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All Journal JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Jurnal Agrotek Tropika Jurnal Proteksi Agrikultura
Agus Muhammad Hariri, Agus Muhammad
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry

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Journal : Jurnal Proteksi Agrikultura

 1 
Tingkat serangan hama tongkol pada beberapa varietas jagung di Lampung Imawati, Imawati; Fitriana, Yuyun; Swibawa, I Gede; Lestari, Puji; Susilo, Franciscus Xaverius; Hariri, Agus Muhammad
Jurnal Proteksi Agrikultura Vol. 2 No. 1 (2025): MAY, JURNAL PROTEKSI AGRIKULTURA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jpa.121-5

Abstract

Maize is an important commodity as a source of food, feed and industry. The presence of pests can reduce productivity and cob quality. This study aims to determine the various types of pests that attack corn cobs and their level of attack on several varieties of corn. The survey was conducted in four districts of corn production centers in Lampung: East Lampung, South Lampung, Pesawaran, and Pringsewu. Two fields were taken from each district as sampling sites. Identification was conducted at the Plant Pest Science Laboratory, Faculty of Agriculture, University of Lampung. The results showed that aphids were the pest with the highest population density in Pringsewu, Pesawaran, and East Lampung Districts, which were 17.3 individuals per plot, 35.6 individuals per plot, and 23.8 individuals per plot, respectively. Powder beetles had the highest population density in South Lampung District at 15.1 individuals per plot. The highest damage intensity was found in Bisi 99 and Bisi 79 varieties caused by armyworms, which amounted to 4.18% and 4.30%.
Efikasi beberapa jenis fungisida nabati untuk mengendalikan penyakit bulai pada tanaman jagung varietas BISI-18 Ningrum, Anggun Shermila Zahra Candra; Ginting, Cipta; Maryono, Tri; Aeny, Titik Nur; Sudarsono, Hamim; Hariri, Agus Muhammad
Jurnal Proteksi Agrikultura Vol. 1 No. 2 (2024): NOVEMBER, JURNAL PROTEKSI AGRIKULTURA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jpa.2181-94

Abstract

Downy mildew disease (Maize downy mildew) caused by Peronosclerospora spp. is a major disease in corn that can significantly reduce corn production. An environmentally friendly alternative method to control this disease is the use of botanical fungicides. This study aimed to evaluate the efficacy of botanical fungicides derived from betel leaf extract (Piper betle), Javanese chili leaf extract (Piper retrofractum), and neem leaf extract (Azadirachta indica) in controlling downy mildew disease in BISI-18 corn variety. The research was conducted from January to June 2024. The experimental plots measured 2 x 1.25 m (2.5 m²). Treatments were arranged in a randomized block design (RBD) on a 12 x 9 m plot, consisting of five treatments and six replications (groups). Natural inoculation of the downy mildew pathogen was carried out by placing one symptomatic plant in each experimental plot. Observed variables included incubation period, disease incidence and severity, AUDPC (Area Under Disease Progress Curve), phytochemical analysis, and yield. The results showed that the botanical fungicide from betel leaf extract was the most effective in reducing the intensity of downy mildew, while both betel leaf extract and neem leaf extract were moderately effective in suppressing the AUDPC of the disease. However, all botanical fungicide treatments were ineffective in increasing secondary metabolite content and yield of the BISI-18 corn variety.
Co-Authors Anak Agung Gede Sugianthara Cipta Ginting, Cipta Dad Resiworo Sembodo, Dad Resiworo Eko Suroso Franciscus Xaverius Susilo, Franciscus Xaverius Hamim Sudarsono . I GEDE SWIBAWA, I GEDE Imawati Imawati, Imawati Indriyati . Lestari Wibowo Ningrum, Anggun Shermila Zahra Candra PUJI LESTARI Purnomo Purnomo Radix Suharjo Rosma Hasibuan, Rosma Ruruh Anjar Rwandini, Ruruh Anjar Saraswati, Kadek Dwi Solikhin ., Solikhin Suputa Suputa Suskandini Ratih Dirmawati Titik Nur Aeny Tri Maryono Yuyun Fitriana