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All Journal Cropsaver : Journal of Plant Protection Riwayat: Educational Journal of History and Humanities Flora: Jurnal Kajian Ilmu Pertanian dan Perkebunan
Russianzi, Wanda
Alumnus Of Plant Protection Department, Agriculture Faculty, Institut Pertanian Bogor, Campus IPB Darmaga, Bogor, Indonesia, 16680
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Education Social Sciences

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Synergistic Activity of Mixtures of Piper aduncum Fruit Extract and Three Microorganism-Derived Insecticides against the Diamond Back Moth, Plutella xylostella Wanda Russianzi; Djoko Prijono
CROPSAVER Vol 2, No 1 (2019)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (348.189 KB) | DOI: 10.24198/cs.v2i1.22299

Abstract

Plutella xylostella is an important pest of Brassicaceae vegetable crops. Frequent use of insecticides containing single active ingredients can cause resistance in P. xylostella. This work was done to evaluate the synergism between Piper aduncum fruit extract and three microorganism-derived insecticides, i.e. abamectin, chlorfenapyr, and spinetoram, against P. xylostella from Pacet District, Cianjur Regency. Results of leaf-residue feeding bioassays with 48-h feeding treatment showed that LC95 of abamectin, chlorfenapyr, and spinetoram at 96 h after treatment (HAT) was about 5.8, 7.0, and 1.9-fold higher than their respective field rates. Thus, based on leaf-feeding assays P. xylostella larvae from Pacet-Cianjur were not susceptible to abamectin and chlorfenapyr, but were still fairly susceptible to spinetoram. LC95 of P. aduncum extract at 96 HAT was 0.68% (w/v). Based on combination index at the LC95 level - 96 HAT, mixtures of P. aduncum extract with all three test insecticides were synergistic. Thus, P. aduncum extract is potential to be used as an alternative ingredient to increase the effectiveness of the three test insecticides against P. xylostella.Keywords: Botanical insecticides, cabbage pest, insecticide mixtures, microorganism-derived insecticides, synergism.
Penerapan Early Warning System untuk Meningkatkan Pengetahuan Karyawan dalam Pengendalian Hama Perkebunan Kelapa Sawit Uli Abshor; Wanda Russianzi; Edi Wiraguna
Flora : Jurnal Kajian Ilmu Pertanian dan Perkebunan Vol. 2 No. 2 (2025): Juni : Flora : Jurnal Kajian Ilmu Pertanian dan Perkebunan
Publisher : Asosiasi Riset Ilmu Tanaman Dan Hewan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62951/flora.v2i2.403

Abstract

This study aims to enhance the knowledge and skills of oil palm plantation workers at PT Kencana Sawit Indonesia in controlling pests through the application of the Early Warning Sistem (EWS). Based on findings from a Focus Group Discussion (FGD), four major challenges in pest control were identified: limited employee knowledge, inefficient task distribution, challenging topography, and delayed responses to pest outbreaks. An outreach program was conducted involving educational sessions supported by pre-test and post-test assessments. The results revealed a significant improvement in employee knowledge, with the average score increasing from 37% to 83%. Furthermore, participant satisfaction with the outreach activities reached 86.50%, as measured by a Likert scale survey. These results confirm that the EWS-based extension program successfully addressed critical knowledge gaps, fostered motivation among employees, and improved the overall efficiency of pest management practices. As a result, this initiative is expected to support more effective pest control and positively impact plantation productivity.
Enhancing Avocado Farming Through Targeted Agricultural Extension for Knowledge Improvement in Composting and Cultivation Practices Wiraguna, Edi; Rochmah, Hidayati Fatchur; Meliala, Merry Gloria; Azhar, Aidil; Dahliani, Lili; Purnamawati, Iis; Russianzi, Wanda; Muliasari, Ade Astri; Dardanella, Derry
Riwayat: Educational Journal of History and Humanities Vol 7, No 4 (2024): October, Social Issue and Education
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jr.v7i4.42250

Abstract

This study evaluates the effectiveness of agricultural extension activities aimed at enhancing the knowledge of farmers of composting and good agricultural practices for avocados in Mulyaharja village, Bogor, West Java Province, conducted in October 2024. A total of 10 participants completed pre- and post-tests designed to measure their understanding of avocado cultivation and composting practices. Results showed a significant increase in knowledge regarding avocado cultivation, with scores rising from 64% to 79% post-intervention (P=0.049). However, the improvement in composting knowledge was minimal, increasing from 57% to 63%, which was not statistically significant (P=0.29). These findings indicate that targeted extension activities can effectively improve knowledge related to avocado farming while suggesting a need for more engaging methods to enhance composting knowledge. This research highlights the critical role of tailored extension services in promoting sustainable agricultural practices and enhancing the capabilities of farmers in the region.
Advancing agricultural development through horticultural extension services Wiraguna, Edi; Ardiansyah, Agi Juan; Rochmah, Hidayati Fatchur; Meliala, Merry Gloria; Azhar, Aidil; Dahliani, Lili; Purnamawati, Iis; Russianzi, Wanda; Muliasari, Ade Astri; Dardanella, Derry
Riwayat: Educational Journal of History and Humanities Vol 7, No 4 (2024): October, Social Issue and Education
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jr.v7i4.41449

Abstract

Horticultural extension services in Bogor are instrumental in promoting agricultural development by enhancing the productivity and sustainability of local horticultural practices. This study emphasizes the empowerment of women farmer groups, known as Kelompok Wanita Tani (KWT), to improve horticultural production through targeted initiatives such as providing essential production facilities and enhancing the skills of farmers and extension officers. Data collection was conducted from July to September 2024, using questionnaires and surveys to assess the knowledge of KWT members before and after extension activities. The results indicated a significant increase in knowledge related to horticultural crop cultivation, with pre-test scores rising from 69% to 87% post-training, demonstrating a 17% improvement (P0.01). This improvement in knowledge and practices is a promising sign for the future of horticultural development. Correlation analysis revealed interesting relationships among agricultural knowledge, educational background, age, and agricultural experience. This research highlights the crucial role of extension services in disseminating knowledge and best practices, ultimately improving the livelihoods of farmers in Bogor and contributing to the local economy.
Co-Authors Ardiansyah, Agi Juan Astri Muliasari, Ade Azhar, Aidil Dardanella, Derry DJOKO PRIJONO Edi Wiraguna Lili Dahliani Meliala, Merry Gloria Purnamawati, Iis Rochmah, Hidayati Fatchur Uli Abshor