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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 Potency of Metarhizium anisopliae in Disturbing Oryctes rhinoceros (Coleoptera: Scarabaeidae) Growth and Development Ummi Maysaroh; Edhi Martono; Tri Harjaka
Jurnal Perlindungan Tanaman Indonesia Vol 26, No 1 (2022)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.71755

Abstract

Metarhizium anisopliae is one of the most frequently used insect pathogen fungi in controlling Oryctes rhinoceros. This research aims to learn the potency of fungus M. anisopliae against O. rhinoceros larvae growth and development at the laboratory. The research methods used are T-tests comprising seven treatments and three replications. Fungi were applied in all larvae instar stages starting from the pre-molting of the first larvae instar, post-molting of the second larvae instar, active second larvae instar, pre-molting of the second larvae instar, post-molting of the third larvae instar, active third larvae instar, and pre-pupae stage which were then compared with each instar’s own control. The result indicates that fungus M. anisopliae is capable of suppressing O. rhinoceros growth and development. The fungus induced highest mortality rate of 87% to the third instar larvae and lowest mortality rate of 27% to the pre-molting of the first instar larvae. The fungus also affected the duration of larval stage. At pre-molting of the third larvae instar treated with M. anisopliae, the larval duration was 40 days compared to that of control that took 135 days. At the post-molting of the third larvae instar, the larval duration was 25 days compared to that of control that took 120 days. At the third larvae instar, the larval duration was no more than 15 days compared to that of control that reached 110 days. At pre-pupal stage, the larvae only lasted for 6 days while at control, they were able to last for 15 days. The fungus also affected the success of larva development in becoming pupae in all O. rhinoceros larval stage. The lowest success rate was found in the post-molting of the third larvae instar treated with M. anisopliae with 7% compared to its control with 100% while the highest success rate was found in the pre-molting of the first larval instar with 47% compared to its control with 93%.
The Effect of Biological Control Agents on Paddy Soil Bacterial Community Structure Aisyah Surya Bintang; Arif Wibowo; Achmadi Priyatmojo; Siti Subandiyah
Jurnal Perlindungan Tanaman Indonesia Vol 26, No 1 (2022)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.73197

Abstract

Biodiversity has been defined as the range of significantly different types of organisms and their relative abundance in an assemblage of community. The aim of this research was to understand about soil bacterial community after on biological control agents (BCA) treatments with various formulations. This research was conducted at Sleman Regency, Special Region of Yogyakarta and Faculty Agriculture of Universitas Gadjah Mada. The research conducted with culture dependent and culture independent methods to assess soil bacterial diversity. The results showed that soil bacterial diversity before and after treatment of biological control agent were different. Results from this research suggested different molecular methods regarding soil bacterial diversity based on their benefits and challenges. 
Induced Resistance Mechanism of Twisted Disease Suppression of Shallot by Bacillus spp. Elfrida Indriani Reno Wulan; Arif Wibowo; Tri Joko; Ani Widiastuti
Jurnal Perlindungan Tanaman Indonesia Vol 26, No 1 (2022)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.73198

Abstract

Plant Growth Promoting Rhizobacteria has been known for its ability to induce plant resistance on shallot against twisted disease. Its ability as a bioprotectant agent is estimated to be comparable to the efficacy of Trichoderma which is currently widely used as a biological control agent.. This study aims to determine the content of jasmonic acid, salicylic acid, peroxidase, and disease suppression in shallot by application of Bacillus velezensis B-27, Bacillus cereus RC76, and application with combination of both rhizobacteria. The application was carried out  with tuber dipping for 30 minutes in each treatment with a bacterial density of 108 CFU mL-1. Application using Trichoderma was used as the comparison treatment, and the control plot was not given any treatment. Pathogen inoculation was carried out simultaneously as planting using Fusarium acutatum with a spore density of 106 CFU mL-1. The jasmonic and salicylic acids content was measured using the High-Performance Liquid Chromatography method, and the peroxidase content was determined using the spectrophotometric method. Disease suppression was measured at 10-day intervals. The results showed that treatment with Bacillus cereus RC76 increased jasmonic and salicylic acid levels, while application with Bacillus velezensis B-27 showed the highest level of peroxidase. Treatments with Bacillus spp. were able to suppress twisted disease by 72.2% to 100%. This study demonstrated that application Bacillus spp. suppressed twisted disease on shallot and increased the jasmonic and salicylic acid content as induced resistance mechanism against pathogens.
Monitoring of Khapra Beetle in Jakarta, Tangerang, and Bekasi as Part of Khapra Beetle Free Area Maintenance Program in Indonesia Permada, Johan; Witjaksono, Witjaksono; Wagiman, F. X.
Jurnal Perlindungan Tanaman Indonesia Vol 26, No 2 (2022)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.52892

Abstract

Khapra beetle, Trogoderma granarium Evert (Coleoptera: Dermestidae) is the most important stored pest and was first discovered in Jakarta grain storages in 1972. Since then, quarantine procedures have been massively carried out to prevent khapra beetles to spread in Indonesia. In 2009, Indonesia has been declared as free area from Khapra beetle. However, Indonesia still import grain from non-Khapra beetle free countries and supervision must be carried out continuously to prevent Khapra beetle reinfestation. This survey was conducted at warehouses in five areas of Jakarta, Tangerang, and Bekasi from October 2016 to February 2017 with high risk due to its role as one of the main entry ports and storage of imported grains. Observation was done using probe sampling, direct observation and traps with attractant. Results showed that several insects were found from imported seeds in the surveyed area, but no Khapra beetles were found. It showed that non-Khapra free countries have implemented the required Sanitary Phytosanitary. In addition, it implies that survey methods using attractant traps could complement the probe sampling methods and direct observation that are currently used.
Biological Effects of Indigenous Entomopathogenic Fungi and Their Application Methods on Spodoptera frugiperda Minarni, Endang Warih; Nurtiati, Nurtiati; Istiqomah, Dina
Jurnal Perlindungan Tanaman Indonesia Vol 26, No 2 (2022)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.70816

Abstract

Spodoptera frugiperda is a new pest in Indonesia that attacks corn and can cause up to 100 percent damageon young plants. As an invasive pest, information on potential indigenous natural enemies that cancontrol this pest is needed. This study aims to determine the effectiveness of indigenous entomopathogenic fungi and their application methods on mortality, feeding activity, growth, fecundity, and fertility of S. frugiperda. This study used a factorial Completely Randomized Block Design (RCBD) method consisting of 10 treatments. Treatmentstested werecombination of fungi species, namely Fusarium sp., Aspergillus oryzae, Entomophthora sp. with conidia density 109 ml-1, distilled water and cypermethrin at concentration of 1 ml.L-1 as a control. Two application techniques used were direct application on S. frugiperda larvae and diet test. Each treatment was repeated three times resulting in30 experimental units. Variables observed included mortality, feeding activity, growth, fecundity, and fertility of S. frugiperda. Results showed that the three fungi and cypermethrin treatment did not cause mortality, but reduced feeding activity, fecundity and fertility of S. frugiperda. Application of entomopathogenic fungi ondietswas more effective than directly spraying S. frugiperda larvae. The best treatment combination that suppressed feeding activity was the application of Aspergillus oryzae sprayed on S. frugiperda diet.It was also suspected that S. frugiperda larvae used in this test had developed resistance to cypermethrin.
Sugarcane streak mosaic virus (ScSMV) Resistance Evaluation of Sugarcane Varieties Ernawati, Feny; Djauhari, Syamsuddin; Martosudiro, Mintarto; Putra, Lilik Koesmihartono; Kristini, Ari
Jurnal Perlindungan Tanaman Indonesia Vol 26, No 2 (2022)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.71158

Abstract

Sugarcane streak mosaic virus (ScSMV) is the most important viral disease of sugarcane in Indonesia with distribution in almost all commercial sugarcane plantations. The disease causes significant yield losses of both cane tonnage and sugar yield. The use of resistant varieties is the best approach for controlling viral diseases. This study aims to investigate resistance response of several introduced varieties against ScSMV in a glasshouse condition and the impact of the viral infection on chlorophyll and proline content in sugarcane leaves.  Sugarcane plants were inoculated using ScSMV inoculum one month after planting using an abrasive pad rubbing method. Disease incidence and severity was observed at week 4-12 after inoculation and variety resistance levels were classified based on disease incidence. Confirmation of the virus was done by RT-PCR. Spectrophotometer was used to measure chlorophyll content at dual wavelengths of 645 and 663 nm, and proline content at wavelengths of 520 nm. The results showed that most of the tested varieties were susceptible to ScSMV. There are six highly resistant varieties, namely SRA 1, SRA 2, N 10-4, N 10-7, N10-9, and N 10-13, but these varieties still require to be tested on a field scale. ScSMV infection generally decrease chlorophyll and proline content. However, the physiological effect of ScSMV infection on chlorophyll and proline content needs further investigation.
Preliminary Valuation Activity of Calotropis gigantea L. Extracts against Several Insect Pests Khasanah, Nur; Martono, Edhi; Trisyono, Y. Andi; Wijonarko, Arman
Jurnal Perlindungan Tanaman Indonesia Vol 26, No 2 (2022)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.71938

Abstract

Calotropis gigantea produces secondary metabolites. Some toxicity tests on several pest species had been conducted, yet the most susceptible pest species towards C. gigantea extract is still unknown. This study aims to determine the susceptible insect species and study the behavior of susceptible insects to C. gigantea extract. The test methods used in this research were leaf dipping and spraying upon four insect pest species of different orders (Bactrocera carambolae [Diptera: Tephritidae], Nilapavata lugens [Hemiptera: Delphacidae], Sitophilus zeamais [Coleoptera: Curculionidae], and Plutella xylostella [Lepidoptera: Plutellidae]). The concentration used to determine susceptible insects was 25 g.L-1 and control. Deterrence test of susceptible insects using a choice test and no-choice for 1.5 hours observed every five minutes. Five replication were used for each concentration. Behavioral test of susceptible insects using dietary toxicity test. Five bok choy leaf disc was immersed into solutions for 1 minute and air-dried on a petri dish. Observations were carried out for 12 hours with an observation period of every 1.5 hours. A leaf dipping test for 12 hours with an observation period of every 1.5 hours using the feed method. The concentrations used were 12.5 µgL-1and control. The concentration used was the toxicity test of C. gigantea leaf extract 25, 12.50, 6.25. 3.12, 1.56, 0.78, 0.39, 0.19, 0.09, 0.04 µgL-1. P. xylostella was considered a more susceptible test insect towards C. gigantea leaf extract than B. carambolae, N. lugens, and S. zeamais. C. gigantea leaf extract showed a toxic and feeding deterrent to P. xylostella larvae. The LC50 value of C. gigantea extract against P. xylostella by dipping was 16.9 µg.l-1 and 18.5 µg.l-1 by spray. The components of C. gigantea leaf extract consist of alkaloid, tannin, phenol, flavonoid, saponin, and terpenoid. The result of the research showed that C. gigantea leaf extract has a toxic and deterrent substance against P. xylostella and potential to control P. xylostella.
In Vitro Effectiveness of Beauveria bassiana as a Control Agent against Invasive Fall Armyworm (Spodoptera frugiperda) Larvae Purwanti, Eny Wahyuning; Mulyasari, Julisa Ginti; Budianto, Budianto
Jurnal Perlindungan Tanaman Indonesia Vol 26, No 2 (2022)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.74940

Abstract

Fall armyworm or Spodoptera frugiperda is one of the main pests of corn. It can caused up to 28.08% yield loss. Pest control efforts with broad-spectrum insecticides can cause negative impacts that disrupt ecosystems, non-target biotic factors and the surrounding environment. Beauveria bassiana is an alternative biological control agent that is target-specific. This study was conducted to determine toxic and antifeedant activities of B. bassiana application on third to fifth-instar S. frugiperda larvae. B. bassiana isolates were propagated using corn flakes media and resulted in colonies with conidia density of 1.1×108conidia.g-1. This study used a completely randomized design with 5 treatments and 5 replications. Treatments consisted of P1 namely B. bassiana propagation with a concentration of 60 g.L-1, P2 = 70 g.L-1, and P3 = 80 g.L-1. P0 was a negative control (untreated with B. bassiana) and P4 was a positive control (diazinon with concentrations of 2 ml.L-1). The variables observed were mortality and weight of the leftover feed. The results showed that the formulation of B. bassiana with concentrations of 80 g.L-1 was able to infect armyworms with a mortality percentage of 53.5% which was statistically similar as the effect of chemical insecticides. In addition, inhibition of feeding activity due to treatment could prevent leaf damage up to 68.21%.
Effect of Brassicaceae Waste Application on Soil Nematode Community Ibrahim, Ahmad Yusuf; Supramana, Supramana; Giyanto, Giyanto
Jurnal Perlindungan Tanaman Indonesia Vol 26, No 2 (2022)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.75321

Abstract

Brassicaceae are known to contain compounds that are biofumigants. This study aimed to determine the effect of Brassicaceae waste application on soil nematode community. Broccoli leaves and stems (Brassica oleracea var. italic), cabbage leaves and stems (B. oleracea var. capitate), kailan stems (B. oleracea var. alboglabra), radish leaves (Raphanus sativus), and leaves of kamanilan weed (Rorippa indica) were tested in this study. The total glucosinolate content of Brassicaceae waste was estimated using the palladium method with a modified spectrophotometer. The experiment was carried out in polybags containing 500 grams of soil-infested nematodes. Brassicaceae waste (15 grams/polybag) was chopped and mixed into the soil, watered, and polybags were tightly closed for 14 days. The experiment was arranged in a completely randomized design with nine treatments and five replications. The results of the total glucosinolate analysis showed that broccoli, radish, and kamanilan leaves fall into the high category (144.7-185.2 µmol/g); cabbage leaves, cabbage stems, and kailan stems fall into the medium category (52.0-56.0 µmol/g); and broccoli stems fall into the low category (35.4 µmol/g). There was no correlation between total glucosinolate contents and their effect on suppressing soil nematode communities at the applied effluent dose. The population of bacterivorous nematodes increased in each waste treatment, especially in kamanilan leaf treatment (R. indica) which reached 13,008 individuals. These results indicate that kamanilan weed has good potential to improve soil health. The treatment of Brassicaceae waste against soil nematode communities showed a low diversity index, an uneven evenness index, and a high dominance index.
Effect of Biocontrol Agent (Bacillus and Mycorrhizal Fungi) Application against Twisted Disease (Fusarium spp.) in Off-Season Shallot Production Wibowo, Eko Prasetyo; Widiastuti, Ani; Joko, Tri; Suryanti, Suryanti; Priyatmojo, Achmadi
Jurnal Perlindungan Tanaman Indonesia Vol 26, No 2 (2022)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.75579

Abstract

The demand for shallots has increased along with the Indonesian population. To achieve shallot production goals, farmers began to plant shallots outside usual planting season. However, unfavourable environmental conditions and pest attacks are obstacles faced by farmers. The use of Biological Control Agents (BCA) is a way to improve plant growth and protect plants against plant pathogens or even abiotic stresses. The purpose of this study was to evaluate the response of shallot plants after BCA (Bacillus and Mycorrhizal Fungi) application, especially against twisted disease during off-planting season. This research was conducted by preparing BCA isolates, applying BCA, measuring disease incidence and intensity, observing plant growth development, analyzing phenol content, and analyzing phosphate content. Results showed BCA Bacillus and mycorrhizal fungi did not inhibit Fusarium spp. infection. Agronomic measurements showed no significant difference in crown weight and root weight, but isolate B8 significantly increase the number of leaves while isolate M significantly decreased plant height. Isolates B6, B7, and M significantly reduced the total phenol content in shallot plants. Phosphate analysis on isolate M did not have significant effects on shallot plants, while BCA Bacillus and Mycorrhizal fungi application could not suppress twisted disease. Nevertheless, B8 treatment has the potential to increase shallot growth; therefore, further research must be conducted.

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