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JPT : JURNAL PROTEKSI TANAMAN (JOURNAL OF PLANT PROTECTION)
Published by Universitas Andalas
ISSN : 25800604     EISSN : 26213141     DOI : -
Core Subject : Agriculture, Social,
Agriculture, Biological Sciences & Forestry Environmental Science
Arjuna Subject : -
Articles 155 Documents
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Aktivitas Insektisida Campuran Ekstrak Air Buah Piper aduncum L. (Piperaceae) dan Batang Cymbopogon ciratrus (Dc.) Stapf (Poaceae) Terhadap Larva Crocidolomia pavonana F. (Lepidoptera: Crambidae) Lina, Eka Candra; Supriadi, Adventus; Yunisman, Yunisman; Martinius, Martinius
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 1 No. 1 (2017): June 2017
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.1.1.34-41.2017

Abstract

Crocidolomia pavonana is an important pest in Brassicaceae. Botanical insecticides is pest control alternative which meet to eco-friendly manajement. This study aims to determine lethal concentration of single and mixture of water extract of Piper aduncum (Piperaceae) fruit and Cymbopogon cirtatus (Poaceae) stem against Crocidolomia pavonana larvae. The study was conducted in laboratory experiment through preliminary test and advance test using a completely randomized design (CRD). Observations were included to larval mortality, antifeedant effect, and duration of larval development. Bioassay was done against second instar larvae of C. pavonana using leaves immersion method during 48 hours. The results show that LC50 and LC95 value of mixture extract are 2.83% and 5.79% respectively. Based on index combination analysis, P. aduncum and C. citratus mixture extract were antagonistic at LC50 and additive at LC95 . Water extract of P. aduncum and C. citratus were relatively weak to influence feeding activity of C. pavonana larvae (41%). Mixture extract also extend larval development from second instar to third instar around 0.24 days and third instar to fourth instar around 0.97 days.
Pengujian Ekstrak Sederhana Bagian Tumbuhan Cassia alata Linnaeus terhadap Colletotrichum Gloeosporioides secara Invitro: Bahasa Inggris Arneti, Arneti; Sulyanti, Eri
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 1 No. 2 (2017): Desember 2017
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | 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.
Kemampuan Bakteri Endofit dalam Mengendalikan Penyakit Rebah Kecambah dan Layu Sclerotium (Sclerotium rolfsii) pada Kedelai: Bahasa Inggris Marwan, Husda; Mulyati, Sri; Wilia, Weni
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 1 No. 2 (2017): Desember 2017
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.1.2.52-61.2017

Abstract

Endophytic bacteria have potency as candidates of biological control agents to plant disease, because the bacteria as reported to be associated with plant resistance to pathogens. The study aimed to determine the ability of endophytic bacteria to inhibit the growth of Sclerotium rolfsii in vitro, and suppress damping off disease incedence and Sclerotium wilt disease severity on soybean. The ability of endophytic bacteria to inhibit S. rolfsii was carried out on 44 isolates that isolated from soybean, rice and banana. The ability of endophytic bacteria to control damping off disease was carried out on 13 isolates were selected in vitro (BE-CW1, BE-M1, BE-M2, BE-M3, BE-M4, BE-S1, BE-S6, BE-S13, BE-S14, BE -BRRG2, BE-KH1), and also fungicides and two controls (healthy plant and diseased plant). The ability of endophytic bacteria to control Sclerotium wilt was carried out on 6 isolates which showed pressure on damping off disease (BE-M1, BE-M2, BE-M3, BE-M4, BE-CW1, BE-KH2) and 2 controls (healthy plants and diseased plants).The results showed that the thirteen isolates of endophytic bacteria could inhibit mycelial growth and germination S. rolfsii. Soybean seed treatment revealed that dipping the seed in endophytic bacterial isolates suppressed damping off disease incedence with a range of 37.4 to 49.9% and Sclerotium wilt disease severity of 20.1 to 85 % , as well as reduced the mortality of soybean by 26.3 to 84.4 % . BE-KH2 isolate was able to suppress Sclerotium wilt in soybean by 85% and reduce the mortality by 67.5%.
Biologi Penghisap Buah Helopeltis sp. (Hemiptera: Miridae) pada Buah Kakao dan Mentimun Nelly, Novri; Khairul, Ujang
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 1 No. 2 (2017): Desember 2017
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.1.2.62-67.2017

Abstract

This research purposed to study biology of Helopeltis sp. on cocoa and cucumber fruits. Research was done in insect bioecology laboratory using direct observation with 10 replications for each fruit. Parameter observed were copulation (hours), preoviposition time (days), number of eggs, nymphals, and adult periods (days), Oviposition time (days), and post oviposition time (days). The data obtained were analyzed descriptively and compared with t-test. Result of this research showed that Helopeltis sp. could thrive in cacao and cucumber fruits. Adult of Helopeltis sp. longevity in cacao fruits was 16 days and in cucumber fruits was 13 days. The number of eggs product average 10-10.9 eggs/female.
Keanekaragaman Serangga Air di Sawah Konvensional dan Organik di Kota Padang Hamid, Hasmiandy; Martinius, Martinius
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 1 No. 2 (2017): Desember 2017
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.1.2.68-78.2017

Abstract

Study on diversity of aquatic insects in rice is important to determine the condition of the rice fields. The purpose of this research was to study the community of aquatic insects in two difference cultivations (organic and conventional) and sub districts (Koto Tangah dan Pauh) in Padang City. Purposive random sampling method was used. Samples were collected by using water insect nets and water bottle traps. The results showed that the aquatic insects found in the study site consisted of 5 orders (Coleoptera, Diptera, Ephemeroptera, Hemiptera, Odonata), 16 families, 51 species and 3808 individuals. Aquatic insect populations in organic farming was higher (5 orders, 15 families, 48 species and 3089 individuals) than conventional (4 orders, 9 families, 20 species and 719 individuals). Aquatic insects found were acting as predators (3718 individuals), detrivors (7 individuals), and omnivors (83 individuals). The diversity indexes of aquatic insects on two locations were classified as medium but the diversity in organic cultivation was higher than conventional.
Patogenisitas Cendawan Entomopatogen dari Rizosfir Kacang Tanah (Arachis hypogaea Linnaeus) terhadap Hama Penggerek Polong Etiella zinckenella Treitschke (Lepidoptera: Pyralidae) Reflinaldon, Reflinaldon; Martinius, Martinius
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 1 No. 2 (2017): Desember 2017
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.1.2.79-87.2017

Abstract

The objective of this study was to get entomopathogenic fungi isolates of bean plant rhizosphere derived from Nagari Sawah Tangah, District Pariangan, Tanah Datar Regency and to determine their pathogenicity on pod borer E. zinckenella. Isolation method was performed by diluting the soil samples in a serial dilution into 10-3 and cultured in PDA media. Furthermore, the purification was based on the shape and color of the fungus colonies. A total of 16 isolates obtained at the initial stage were selected by testing them against the fifth instar larvae Tenebrio molitor. Results showed that only 4 isolates (STA 1, STA 2.2, STA 5, and STB 3.1) could be further tested against E. zinckenella pod borer using completely randomized design (CRD). The highest pathogenicity isolates was exhibited by STA 1 belonged to Metarhizium genera.
Pengaruh Waktu Aplikasi Paecilomyces spp. terhadap Penekanan Nematoda Bengkak Akar (Meloidogyne spp.) pada Tanaman Tomat (Lycopersicum esculentum Mill.) Winarto, Winarto; Reflinaldon, Reflinaldon
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 1 No. 2 (2017): Desember 2017
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.1.2.88-94.2017

Abstract

The application time of Paecilomyces spp. was assumed affecting its ability to suppress the root knot nematode (Meloidogyne spp.). This study aimed to get the effective application time to suppress Meloidogyne spp. The study was carried out at greenhouse and Biological Control Laboratory of Faculty of Agriculture, University of Andalas from March to June 2015. The research method used was compeletely random design (CRD) with 5 treatments and 4 replications. The application times consisted of 14 days before planting, 7 days before planting, at planting time, 7 days after planting, 14 days after planting and control. Application time of Paecilomyces spp. on 7 days before planting was the best time to reduce the number of root knot, the group of nematode eggs, nematode eggs and nematode larvae in the soil.
Intensitas Serangan Xanthomonas oryzae pv. oryzae pada Beberapa Varietas Padi Sawah dan Dampaknya terhadap Pertumbuhan dan Hasil Panen: bahasa inggris pinem, Terkelim; syarif, zulfadly
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 2 No. 1 (2018): June 2018
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.2.1.9-17.2018

Abstract

The attack intensity of several rice varieties to bacterial leaf blight (BLB) disease caused by Xanthomonas oryzae pv. oryzae is assumed to be different. This study aimed to determine the intensity of BLB attacks on several rice varieties and determine level of resistance. The research was conducted from April to July 2016 on experimental land of Center for Agricultural Training (BBPP) of Batangkaluku, Gowa Regency, South Sulawesi Province. The study used an experimental method with Randomized Block Design (RBD) in 6 treatments and 4 replications. The treatment in the form of 6 rice varieties, namely: IR 64, Ciherang, Situ Bagendit, Sintanur, Mekongga, and Celebes. The results showed that all varieties were included in the criteria of moderately resistant to bacterial leaf blight X. oryzae pv. oryzae. The attacks of BLB tended to increase every week, with the highest attacks found on 84 day after planting. The highest attack was found at 84 day after planting. The most resistant variety was Mekongga with the intensity of attacks ranging from 0 – 7.09% (resistant - moderately resistant) and able to provide the highest yield of 7.2 tons ha-1. Plant height and number of tillers were not affected by bacterial leaf blight attacks.
Preferensi dan Tingkat Serangan Keong Mas (Pomaceae canaliculata Lamarck) terhadap Beberapa Varietas Padi (Oryza sativa Linnaeus): english Rusli, Rusdi; Gani, Suardi; Hutasoit, Rudy Thomson
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 2 No. 1 (2018): June 2018
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.2.1.1-8.2018

Abstract

The study of preference dan attack level of golden apple snail (Pomaceae canaliculata Lamarck) on several rice varieties was carried out in farmers' paddy fields at Limau Manis, Pauh District, Padang, West Sumatera. The aim of this study was to obtain golden apple snail preferences and its attack level on several rice varieties. The experiments used a Randomized Block Design (RBD) with 8 treatments and 3 blocks. The treatments were several varieties commonly grown in West Sumatera, namely: Cisokan, IR 42, Anak Daro, IR 66, Batang Piaman, Ceredek Merah, Kuriek Kusuik, and Junjuang. The parameters observed were the preference, percentage and intensity of golden apple snail attacks on rice, and rice yield. The results showed that golden apple snail liked all rice varieties, but different varieties affected the preference and attack level. The three most preferred rice varieties by golden apple snail were IR 66, IR 42 and Anak Daro. Meanwhile the three least preferred rice varieties were Kuriek Kusuik, Batang Piaman and Junjuang with a low attack level and a high of yield.
Aktivitas Bagian Tumbuhan Sirih Hutan (Piper aduncum Linnaeus) yang Berasal dari Lokasi Berbeda dalam Menekan Pertumbuhan Colletotrichum gloeosporioides secara Invitro: english Kumalasari, Lisa; Sulyanti, Eri; Hamid, Hasmiandy
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 2 No. 1 (2018): June 2018
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.2.1.18-27.2018

Abstract

The boiled water of Leaves and inflorescences of spiked pepper (Piper aduncum) is one alternative to control the pathogen of anthracnose (Colletotrichum gloeosporioides) in chili. The purpose of this study was to determine the activity of leaves and inflorescences of spiked pepper from different locations in suppressing the growth of C. gloeosporioides in vitro. The research was carried out in Phytopathology Laboratory of Pests and Plant Diseases Department, Faculty of Agriculture, Universitas Andalas from March to May 2017. The study used a Completely Randomized Design (CRD) with 5 treatments and 5 replications. Data from observations were analyzed by ANOVA and LSD at the level of 5%. The parameters observed were the growth of fungal colony area, wet and dry weight, number of conidia/ml of suspension and conidia germination. The results showed that the application of leaves and inflorescences of spiked pepper from different locations could suppress the growth of C. gloeosporioides in chili in vitro. Boiled water of inflorescences of spiked pepper from Bukit Lampu - Bungus - Padang City became the best treatment because it had the highest ability in suppressing C. gloeosporioides colony area with an effective suppression of 73.5% and reducing the highest germination capacity with an effective suppression of 23.28%. Its ability to reduce wet and dry weight were not different from inflorescences boiled water from Limau Manis, then the ability to suppress the number of conidia was not significantly different from leaves and inflorescences boiled water from Bukit Lampu and Limau Manis.

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