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INDONESIA
Jurnal Perlindungan Tanaman Indonesia
Published by Universitas Gadjah Mada
ISSN : 14101637     EISSN : 25484788     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Arjuna Subject : -
Articles 509 Documents
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The Existence of Papaya ringspot virus-Papaya Strain on Cucumber in Gianyar, Bali Dewa Gede Wiryangga Selangga; I Ketut Widnyana; Listihani Listihani
Jurnal Perlindungan Tanaman Indonesia Vol 25, No 1 (2021)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.64703

Abstract

Yellow mosaic symptoms were identified from cucumber production systems in Gianyar and were similar to symptoms of PRSV infection. Further research was conducted to determine diseases incidence and molecular characteristic of PRSV. Ninety leaf samples were collected from Gianyar by purposive sampling and disease incidence calculations were based on symptoms in the field. Detection and identification were done using a RT-PCR with specific primers of CP PRSV-P, CP PRSV-W and DNA sequencing. Disease incidences in the fields ranged between 5.81–66.87%. Specific DNA band 470 bp was successfully amplified from several cucumber leaf samples collected from Ubud, Payangan, Tegallalang, Sukawati, Gianyar, and Blahbatuh; but no DNA were amplified from all samples when using CP PRSV-W specific primer. Nucleotide and amino acid analysis showed nucleotides homology to isolates from Ubud, Payangan, Tegallalang, Sukawati, Gianyar, and Blahbatuh, i.e. 98.9–99.5% and 99.1–100%, respectively. Results indicated that genetic variation of PRSV-P from Gianyar was low. Furthermore, the nucleotides homology of PRSV-P isolates from Ubud, Payangan, Tegallalang, Sukawati, Gianyar, and Blahbatuh were with PRSV-P isolates which infected cucumbers from Nganjuk (LC311783) and Brebes (LC311784), while from native papaya collected in Bali Bali (LC223115) were 97.2–98.4% and 98.6–100%, respectively. Phylogenetic analysis confirmed that PRSV-P isolates from Indonesia were in the same cluster with Thailand isolates. The results showed that sources of PRSV-P inoculums spreading into new areas.
Identification of Pathogens Causing Bulb Rot Disease on Garlic (Allium sativum L.) in Central Java, Indonesia Lutfi Arifin; Siwi Indarti; Arif Wibowo
Jurnal Perlindungan Tanaman Indonesia Vol 25, No 1 (2021)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.64743

Abstract

Garlic bulb rot disease was found from garlics (Allium sativum L.) cultivated from 2017 to 2019 by farmers in Central Java Province, Indonesia. The initial symptoms of the disease were stunted, leaf yellowing, and necrotizing to rotten bulbs. This research was conducted to determine the major causal agent of garlic bulb rot disease in Central Java. A survey was carried out in five regencies across Central Java that were major garlic-producing areas. Nematodes were isolated using water immersion methode and pathogenic fungi were isolated on Potato Dextrose Agar (PDA). Nematode identification was carried out based on the Ditylenchus dipsaci morphological and morphometric character. Seven isolates of Fusarium species were obtained from infected garlic. Identification of four chosen isolates were performed by sequencing the TEF-1α gene. The TEF sequence of isolate TB3, KK1, and KK4 showed 99% similarity with several F. oxysporum, BT3 sequences showed 98% identity with several F. solani, and all were deposited in the NCBI GenBank. Three locations were positively infected by the interaction between D. dipsaci and Fusarium sp. Based on the results of the morphological identification, parasitic nematode was identified as D. dipsaci, while based on the morphological and molecular identification isolates Fusarium were identified as F. oxysporum and F. solani, respectively, as first report causal agents of garlic bulbs rot in Central Java.
In Vitro Evaluation of Trichoderma asperellum Isolate UGM-LHAF against Rhizoctonia solani Causing Sheath Blight Disease of Rice Yeyet Nurhayati; Suryanti Suryanti; Arif Wibowo
Jurnal Perlindungan Tanaman Indonesia Vol 25, No 1 (2021)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.65290

Abstract

Trichoderma spp. is a fungus widely used to control soil-borne pathogens, such as Rhizoctonia solani which is plant pathogenic fungi in widely host range, especially on rice. This research aimed to evaluate the ability of Trichoderma asperellum isolate UGM-LHAF against R. solani causing sheath blight disease of rice in vitro condition. Trichoderma sp. used in this research was obtained from The Biological Laboratory of Pakem, Yogyakarta, Indonesia, and Rhizoctonia sp. was obtained through isolation of diseased rice obtained from rice fields in Yogyakarta. The two isolates were characterized base on morphology and molecular identification based on ITS rDNA. The pathogenicity test of Rhizoctonia sp. was evaluated by adding four sclerotia of Rhizoctonia sp. near rice roots at 6 days after sowing. The in vitro test used dual culture and antifungal activity (0%, 10%, 25%, 50% culture filtrate of Trichoderma sp.) with three replicates of each treatment. Two isolates were identified as T. asperellum and R. solani. Sheath blight symptoms appeared after 12 days inoculation. In the in vitro test, T. asperellum isolate UGM-LHAF was able to inhibit the mycelial growth of R. solani (64.23% on dual culture and 68.5% on antifungal activity). This study suggests that T. asperellum isolate UGM-LHAF able to inhibit the growth of R. solani and can be a further potential candidate as a biocontrol agent against R. solani causing sheath blight disease of rice.
Erratum to “Biology and the Statistic Demographic of Aphis glycines Matsumura (Hemiptera: Aphididae) on the Soybean with Plant Growth Promoting Rhizobacteria (PGPR) Treatment” [Jurnal Perlindungan Tanaman Indonesia, 24(1), 54‒60] Jurnal Perlindungan Tanaman Indonesia
Jurnal Perlindungan Tanaman Indonesia Vol 25, No 1 (2021)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.68694

Abstract

This is a correction to: Biology and the Statistic Demographic of Aphis glycines Matsumura (Hemiptera: Aphididae) on the Soybean with Plant Growth Promoting Rhizobacteria (PGPR) Treatment. Jurnal Perlindungan Tanaman Indonesia, 24(1), 54‒60. https://doi.org/10.22146/jpti.49846 In Author’s affiliation, typed as:Hermanu Triwidodo1)*, Anggun Agustini1),  & Listihani1)1)Department of Plant Protection, Faculty of Agriculture, IPB UniversityJln. Kamper, Kampus IPB Dramaga, Bogor, West Java 16680 IndonesiaTherefore, the Author’s affiliation was corrected to:Hermanu Triwidodo1)*, Anggun Agustini1), & Listihani2)1)Department of Plant Protection, Faculty of Agriculture, IPB UniversityJln. Kamper, Kampus IPB Dramaga, Bogor, West Java 16680 Indonesia2)Faculty of Agriculture and Business, University of Mahasaraswati DenpasarJln. Kamboja No.11 A, Dangin Puri Kangin, Denpasar Utara, Bali 80233 Indonesia The editorial staff apologizes for the inconvenience. The online version of the corrected manuscript has been published in the open journal system of the Jurnal Perlindungan Tanaman Indonesia.
Susceptibility of Two Varieties of Guava (Psidium guajava L.) to Pest and Disease Infection in the Sub-District of Tanah Sareal, Bogor Hermanu Triwidodo; Efi Toding Tondok; Desy Nur Avifah
Jurnal Perlindungan Tanaman Indonesia Vol 25, No 2 (2021)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.49851

Abstract

This survey was done in several guava fields around Bogor and found many unhealthy plants infested by various plant pests and diseases. This study aimed to analyze the effect of various guava cultivars on pest and disease intensity on guava in the Sub-District of Tanah Sareal, Bogor. Samples were collected from 20 fields that consisted of 15 samples of Getas Merah and 5 samples of Bangkok Putih cultivars to identify plant pests and diseases. Interviews were done with field owners to obtain information on cultivating practices. Pests found based on morphological identification included plant bugs (Hemiptera: Miridae), locusts (Orthoptera: Acrididae), bagworms (Lepidoptera: Psychidae), Geometrid caterpillars (Lepidoptera: Geometridae), Pyralid caterpillars (Lepidoptera: Pyralidae), scale insects (Hemiptera: Coccidae), planthoppers (Hemiptera: Flatidae), and mealybugs (Hemiptera: Pseudococcidae). Disease and pathogens identified included red rust disease (Cephaleuros sp.), anthracnose (Colletotrichum gloeosporioides), and fruit cancer (Pestalotia sp.). The occurrence of biting-chewing type pests was greater than piercing-sucking type insects, including 33.33% and 34.99%. Red rust disease was the dominant disease found on both guava cultivars consisting of 68.88% and 63.33% of the samples. 
Arthropod and Earthworm Populations on Irrigated Rice Farming Land after Paraquat Herbicide Application Edhi Martono; Ruwinda Wahyu Wijayanti; Kusnanik Kusnanik; Diprilla Vega Torani
Jurnal Perlindungan Tanaman Indonesia Vol 25, No 2 (2021)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.54363

Abstract

Paraquat dichloride is a herbicide compound commonly used to control grasses and broadleaf weeds. Its use is presently under scrutiny as there is a report that this herbicide is very harmful and hazardous to the environment, especially to wild fauna surrounding farming sites. An irrigated rice farming locale experiment was conducted to observe the effect of paraquat treatment on rice plant biotic environment, particularly its arthropods and earthworm population, two of the most prominent fauna easily affected by paraquat. The study was carried out in Seyegan District, Sleman Regency, Special Region of Yogyakarta Province, on irrigated rice land from October 2018 to February 2019. Four treatments of paraquat, i.e. control (0 kg/ha paraquat), lower dose (0.8 kg/ha), medium dose (1.6 kg/ha), and higher dose (3.2 kg/ha) were arranged. Carbendazim 5 kg/ha was also applied as comparing pesticides, especially for paraquat’s effect on the earthworm. The treatments were replicated five times in a plot of 5 x 5 m2. The number of arthropods and earthworms was observed in about two weeks intervals or more. The observation was done for the number of arthropods and their families, while for earthworms, only for their numbers. The arthropods population data were subjected to diversity indices and statistical analysis, while the earthworms data were statistically analyzed. The result showed that the arthropod numbers in treated plots were statistically significantly different, but biologically their number was still abundant. Their diversity did not differ from the control treatment at all. The arthropod numbers were 2007, 1483, 1095, 1746, and 1204 in control, lower, medium, higher, and carbendazim plots. The earthworms' numbers were still plenty; those in the higher dosage did not differ significantly from those in control. Their numbers from control, lower, medium, higher dose, and carbendazim plots were 811, 658, 567, 882, and 445 individual earthworms. 
Detection of Strawberry vein banding virus (SVBV) and Identification of Viruliferous Insects Associated with Strawberry Plants (Fragaria sp.) in Bali I Putu Sudiarta; Gusti Ngurah Alit Susanta Wirya; Dewa Gede Wiryangga Selangga; Made Getas Pudak Wangi
Jurnal Perlindungan Tanaman Indonesia Vol 25, No 2 (2021)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.57714

Abstract

Plant pests and diseases cause decreases in strawberry yield in Bali, including plant viruses. Strawberry vein banding virus (SVBV) is a virus that infects strawberry plants and is transmitted by insects. However, studies about this disease in Bali are still limited. This study aimed to detect SVBV within insect bodies and determine the insect species of its vector. Methods used included (1) sampling; (2) detection of SVBV from insect bodies using primers (SVBV F/SVBV R) and PCR; and (3) molecular identification of viruliferous insect with primers (LCO 1490 F/HCO 2198 R) using PCR and sequencing analysis. This study successfully detected SVBV DNA in an insect from three insect families associated with strawberry plants in Pancasari Village, Buleleng Regency, Bali. Results from the nucleotide sequences analysis in SVBV viruliferous insects indicate that the insect was Myzus persicae.
Diversity of Beneficial Insect in Corn Plantation at West Sumatra Martinus Abuzar; Ujang Khairul; Hasmiandy Hamid
Jurnal Perlindungan Tanaman Indonesia Vol 25, No 2 (2021)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.61254

Abstract

Corn is one of Indonesia's agricultural products with economical and strategic value and many potential to develop, such as carbohydrates and protein sources. There are two types of beneficial insects in corn production: predators and parasitoids. This study aims to identify the diversity of beneficial insects in corn plantations. This study was conducted from May to September 2019 in four different locations across West Sumatra, namely Padang Pariaman, West Pasaman, Pesisir Selatan, Solok Regencies. Identification of beneficial insects was made in Entomology Laboratory, Faculty of Agriculture, Andalas University. This study adopted a purposive sampling method using 20 sweeps of sweep nets, following a transect line of cornfields. The result showed five orders, 34 families, 101 morphospecies, and 747 beneficial insects in all locations. The diversity in each location varies from high, medium, and low. In all areas, the diversity index was high, with the criteria of ≥ 2.90, implying that the condition of the community structure was very stable. From the evenness index analysis, three locations were classified as high, and the other one was moderate. These three sites were Padang Pariaman, West Pasaman, and Solok, with criteria of ≥ 0.90 and very stable distribution conditions. 
Double Infections of Rehmannia mosaic virus and Potato virus Y on Tobacco Plants in Central Java and Special Region of Yogyakarta Tika Pramudya Wardani; Sedyo Hartono; Sri Sulandari; Susamto Somowiyarjo
Jurnal Perlindungan Tanaman Indonesia Vol 25, No 2 (2021)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.67468

Abstract

Various viruses can cause mosaic disease on tobacco plants. Proper detection of the cause of the mosaic disease helps determine effective control. The purpose of this study was to detect the presence of double infection of Rehmannia mosaic virus (ReMV) with Potato virus Y (PVY) using multiplex RT-PCR in tobacco plants from Central Java and Special Region of Yogyakarta. The viral suspension was inoculated on Chenopodium amaranticolor to obtain one viral colony from one local lesion. The multiplex RT-PCR method using Tobamovirus primers (TobRT-up1 and TobRT-do2) and Potyvirus primers (MJ1 and MJ2) can detect double infection caused by ReMV with PVY in tobacco plants distributed in Central Java and Special Region of Yogyakarta. The multiplex RT-PCR product showed that tobacco samples with mosaic symptoms from Temanggung, Klaten, Bantul, and Kalasan were positive ReMV. Multiplex RT-PCR has successfully detected double infection of ReMV and PVY on tobacco samples from Klaten and Kalasan. ReMV Bantul, Kalasan, and Klaten were homolog to ReMV USA isolate and ReMV Temanggung was homolog to ReMV Japanese isolate. PVY Klaten was homolog to PVY Turkey isolate, and PVY Kalasan was homolog to PVY Iran. 
First Report of Phytopythium vexans (de Barry) Abad, de Cock, Bala, Robideau, Lodhi & Lévesque Causing Potato Tuber Rot in Indonesia Islaminati Anna Santika; Ani Widiastuti; Arif Wibowo
Jurnal Perlindungan Tanaman Indonesia Vol 25, No 2 (2021)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.67556

Abstract

Phytopythium vexans (de Barry) Abad, de Cock, Bala, Robideau, Lodhi & Lévesque was successfully isolated from soil of potato fields in Ngablak, Magelang. This research aimed to obtain the knowledge of P. vexans potency as a pathogen in potatoes, and also morphologically and molecularly identify P. vexans compared to the Oomycetes, Phytophthora and Pythium. Morphological identification was conducted by observing macroscopic colony pattern that grew on PDA medium for five days and microscopic observation on its hyphae, sporangia, papillate, and chlamydospore. Molecular identification was conducted using multigene analysis, ITS and LSU. The in vitro pathogenicity test was obtained by inoculating P. vexans inoculum to healthy potato leaves and tubers. Results of morphological observation showed that P. vexans had a stellate pattern, aseptate hyphae, ovoid shaped sporangium and completed with semipapillate. Chlamydospores were also found and often used for survival. This research revealed that the morphology characters of P. vexans were combination between the characteristics of Pythium and Phytophthora. Whereas, based on the molecular analysis using ITS and LSU, Phytopythium spp. was more closely related to Phytophthora spp. rather than Pythium spp. The pathogenicity test of P. vexans showed that it could infect the flesh of potato tubers by showing a brown lesions symptom

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