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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.
KEPADATAN POPULASI DAN TINGKAT SERANGAN HAMA SIPUT PADA BEBERAPA JENIS TANAMAN KEKUBISAN (Brassicaceae) DI DATARAN TINGGI GUNUNG MARAPI Rusdi Rusli; Trimurti Habazar; Wanda Aningsih Gitri
JPT : JURNAL PROTEKSI TANAMAN (JOURNAL OF PLANT PROTECTION) Vol 5 No 1 (2021): Juni 2021
Publisher : Jurusan Hama dan Penyakit Tumbuhan Faperta Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.5.1.46-54.2021

Abstract

During the last three years, several snails as pests that attacked vegetables, especially cabbages (Brassicaceae) in the highland vegetable crop center of Mount Marapi, were found to cause damage. This study aimed to obtain the species, population, and attack rate of snails pests on the cabbage plants. The study was conducted using a survey method with purposive sampling conducted from July to September 2019 with the criteria of observing plants two weeks after planting and determining the sample diagonally. The results showed that cabbage plants in Mount Marapi, Agam Regency, were attacked by two snails, namely Bradybaena similaris and Parmarion sp. The population of B. similaris was higher than that of Parmarion sp. Mustard plants are most at risk of being attacked by snails, with the highest percentage and intensity of attack even though the damage category is classified as moderate. Mustard plants are also among the first time to be attacked by snails. Cultivation techniques affect the density and attack rate of pest snails at the research site. Key words: Slug attack level, species and population density, Bradybaena similaris, Parmarion sp.
Pengaruh Lama Penyimpanan Ekstrak Kasar Daun Mahkota Dewa (Phaleria macrocarpa) terhadap Mortalitas Keong Mas (Pomacea canaliculata) Rusdi Rusli; Winarto Winarto; Jogi Aprihan Putra
JPT : JURNAL PROTEKSI TANAMAN (JOURNAL OF PLANT PROTECTION) Vol 4 No 1 (2020): Juni 2020
Publisher : Jurusan Hama dan Penyakit Tumbuhan Faperta Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (395.147 KB) | DOI: 10.25077/jpt.4.1.45-51.2020

Abstract

Mahkota dewa [Phaleria macrocarpa (Scheff) Boerl] contains saponin that can be used as a botanical pesticide, including molluscicide. This study aimed to obtain the most effective storage time of leaf crude extract of mahkota dewa on the mortality of golden snail. The application was carried out in the greenhouse of Faculty of Agriculture of Universitas Andalas from March to May 2019. The study used a Randomized Block Design (RBD) consisting of time of storage, i.e., 0 day (2 hours), two days, four days, six days, and eight days those were applied to early-stage, late-stage, male and female of golden snail. The results showed that all storage time of mahkota dewa leaf crude extract had the same effect on early state golden snail mortality. However, at late state golden snail 0 day and two days, storage times were the best. Two days of storage time caused mortality of early-stage, late-stage, and male adult of the golden snail, however, 0 days (2 hours) for female adult. Keywords: Mahkota dewa, golden snail, storage time
PERANAN ACADEMIC SELF EFFICACY TERHADAP ACADEMIC BURNOUT PADA PESERTA DIDIK SMA DALAM PERALIHAN PEMBELAJARAN DARING KE PEMBELAJARAN LURING Vania Rizka Amalia; Rika Vira Zwagery; Rusdi Rusli
Jurnal Education and Development Vol 10 No 3 (2022): Vol.10. No.3 2022
Publisher : Institut Pendidikan Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37081/ed.v10i3.4112

Abstract

This study aims to investigate whether there is a role of academic self-efficacy on academic burnout in high school students during the transition from online learning to offline learning. The method used in this study was a quantitative correlational survey with a cross sectional research design. The characteristics of the respondents included the high school students who experienced the transition from online learning to offline learning. The sampling technique was thenon-probability sampling with the purposive sampling type. Data were collected through offline and online questionnaires via google form. The measurement instruments consisted of the Morgan-Jinks Student Efficacy Scale (MJSES) and the School Burnout Inventory (SBI) which had gone through the adaptation process according to the stages of Beaton et al. (2000). The respondents in this study were (n=243) from three different high schools in Banjarmasin. The result of hypothesis testing using the simple linear regression analysis showed a significance level of 0.000 (p<0.001) and a regression coefficient b = -0.341. It can be assumed that there is a significant negative role between academic self-efficacy and academic burnout in high school students during the transition from online learning to offline learning. The academic self-efficacy variable had a contribution of 11.6% to academic burnout, and the rest was influenced by other factors.
Peranan Information Overload terhadap Konsentrasi pada Proses Belajar Daring Peserta Didik di SMAN 1 Kotabaru Mutiara Hikmah; Rusdi Rusli; Marina Dwi Mayangsari
Provitae: Jurnal Psikologi Pendidikan Vol. 15 No. 2 (2022): Provitae: Jurnal Psikologi Pendidikan
Publisher : Fakultas Psikologi Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/provitae.v15i2.20748

Abstract

The COVID-19 pandemic brings new challenges to the teaching and learning process through online learning. Online learning that is carried out efficiently will have positive effects. In fact, online learning in Indonesia does not run efficiently and has various impacts on several aspects, one of which is concentration. Online learning activities require high concentration and a supportive environment. Inefficient online learning results in an excess of information from the environment, thus affecting the level of concentration of students during learning activities. This fact underlines the purpose of this study, namely to investigate the role of information overload on concentration during the online learning process in students of SMAN (Public Senior High School) 1 Kotabaru. This study is quantitative research using the information overload adaptation scale and concentration scale. The sampling was carried out using the cluster random sampling technique. The subjects were students of SMAN 1 Kotabaru as many as 249 students. Data were analyzed using the simple linear regression with the results showing that the information overload had a significant negative role in predicting concentration. It means that the higher the individual experienced information overload, the lower the concentration the individual had. Meanwhile, the information overload was not the only factor that affected concentration. There were other factors affecting concentration but were not investigated in this study.