuyati Arpan Dalimunthe Azwana Azwana Azwana Azwana B. Sengli J. Damanik Beatrix Sofranes Napitupulu Bidasari bidasari bidasari, Bidasari Budi Hartono Chairani Hanum Chairani Hanum Dalimunthe, Arpan Darma Bakti Darma Bakti Dedi Sahputra Dian Dominika br Ginting E. Harso Kardhinata Ellen Lumisar Panggabean Emmy Harso Kardhinata Emmy Harso Kardhinata Endang Sari Simanullang Endang Sari Simanullang Erianto Ongko Erwin Hasibuan ERWIN NYAK AKOEB Erwin Nyak Akoeb, Erwin Nyak Erwin Pane, Erwin Eryanto, Okto Eva Sriana Ferdiansyah, Yudi Firmansyah, Dimas Fitri Yanni Dewi Siregar Ginting, Dian Dominika br Ginting, Jordanta Ginting, Natal Habib Satria Haliatur Rahma, Haliatur Hanny Hafiar Harahap, Abdul Anas Harahap, Darmadi Erwin Hartono Hartono Hartono Hasanuddin Hasibuan, Syahbuddin Ida Sari Siregar Ihsan Effendi Ika Listiana Indah Apriliya Indri Yanil Vajri Irawan, Maya Novita Sari Isnaini Isnaini Jamilah Nasution Lamria Sidauruk Lili Suryati Lubis, Susilawati M. Akbar Siregar Magdalena Saragih Maya Novita Sari Irawan Mitra Musika Lubis Muhammad Akbar Siregar Muhammad Bobby Ramadhana Muhammad Darwis Muhammad Deaprama Aydra Muhammad Khahfi Zuhanda Muhammad Reza Aulia Muhammad Zen Mulkan Andika Situmorang Nadra Ideyani Vita Nasution, Lita Natal Ginting Nina Salmaniah Siregar Noer, Zulhery Nurhidayana Nurhidayana Nurhidayana, Nurhidayana Panji Wibisana Pradana, Mahardika Gama Puspita, Diah Eka Rafiqi Rafiqi Rahmad B.Y Syah Rahmad Fauzi Rahmad Syah Rahmad Syah, Rahmad Rahman, Sayuti Rahmanta Rahmanta, Rahmanta Ramadhana, Muhammad Bobby Raudha Anggraini Tarigan Ria Wuri Andary Rizkan Zulyadi Saipul Sihotang Saragih, Bahdan Saragih, Magdalena Sartini Sartini Sarumaha, Agustinus Seca Gandaseca Seri Sekar Sari Setya, Rezki Tri Silvia Nora Silvia Nora, Silvia Sina sina Sina sina, Sina Siregar, Agus Saputra Siregar, Awaluddin M Siregar, M. Akbar Siregar, Nina Salmaniah Siswa Panjang Hernosa Siswa Panjang Hernosa Siti Hardianti Wahyuni Siti Mardiana Siti Mardiana Siti Sabrina Salqaura Situmorang, Sudiwan Sri Ariani Safitri Sri Milfayetty Sugio Surip Mawardi Surip Mawardi Suswati Suswati Syahbudin Hasibuan Taufik Siregar Tri Febriana Sinaga Trizelia Tumpal H.S. Siregar Wenggedes Frensh Wijoyo, Hadi Yabani Yabani Yusniar Lubis Zahari Zen Zul Fadhly Zulheri Noer