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Pengujian Ekstrak Sederhana Bagian Tumbuhan Cassia alata Linnaeus terhadap Colletotrichum Gloeosporioides secara Invitro Arneti Arneti; Eri Sulyanti
JPT : JURNAL PROTEKSI TANAMAN (JOURNAL OF PLANT PROTECTION) Vol 1 No 2 (2017): Desember 2017
Publisher : Jurusan Hama dan Penyakit Tumbuhan Faperta Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (329.419 KB) | DOI: 10.25077/jpt.1.2.42-51.2017

Abstract

Plant extracts have been known to cause inhibit the growth of Colletotrichum gloeosporioides.This study was aimed to determine the most potential part of Cassia alata crude extract to control antrachnose on chili. The study was conducted in Phytopathology Laboratory, Plant Pests and Diseases Department, Agriculture Faculty, Andalas University, from April to June 2015. The research used Completely Randomized Design (CRD) with seven treatments and five replications. The treatments were several extracts from different parts of C. Alata: 1) control 2) flower, 3) old leaf, 4) young leaf, 5) stem, 6) root, and 7) seed with concentration of 5% respectively. Variables observed were colony growth, colony width, conidia number, colony wet and dry weight, and conidia germination. The result showed that all of C. alata extracts could inhibit the growth of C. gloeosporioides in vitro. The best extract was from the old leaf with the percentage of colony width, conidia number, colony wet and dry weight, and conidia germination of 64,30%, 82,41%, 37,77, 29,8%, and 79,96% respectively.
Pemanfaatan Teknologi Pengelolaan OPT Tanaman Sayuran Berbahan Baku Ramah Lingkungan di Kanagarian Candunang Kab Agam Ujang Khairul; Arneti Arneti; Reflin Reflin
Jurnal Pengabdian Warta Andalas Vol 23 No 1 (2016): Warta Pengabdian Andalas
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat (LPPM) Universitas Andalas

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Abstract

Activity of use management technologogy for pest and plant disease control on vegetables based environment friendly in nagariPaninjauan Kabupaten Tanah Datar has been carried out from June toNovember 2014. This activity aims to improve farmers knowledgeabout the diseases attack of vegetables and know how to manage thedisease using biopesticide and botanic biopesticide, These activities include: Counseling and training, andevaluation. Results of monitoring the level of disease in vegetable cropsis known that those plants attacked by pest and pathogens e.i, soft rot (cabbage), anthracnosa, bacterial wilt and leaf spot (chili), tuber rot (carrots) and bacterial leaf blight and Alternaria spots (onion leaves).Attack rate ranged between 16 – 20% for disease and 15 – 30% for pest.From the activities can be take several conclusions: (1) Extent of diseasein vegetable crops in this area is high, (2) The farmers do not yetunderstand the causes of pest and plant disease ( pathogens) that attacktheir vegetable crops, (3) The farmers do not understand the methods ofdisease control using biopesticide and botanic biopesticide, (4) Theextension and field practice, have improved farmers' knowledge aboutthe management of vegetable diseases using biopesticides and botanicbiopesticide