{"title":"Infestation of Spodoptera frugiperda on corn in Bengkulu at different elevations","authors":"S. Ginting, M. Chozin, S. Sudjatmiko","doi":"10.23960/jhptt.12438-47","DOIUrl":"https://doi.org/10.23960/jhptt.12438-47","url":null,"abstract":"Pest infestation is a significant challenge in corn cultivation due to the potential damage it can cause, leading to reduced crop productivity or even complete crop failure. This study aims to assess the infestation of Spodoptera frugiperda on corn in Bengkulu, considering various elevations. Ten hybrids resulting from crosses between promising lines (Caps 2 x Caps 17A, Caps 3 x Caps 17A, Caps 3 x Caps 17B, Caps 5 x Caps 22, Caps 5 x Caps 17B, Caps 15 x Caps 22, Caps 17B x Caps 23, Caps 17A x Caps 17B, Caps 17A x Caps 22, Caps 22 x Caps 23) and three commercial hybrid varieties (Bonanza, Paragon, and Secada) were evaluated across three locations at different elevations: lowland (30 meters above sea level) (masl), midland (600 masl), and highland (1000 masl). The assessment focused on the extent of damage and the plant’s resistance to S. frugiperda infestations. The infestation of S. frugiperda is higher at an elevation of 30 masl compared to locations at 600 masl and 1000 masl. Scoring leaf damage caused by S. frugiperda infestation at 30 masl: 2.73–4.86, at 600 masl: 2.73–3.55, and at 1000 masl: 2.4–3.37.","PeriodicalId":31803,"journal":{"name":"Jurnal Hama dan Penyakit Tumbuhan Tropika","volume":"74 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139799858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hurin Nabila Aghnia Ilma, Arif Wibowo, Tri Joko, Siti Subandiyah, Stephen Harper
{"title":"Enrichment of organic material with Trichoderma asperellum for the management of twisted disease on shallot","authors":"Hurin Nabila Aghnia Ilma, Arif Wibowo, Tri Joko, Siti Subandiyah, Stephen Harper","doi":"10.23960/jhptt.12428-37","DOIUrl":"https://doi.org/10.23960/jhptt.12428-37","url":null,"abstract":"Shallots are a type of plant used as a flavoring agent and are often affected by twisted disease caused by Fusarium spp. This study aims to determine the ability of organic material enriched by Trichoderma asperellum in controlling twisted disease, increasing production, and suppressing the population of Fusarium spp. in the soil. The research showed that compost and chicken manure enriched with T. asperellum in a ratio (200:1) were able to reduce the disease incidence compared to controls, in addition to increasing production and suppressing the population of Fusarium spp. in the soil. The colonies of Fusarium spp. in the soil were correlated with disease incidence in each treatment. The highest incidence of twisted disease was followed by the number of Fusarium spp. colonies. The microbial composition did not affect disease suppression when observed using a dependent method using PCR-RISA. The microbial composition with the dependent method using PCR RISA did not affect the suppression of the twisted disease in the shallot plants.","PeriodicalId":31803,"journal":{"name":"Jurnal Hama dan Penyakit Tumbuhan Tropika","volume":"71 7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140486175","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Annisa Hasta Pratiwi, Arif Wibowo, Tri Joko, A. Widiastuti, S. Subandiyah
{"title":"Response of Five Shallot Varieties Applied with Bacillus spp. Against Twisted Disease","authors":"Annisa Hasta Pratiwi, Arif Wibowo, Tri Joko, A. Widiastuti, S. Subandiyah","doi":"10.23960/jhptt.12417-27","DOIUrl":"https://doi.org/10.23960/jhptt.12417-27","url":null,"abstract":"The use of several shallot varieties applied with the biological agent Bacillus spp. is one of the most developed methods of controlling twisted disease, as it is safe and efficient. The large number of shallot varieties released to farmers requires the selection of varieties with the best resistance response to twisted disease. This study aimed to determine the different responses between five local shallot varieties treated with a combination of Bacillus velezensis B-27 and B. cereus RC76 against the twisted disease. This study was conducted in a greenhouse and on the field using Tajuk, Bima Brebes, Bauji, Crok Kuning, and Manjung varieties, which were dipped and sprayed with a B. velezensis B-27 and B. cereus RC76. The treatment of B. velezensis B-27 and B. cereus RC76 on five varieties showed a good response to suppressing twisted disease. The twisted disease incubation period in five varieties treated with the combination of B. velezensis B-27 and B. cereus RC76 showed a slower result than the control, the disease incidence and intensity could be reduced by 70 90%. The best resistance response of varieties treated with the combination of B. velezensis B-27 and B. cereus RC76 was shown by Tajuk compared to the other four varieties.","PeriodicalId":31803,"journal":{"name":"Jurnal Hama dan Penyakit Tumbuhan Tropika","volume":"11 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139445157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abdul Rahman, R. Jahuddin, Andi Khusnul Fatima Bahar, Ahmad Yani, Baharuddin Patandjengi
{"title":"Detection of the presence of bacteria causing grain rot disease (Burkholderia glumae) in some rice seed producers in South Sulawesi, Indonesia","authors":"Abdul Rahman, R. Jahuddin, Andi Khusnul Fatima Bahar, Ahmad Yani, Baharuddin Patandjengi","doi":"10.23960/jhptt.12410-16","DOIUrl":"https://doi.org/10.23960/jhptt.12410-16","url":null,"abstract":"One of the constraints in rice production is grain rot disease caused by Burkholderia glumae, which can be carried by seeds grain. An observation to determine the presence of B. glumae in different grain yield classes of seeds was conducted by taking samples derived from several seed producers in South Sulawesi. This research was carried out by first taking seed samples at the South Sulawesi Agricultural Technology Study Center (BPTP), Tungro Research Workshop, South Sulawesi Main Seed Center (Balai Benih Induk), PT. Sang Hyang Seri, PT. Pertani and PT. Harmoni were then tested at the Agricultural Quarantine Laboratory of Makassar. Based on the observations, it was concluded that all samples in the sowing seed class tested positive for B. glumae, supported by an average percentage of disease incidence of 25.13%, namely foundation seeds from the Balai Benih Induk, as well as foundation seeds and stock seeds from AIAT.","PeriodicalId":31803,"journal":{"name":"Jurnal Hama dan Penyakit Tumbuhan Tropika","volume":"3 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138981175","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Muhammad Taufik, Muhammad Zamrun Firihu, Asmar Hasan, None Gusnawaty HS, None Viska Inda Variani, None Syair, None Muhammad Botek
{"title":"Begomoviruses on two chili types in Southeast Sulawesi Indonesia: variation of symptom severity assessment and DNA-betasatellite identification","authors":"Muhammad Taufik, Muhammad Zamrun Firihu, Asmar Hasan, None Gusnawaty HS, None Viska Inda Variani, None Syair, None Muhammad Botek","doi":"10.23960/jhptt.1241-9","DOIUrl":"https://doi.org/10.23960/jhptt.1241-9","url":null,"abstract":"The association of viral satellite DNA with Begomoviruses influences symptom expression in infected plants. Normalized Difference Vegetation Index (NDVI) is an image processing method used to assess plant health based on the plant’s ability to absorb sunlight for photosynthesis. Therefore, this study aims to assess symptom severity based on symptom variation and NDVI, as well as to detect and identify the presence of beta-satellite DNA associated with chili plants. The study was conducted in North Kolaka Regency, Southeast Sulawesi Province, Indonesia. It involved observations and image recording of symptom variations in the sampled cayenne and big red chili plants, followed by the detection of beta-satellite DNA in the samples using the polymerase chain reaction (PCR). The results confirmed the presence of non-coding satellite DNA associated with the Pepper yellow leaf curl Indonesia virus (PepYLCIV) in all severe, mild, or asymptomatic plant samples. In the phylogenetic tree, the non-coding satellite DNA isolates from Southeast Sulawesi are included in the betasatellite group and exhibit different genetic characteristics from other isolates available in the GenBank database. The cayenne chili with severe symptoms had lower NDVI values than the mild and asymptomatic categories, indicating that this type of chili with severe symptoms had a lower ability to absorb light. Further studies are needed to characterize the alpha-satellite type in the Southeast Sulawesi region for potential use in cross-protection mechanisms against plant virus infections.","PeriodicalId":31803,"journal":{"name":"Jurnal Hama dan Penyakit Tumbuhan Tropika","volume":"121 37","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135138011","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effect of genetic modified maize contained Cry1Ab gene on the arthropods abundance and diversity in limited test field","authors":"L. Herlina, B. Istiaji","doi":"10.23960/jhptt.22371-82","DOIUrl":"https://doi.org/10.23960/jhptt.22371-82","url":null,"abstract":"In Indonesia, transgenic products are still considered innovative, and genetically modified (GM) maize has stayed on the market while its impact on environmental biosafety is now being evaluated. Bt corn has been recognized as one of the solutions to the problem of Asian corn and cob borers to preserve maize production. Therefore, this study aimed to investigate the effect of Bt corn on arthropod richness and diversity in a limited testing field using a randomized block design with four different maize varieties as treatments in six replications. The significant findings showed that Bt corn had no significant influence on the diversity, evenness, and abundance index (Margalef and Meinhinick Index) in the limited testing fields, which were all greater at 85 days after plant (DAP) than 60 DAP. Based on the evenness and abundance index, we conclude that Bt corn does not harm the community of existing arthropods.","PeriodicalId":31803,"journal":{"name":"Jurnal Hama dan Penyakit Tumbuhan Tropika","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45993873","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
F. K. Sahlan, Nur Fadhillah Ayu Eka, M. Junaid, Nur Hardina, Nurmujahidin, T. Kuswinanti, B. Patandjengi
{"title":"The role of bacterial consortium as bioactivator to stimulate production and suppress grain rot disease and bacterial leaf blight in rice","authors":"F. K. Sahlan, Nur Fadhillah Ayu Eka, M. Junaid, Nur Hardina, Nurmujahidin, T. Kuswinanti, B. Patandjengi","doi":"10.23960/jhptt.22365-70","DOIUrl":"https://doi.org/10.23960/jhptt.22365-70","url":null,"abstract":"Burkholderia glumae and Xanthomonas oryzae pv. oryzae are the primary causes of bacterial disease in rice, capable of reducing production and posing a threat to food availability. This research aims to assess the efficacy of a consortium of five bacteria contained in Mikrobat as bioactivators. The goal is to enhance rice yields, mitigate the severity, and suppress grain rot disease and bacterial leaf blight in rice. The research employed a split-plot design encompassing 12 treatment combinations replicated three times. The experimental setup involved two factors: the main plot consisted of rice varieties-Ciherang, Inpari 4, and Trisakti-while the subplots represented types of bioactivators-Mikrobat, EM4, Trichoderma asperellum, and a control. Results demonstrated Mikrobat’s positive impact compared to the control, with an average of 17.37 productive tillers and higher yields than other bioactivator treatments. Notably, Mikrobat exhibited 50.04% spikelets per panicle and a 1000-grain weight of 19.77 g. The severity of disease with Mikrobat treatment was notably lower than with EM4 and T. asperellum, featuring 4.20% for grain rot disease and 4.41% for bacterial leaf blight. This was significantly different from the control, which showed severity rates of 9.94% for grain rot disease and 7.75% for bacterial leaf blight. Among the three tested varieties, Ciherang demonstrated the best response, displaying higher resistance to both tested diseases. The varietal treatments did not significantly differ from each other. Although Mikrobat’s effects were not significantly distinct from EM4 and T. asperellum, its usage still reduced the severity and suppression of grain rot and leaf blight diseases","PeriodicalId":31803,"journal":{"name":"Jurnal Hama dan Penyakit Tumbuhan Tropika","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48304664","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ponijan, E. Handayani, Rakhmiati, N. Kurniawati, Zulkarnaen
{"title":"Joint application of B. bassiana and M. anisopliae bioinsecticides for controlling stink bugs and improving rice yields","authors":"Ponijan, E. Handayani, Rakhmiati, N. Kurniawati, Zulkarnaen","doi":"10.23960/jhptt.22358-64","DOIUrl":"https://doi.org/10.23960/jhptt.22358-64","url":null,"abstract":"The stink bug (Leptocorisa oratorius F.) is a serious pest of head rice (Oryza sativa L.). It feeds on the developing kernels of rice, starting from the heading phase when the panicle is exposed from the boot until the end of the ripening phase, which makes it susceptible to indirect yield loss. Multiple insecticide applications are often made during the hard drought growth stage due to high densities of stink bugs that frequently migrate from nearby harvested fields or as a result of eggs laid by subthreshold populations during the first two weeks of heading. The research was conducted at The Food Crops and Horticulture Laboratory Trimurjo, Central Lampung, from August to October 2020, using a Randomized complete block design (RCBD) with 7 bioinsecticide treatments. The objective of the research was to determine the efficacy of integrating biopesticides B. bassiana and M. anisopliae on stink bug mortality and rice yields. The results showed that stink bug mortality increased by 100% with a lethal period of 72 hours after exposure to B. bassiana 5 g L-1 + M. anisopliae 5 g L-1. Additionally, there was a 19.73% increase in the percentage of rice grain maturity (hard dough) and a reduction of 99.4% in damage (empty grain) compared to the control.","PeriodicalId":31803,"journal":{"name":"Jurnal Hama dan Penyakit Tumbuhan Tropika","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47216638","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Arsi, S. Shk, Lailaturrahmi, H. Hamidson, Y. Pujiastuti, A. Umayah, B. Gunawan, R. Pratama, C. Irsan, Suwandi
{"title":"Effects of holy basil (Ocimum sanctum) on viral disease of chili (Capsicum annum L.) under mixed crop cultivation","authors":"A. Arsi, S. Shk, Lailaturrahmi, H. Hamidson, Y. Pujiastuti, A. Umayah, B. Gunawan, R. Pratama, C. Irsan, Suwandi","doi":"10.23960/jhptt.22349-57","DOIUrl":"https://doi.org/10.23960/jhptt.22349-57","url":null,"abstract":"Chili is one of the important commodities in Indonesia. Chili cultivation faces many obstacles, leading to a decrease in production, such as virus infections. Yellow leaf curl and curly top viruses are groups of viruses that are often found in chili fields. This research was conducted to investigate the effect of intercropping (basil-chili) in suppressing viral diseases, especially yellow leaf curl and curly top viruses. A Randomized block design was used for this research, including intercropping and monoculture. The parameters observed in this study included disease incidence and intensity, the number and weight of chilies. Symptoms of virus infection include leaf curl, yellowing, and stunting. The disease has been reported to be transmitted by insect vectors, such as Aphis gossypii and Bemisia tabaci. The results showed that the incidence and intensity of yellow leaf curl and curly top virus diseases in chili pepper and basil plants were not significantly different in each treatment. The number of healthy chilies and their weight were also not significantly different. Damaged chilies are fruits that have been attacked by fruit flies. Basil intercropped with chilies attracts fruit flies, which affects the quantity and weight of the harvested chilies. The population of B. tabaci was significantly different in each treatment, while A. gossypii did not show significant differences among the treatments. Intercropping basil and chili increased the population of A. gossypii, while the population of B. tabaci decreased in this treatment. These two insect pests are vectors for yellow leaf curl and curly top viruses.","PeriodicalId":31803,"journal":{"name":"Jurnal Hama dan Penyakit Tumbuhan Tropika","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47496355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The toxicity of ammonia as a fumigant to dry wood termite (Cryptotermes cynocephalus L.) on sengon wood","authors":"Abdul Mubaraq Irfan, I. Sakti Harahap, Pudjianto","doi":"10.23960/jhptt.22341-47","DOIUrl":"https://doi.org/10.23960/jhptt.22341-47","url":null,"abstract":"Wood-based packaging material is usually made from low-quality kind of wood, making it a potential medium for carrying or housing wood-destructive organisms. The objective of this research was to investigate the toxicity of ammonia as a fumigant for controlling the dry-wood termite, Cryptotermes cynocephalus. Ammonia was applied as ammonium hydroxide (NH4OH) 25%, which was placed inside the fumigation chamber. At 2.25 cm wood thickness, toxicity tests were performed using 3 levels of NH4OH doses (0, 700, and 3800 mL/m³) and 4 levels of exposure (4, 6, 8, and 10 hours). The toxicity of ammonia fumigant at 1.25 cm wood thickness was assessed using 6 dose levels of NH4OH (0, 200, 378, 587, 1732, and 4188 mL/m³) for 4 hours of exposure. The LD50 and LD90 values of ammonia against the dry-wood termite, C. cynocephalus, inside the sengon wood at 2.25 cm thickness after 4 hours of exposure were 3263 mL NH4OH/m³ and 22,781 mL NH4OH/m³, respectively. Moreover, for 1.25 cm wood thickness, for the same exposure duration (4 hours), the LD50 and LD90 values of ammonia fumigant were 541.594 mL NH4OH/m³ and 1432.125 mL NH4OH/m³, respectively. Meanwhile, for 0.25 cm wood thickness, the LD50 and LD90 values were 67.67 mL of NH4OH/m³ and 241.140 mL NH4OH/m³, respectively. In addition, for 2.25 cm wood thickness, the LD50 and LD90 values of ammonia fumigant were lower when the exposure time was longer (2149 and 10,722 mL NH4OH/m³ for 6 hours of exposure, and 1373 and 8705 mL NH4OH/m³ for 8 hours of exposure).","PeriodicalId":31803,"journal":{"name":"Jurnal Hama dan Penyakit Tumbuhan Tropika","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47637382","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}