cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Hasmiandy Hamid
Contact Email
Hasmiandy Hamid
Phone
-
Journal Mail Official
jptfpua@gmail.com
Editorial Address
-
Location
Kota padang,
Sumatera barat
INDONESIA
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
 1   2   3   4   5 
Eksplorasi Jamur-Jamur yang Berasosiasi dengan Penyakit Mati Meranting pada Tanaman Kakao di Kota Padang Nurbailis Nurbailis; Rummah Yulisyah; Novri Nelly
Jurnal Proteksi Tanaman Vol 5 No 1 (2021): June 2021
Publisher : Plant Protection Departement, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.5.1.1-11.2021

Abstract

Branch dieback is one of the primary diseases in cacao plants. The disease affects young shoots and twigs, causes leaves to die, and leaves them bare, interfering with photosynthesis. This study aimed to determine the causative pathogens in Padang City. The locations were: Sungai Sarik Kuranji, Lubuk Minturun Koto Tangah, and Teluk Kabung Bungus. The locations have the following criteria: age ? three years, the number of plants at the location ? 50 individuals, and found symptoms of branch dieback. The research used descriptive methods. The sample represented 10% of the total number of plants at the location, was collected randomly. The results found four species of fungi associated with the disease, namely Oncobasidium theobromae, Botrydiplodia theobromae, Fusarium decemcellulare, and Fusarium sp1.
Menguji Tingkat Serangan Wereng Batang Coklat Nilaparvata lugens Stal (Hemiptera: Delphacidae) pada Varietas Padi Asal Pasaman di Rumah Kaca Eva Zulaikha; Arneti Arneti; Munzir Busniah
Jurnal Proteksi Tanaman Vol 5 No 1 (2021): June 2021
Publisher : Plant Protection Departement, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.5.1.55-59.2021

Abstract

Brown planthopper (BPH) is a major pest on rice plants that can cause hopperburn and crop failure. The study aimed to determine the level of BPH attack on several local rice varieties in the Pasaman Regency. This research was conducted in a greenhouse, Faculty of Agriculture, Universitas Andalas, using a completely randomized design (CRD), with five treatments and five replications. The treatments were four different rice varieties from Pasaman and control (Siganteng, Pulau Batu, Mundam Kuning, Mundam Putih, IR 42). BPH was infested when the rice was five days after sowing. Observation parameters were the percentage and the intensity of the attacks. Observations were done until 15 days after infestation; after the IR 42 variety died 90%. The results showed that the attack rate of BPH on rice varieties from Pasaman was moderate. The lowest percentage of attack occurred in the Mundam Putih variety (94%), while the intensity of the attack was not significantly different from other varieties.
Uji Beberapa Dosis Minyak Daun Kemangi Ocimum basilicum Linnaeus sebagai Atraktan terhadap Bactrocera spp. pada Tanaman Cabai Fitriah Sucindra Mefta; Hafiz Fauzana
Jurnal Proteksi Tanaman Vol 5 No 1 (2021): June 2021
Publisher : Plant Protection Departement, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.5.1.12-23.2021

Abstract

Fruit flies, Bactrocera spp., are the primary pests on chili plants (Capsicum annuum Linnaeus). A safe and effective control uses traps combined with an attractant from basil leaf oil (Ocimum basilicum Linnaeus). This study aimed to determine the attractiveness of basil leaf oil against fruit flies at several different doses. This research was carried out in Organic Chemistry Laboratory STIFARM Padang, in Tabek Patah Tanah Datar area West Sumatra, and in the Pest Disease Observation and Development of Biological Agents Laboratory, Bukittinggi, West Sumatra, from June to August 2020. The treatment was in the form of different doses of basil leaf oil, which was 0,5 ml per trap, 1.0 ml per trap, 1.5 ml per trap, 2.0 ml per trap, and 2.5 ml per trap. The experiment used a completely randomized design with five treatments and three replications. This study found two species of fruit flies around chili plants, namely Bactrocera papayae and Bactrocera carambolae, which were dominated by male B. papayae. The traps containing 1.5 ml of basil leaf oil attracted the most fruit flies. Temperature and humidity significantly affect the abundance of individual fruit flies.
Pathogenicity and Detection of Phytohormone (Gibberellic Acid and Indole Acetic Acid) Produced by Fusarium spp. that Causes Twisted Disease in Shallot Ayu Lestiyani; Arif Wibowo; Siti Subandiyah
Jurnal Proteksi Tanaman Vol 5 No 1 (2021): June 2021
Publisher : Plant Protection Departement, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.5.1.24-33.2021

Abstract

The twisted disease is one of the essential diseases in shallots caused by Fusarium spp. This study aimed to study pathogenicity and identify Fusarium species isolated from shallot plants with twisted symptoms in Nganjuk and Bantul areas. The Fusarium isolates were identified and then tested for pathogenicity levels and the effect of the hormones GA3 and IAA on shallot symptoms. Molecular identification using NF2 and NF4 successfully identified one isolate of Fusarium oxysporum, three isolates of F. acutatum, and three isolates of F. solani. Each of these species produces different symptoms. Pathogenicity test showed that all isolates had disease incidence reaching 100%, except isolates of F. solani1 causing wilt and F. solani3 causing twisted have the lower disease incidence were 77.8% and 77.7%, respectively. The investigation caused twisted shallot related to different symptoms was tested using the Thin Layer Chromatography (TLC) method. The result indicates that all isolates did not find IAA hormone. In contrast, the hormone GA3 was found in F. solani2 and F. solani3 isolates, caused bulb rot and twisted disease, respectively. Detection of IAA, GA3, and other hormones in shallot plants showed different symptoms should be studied further.
Aktivitas Ekstrak Daun Jarak Kepyar (Ricinus communis Linnaeus) terhadap Perkembangan Nematoda Meloidogyne spp. pada Tanaman Tomat (Lycopersicum esculentum Miller) Elisa Oktavia; Winarto Winarto; Eri Sulyanti
Jurnal Proteksi Tanaman Vol 5 No 1 (2021): June 2021
Publisher : Plant Protection Departement, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.5.1.34-45.2021

Abstract

Meloidogyne spp. is one of the nematodes that cause root-knot on tomato plants. The botanical nematicide that potentially suppresses the nematode is castor bean leaves (Ricinus communis Linnaeus) extract. This research aimed to get the lethal concentration (LC50 and LC95) of castor bean leaves extract against nematode larvae in-vitro and their effect on the development of root-knot nematode (Meloidogyne spp.) in-planta on tomato plant. The research was carried out in Plant Pest and Disease Laboratory and Greenhouse of Agriculture Faculty, Universitas Andalas, using a completely randomized design (CRD) with two stages; in-vitro and in-planta. The research was used the experiment method in-vitro testing consists of six treatments and five replications, and in-planta testing consists of three treatments and nine replications. The result showed that the application of castor bean leaves extracts invitro can suppress Meloidogyne spp. larvae with LC50 by 0,27% and LC95 by 0,87%. The application of castor bean leaves extract in-planta with treatment concentration 2xLC95 (1,74%) showed effectiveness by 74,69% against the developments of Meloidogyne spp. on tomato plant roots.
Infeksi Ganda Pepper Yellow Leaf Curl Virus dan Chilli Veinal Mottle Virus dalam Menimbulkan Penyakit Daun Kuning Keriting Cabai Jumsu Trisno; Jamsari Jamsari; Sri Hendrastuti Hidayat
Jurnal Proteksi Tanaman Vol 5 No 2 (2021): December 2021
Publisher : Plant Protection Departement, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.5.2.77-88.2021

Abstract

Yellow leaf curl disease is the primary disease in chili plants with up to 100% losses. Detection from the field showed a mixed infection between Geminivirus or Pepper Yellow Leaf Curl Virus (PYLCV) and several viruses, including Chilli Veinal Mottle Virus (ChiVMV) and Cucumber mosaic Virus (CMV). Therefore, this study aimed to determine the role of PYLCV and ChiVMV dual infection in influencing the development of chili yellow leaf curl disease. This study used a completely randomized design (CRD) with six treatments and ten replications. The treatments used were multiple Geminiviruses and ChiVMV infections simultaneously, before ChiVMV co-infection, after Geminivirus infection, single infection and whithout infection viruses. The results showed that the presence of ChiVMV infection before, after, and concurrently with Geminiviruses infection could increase the yellow leaf curl disease intensity and reduce plant height and wet weight growth. The mean scale value of ChiVMV infection before, after, and concurrently with Geminiviruses infection were 3.38, 3.90 and 3.58 compared to single Geminiviruses infection (scale of 3.20) and single ChiVMV (scale of 1.33). The interaction analysis of ChiVMV and geminiviruses infections based on the percentage reduction in plant growth height and wet weight showed additive interaction. ChiVMV co-infection further exacerbated the incidence of yellow leaf curl diseases in chilies.
Effect of Induced Plant Expression on Ants and Extrafloral Nectaries Number in Cotton and Castor Nalini Thiyagarajan; Revathi Mani
Jurnal Proteksi Tanaman Vol 5 No 2 (2021): December 2021
Publisher : Plant Protection Departement, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.5.2.89-97.2021

Abstract

Plant response to the attack of herbivores is a usual phenomenon, but the number of extrafloral nectaries (EFNs) in response to herbivore attack is least studied and recorded. The current study was undertaken to document the response of cotton (Gossypium hirsu-tum Linnaeus) and castor (Ricinus communis Linnaeus) to herbivore and artificial induction. This field research was carried out experimentally on cotton and castor in two study models. The first study was the presence of ants on plants induced by herbivore (with herbivore, without herbivore) and the number of EFNs produced by each plant. The second study was the presence of ants on artificially induced plants (damaged leaves, undamaged leaves) and the number of EFNs produced by each plant. The results revealed that EFNs numbers in cotton and castor were increased by herbivore and artificial inductions, which also induced the number of ant recruitment events in cotton and castor. Artificial induction techniques can be utilized in pest management programs to attract and conserve plant guards, viz., biocontrol agents, including ants in the field. EFN is a cheap resource in quickly and effectively maintaining consistent population levels of biocontrol agents within the crops, even during pest-free times.
Efikasi Serbuk Daun dan Biji Nimba dalam Kemasan Teh untuk Mengendalikan Sitophilus oryzae pada Beras Nurul Aflah; Hafidhah Afriana; Husni Husni; Tjut Chamzurni; J Jauharlina
Jurnal Proteksi Tanaman Vol 5 No 2 (2021): December 2021
Publisher : Plant Protection Departement, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.5.2.98-106.2021

Abstract

Neem (Azadirachta indica Juss) powder is often used as a botanical insecticide which is applied directly to stored rice to control the rice beetle (Sitophilus oryzae), however this method may cause contamination on the stored rice. This study aimed to determine the effectiveness of neem leaf and seed powder in teabag packaging in controlling S. oryzae. The study used a completely randomized design with a factorial pattern consisting of 2 treatment factors. The first factor was the type of neem powder (without powder, leaf powder, and seed powder), and the second factor was the application technique (direct sow and in teabag packaging). The results showed that the type of neem powder and its application technique on rice interacted significantly in causing mortality of S. oryzae at 2 - 3 days after treatment (DAT) and was very significant at observations of 4-7 DAT. Applying leaf and seed powder in teabag packaging can provide higher yields than direct sowing. At 7 DAT, the highest mortality of S. oryzae occurred in the treatment of neem seed powder with direct sow application technique (57.50%), the mortality was lower in tea packaging (33.33%). The application of neem powder in teabag packaging caused a higher number of the adult of the first offspring of S. oryzae and the damage to rice. The application of leaf and seed powder of neem in teabag packaging does not cause contamination of rice, so it is safer for consumers.
Potensi Tanaman Refugia dalam Meningkatkan Keanekaragaman Serangga pada Pertanaman Padi Sawah di Padang Pariaman, Sumatera Barat Widya Nawir; Novri Nelly; Yaherwandi Yaherwandi
Jurnal Proteksi Tanaman Vol 5 No 2 (2021): December 2021
Publisher : Plant Protection Departement, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.5.2.60-68.2021

Abstract

Some flowering plants like common zinnia (Zinnia elegans (Jacq) Kuntze), marigold (Tagetes erecta Linnaeus), and cockscomb flowers (Celosia sp.) have been used as refugia and conservation plants for predators and parasitoids but are still not yet optimal. Planting refugia plants can affect insect diversity and evenness index, affecting the stability and balance of the agroecosystem. The study aimed to determine the effect of common zinnia, cockscomb flowers, and marigold as refugia on insects’ diversity and evenness index and their potential as a medium for conservation of predators and parasitoids. The study was conducted in organic rice fields in Batang Anai Sub-district, Padang Pariaman District, West Sumatra, from May to July 2020. The Insect was collected from plots covering an area of ??48 m2 and identified in the Bioecology laboratory, Faculty of Agriculture, Universitas Andalas. Planting common zinnia, marigolds, and cockscomb flowers increased the index of diversity and evenness of insects around rice fields. The index of diversity and evenness of insects on cockscomb flowers (H = 2.90) was higher than that of common zinnia (H = 2.61) and marigold (H = 2.63). Cockscomb flowers have more potential as a medium for conserving predators and parasitoids.
Akurasi dan Prediksi Kejadian Hopperburn Wereng Batang Coklat (Nilaparvata Lugens Stal) menggunakan Citra Sentinel-2 Rahmad Gunawan; Reflinaldon Reflinaldon; Yaherwandi Yaherwandi
Jurnal Proteksi Tanaman Vol 5 No 2 (2021): December 2021
Publisher : Plant Protection Departement, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.5.2.107-117.2021

Abstract

Forecasting of brown planthopper attack or BPH (Nilaparvata lugens Stal) using artificial intelligence and vegetation index of Sentinel-2 Satellite Imagery improves forecasting the incidence of hopperburn. This study aimed to determine the accuracy and correlation of the random forest classification of Sentinel-2 imagery to the incidence of hopperburn reported by Plant Pest Organisms Observer (PPOO) and determine the best method for predicting it. The study was done through observation and secondary data processing about the age of the plant, the incidence of hopperburn by BPH, interviews with farmers, and PPOO. The results showed that the hopperburn NDVI index ranged from 0.23 - 3.8. The random forest classification accuracy was high (Kappa Index = 0.82). The relationship between the hopperburn area from the PPOO report and the predicted area from Sentinel-2 images classified as (R2 = 0.53, R = 0.728) with the equation Y = -1.5 + 0.82 X. The correlation can be improved using spatial regression Geographically Weighted Regression (GWR4) with the best gaussian distance of 1.76 km (R2 = 0.6, R = 0.77). The best prediction for the NDVI stage of hopperburn attack time series with random forest (RMSE = 0.12819) was better than the prediction of the hopperburn attack time series with the exponential smoothing method from the PPOO report (RMSE 3.302184).

Page 3 of 16 | Total Record : 155

 1   2   3   4   5 

Filter by Year

2017 2025


Reset
Filter By Issues
All Issue Vol. 9 No. 1 (2025): June 2025 Vol. 8 No. 2 (2024): December 2024 Vol 8 No 2 (2024): December 2024 Vol. 8 No. 1 (2024): June 2024 Vol. 7 No. 2 (2023): December 2023 Vol 7 No 1 (2023): June 2023 Vol. 7 No. 1 (2023): June 2023 Vol 6 No 2 (2022): December 2022 Vol. 6 No. 2 (2022): December 2022 Vol 6 No 1 (2022): June 2022 Vol. 6 No. 1 (2022): June 2022 Vol. 5 No. 2 (2021): December 2021 Vol 5 No 2 (2021): December 2021 Vol. 5 No. 1 (2021): June 2021 Vol 5 No 1 (2021): June 2021 Vol. 4 No. 2 (2020): December 2020 Vol. 4 No. 1 (2020): June 2020 Vol 4 No 1 (2020): June 2020 Vol. 3 No. 2 (2019): December 2019 Vol 3 No 2 (2019): December 2019 Vol. 3 No. 1 (2019): June 2019 Vol. 2 No. 2 (2018): December 2018 Vol. 2 No. 1 (2018): June 2018 Vol 1 No 2 (2017): Desember 2017 Vol. 1 No. 2 (2017): Desember 2017 Vol. 1 No. 1 (2017): June 2017 Vol 1 No 1 (2017): June 2017 More Issue