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Pengembangan Kemitraan dan Pemberdayaan Masyarakat melalui Pembibitan Pepaya (Carica papaya L.) di Desa Bojong Muhammad Gian Gianggi Pratama; Belia Elgasari; Bonjok Istiaji; Yayat Hidayat; Suwarto; Willy Bayuardi
Jurnal Pusat Inovasi Masyarakat (PIM) Vol. 2 No. 3 (2020): Juni 2020
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat, Institut Pertanian Bogor

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The Calina variety of papaya (Carica papaya L.) is a fruit plant has a wide and varied range of markets, ranging from traditional to modern. Papaya seedlings are expected to produce highquality, high-productivity papayas that fulfill future demands on the export market. This community service activity in Bojong Village in Cilimus District aims to make the village a central production of Calina papaya seeds. In addition, the use of greenhouses that is less than optimal encourages maximum re-use to obtain good seeds, and the use of plastic cups as a medium for seeding papaya as an effort to prevent waste. The activities consisted of three series, including making Calina papaya cultivation modules, socializing Calina papaya cultivation, and practicing Calina papaya nurseries in a greenhouse using plastic cups. Keywords: Calina papaya, cultivation, nurseries

Serangan Ulat Grayak Jagung (Spodoptera Frugiperda) pada Tanaman Jagung di Desa Petir, Kecamatan Daramaga, Kabupatem Bogor dan Potensi Pengendaliannya Menggunakan Metarizhium Rileyi Ahmad Aripin Naek Lubis1; Ruly Anwar; Bonny PW Soekarno; Bonjok Istiaji; Sartiami Dewi; Irmansyah; Dian Herawati
Jurnal Pusat Inovasi Masyarakat (PIM) Vol. 2 No. 6 (2020): November 2020
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat, Institut Pertanian Bogor

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Spodoptera frugiperda J. E. Smith (Lepidoptera: Noctuidae) is a new pest in maize cropping inIndonesia. These insects originated in the Americas and have spread to several countries and causecrop loss in corn. Beginning in 2019, this pest has reportedly attacked corn plants in the Sumatraregion. This activity aims to find out the existence of S. frugiperda in the area of Petir Village,Dramaga Sub-District, Bogor District. The survey results show that S. frugiperda has attacked thecorn crop in Petir Village. Specific characters found in S. frugiperda are inverted "Y" in the headcapsule and a black dot pattern on the abdomen (point four and trapezoid). S. frugiperda larvae found in the village of Petir attack the corn growing point, but the population is still low. Entropathogenicfungi are bioinsecticides that can be used to control pests. Metarizhium rileyi is an entomopathogenicfungus that has the potential to control S. frugiperda in maize. The results indicated that M. rileyi waseasily propagated en masse in agar medium and in good virulence in S. frugiperda.

Keanekaragaman dan kelimpahan kumbang daun (Coleoptera: Chrysomelidae) pada empat tipe penggunaan lahan yang berbeda di Taman Nasional Bukit Duabelas dan Hutan Harapan, Provinsi Jambi Rosyid Amrulloh; Woro Anggraitoningsih Noerdjito; Bonjok Istiaji; Purnama Hidayat; Damayanti Buchori
Jurnal Entomologi Indonesia Vol 19 No 2 (2022): July
Publisher : Perhimpunan Entomologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5994/jei.19.2.147

Deforestation has a negative impact toward ecosystem and diversity. Landuse change has been known to negatively impact insect like ant and beetle in Jambi Province. This research aims to study the diversity, abundance, and composition of the leaf beetle in the Bukit Duabelas National Park (TNBD) and Harapan Forest landscape. Insect sampling was carried out using canopy fogging method. Four core plots were determined in each land use (as replicates) and each plot consist of three as subplot. Insect was collected in 16 traps (size 1 m x 1 m) that was installed under plant canopy prior to fogging process. The collected sample was sorted and identified in the Biocontrol Laboratory, Plant Protection Department, Faculty of Agriculture, IPB University. Total of 1,040 individuals leaf beetles were collected, belonging to 6 subfamilies and 127 morphospecies. The result of this research showed that a different lanscape has no effect give impact to insect abundance. Different landuse however does significantly impact the abundance and diversity of leaf beetle (Coleoptera: Chrysomelidae).

Identification of Pests and Diseases on Coconut (Cocos nucifera L.) in Sangihe Island Regency, North Sulawesi Province, Indonesia Alisya Talita Papona; Efi Toding Tondok; Bonjok Istiaji
Agriprima : Journal of Applied Agricultural Sciences Vol 7 No 2 (2023): SEPTEMBER
Publisher : Politeknik Negeri Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25047/agriprima.v7i2.520

As an archipelago regency, the Sangihe Islands has been known for its expanses of coconut plantations, which are one of the local community's primary commodities and sources of income. An inventory of pests and diseases specific to coconut in this area has never been carried out, and this information is needed, especially regarding sustainable coconut management. This study aimed to determine the presence of coconut pests and diseases in Sangihe and to obtain the latest conditions related to pests and disease incidence. The research was carried out through several stages, i.e., interviewing farmers, sampling, and identifying and documenting pests and diseases. The climate condition of Sangihe Island is classified as type A (very wet), with an average rainfall of 248 mm, temperature of 27 C, and humidity of 83% from 2017-2021. This condition is one of the determining factors for the existence of pest attacks and disease-causing pathogen infection on coconut. Pests dominated as disturbing organisms compared to diseases caused by plant pathogens. These pests included grasshoppers, coconut rhinoceros beetles, coconut hispine beetles, coconut mites, and white-tailed mice. Observations of the damage intensity by Sexava coriaceae were conducted in the Tahuna Barat district by selecting three land categories. The most severe damage occurred in field B (mostly planted with Hybrid Coconuts) with a percentage of 39%, while the lowest damage was in field C (mostly planted with Tall Coconuts), at 17%. The major disease detected was a gray leaf spot caused by the fungus Pestalotiopsis palmarum. The highest disease incidence and severity were found in Tabukan Utara district with percentages of 43% and 22% respectively, while the lowest incidence and severity were found in Tahuna Barat district with percentages of 3% and 1%, respectively.

Pengaruh cahaya artifisial di malam hari (artificial light at night-ALAN) terhadap serangga Mawan, Amanda; Nazarreta, Rizky; Kasmiatun; Istiaji, Bonjok; Hidayat, Purnama; Buchori, Damayanti
Jurnal Entomologi Indonesia Vol 19 No 3 (2022): November
Publisher : Perhimpunan Entomologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5994/jei.19.3.255

Insect populations have declined significantly over the last few decades. Anthropogenic factors such as deforestation, land-use change, climate change, and pesticides play a major role in insect population decline. In addition to those factors, insects also face challenges from air, noise, and light pollution derived from human activities. Light pollution in the form of artificial light at night (ALAN) is generally known to be one of the factors driving insect declines but it has rarely been studied in Indonesia. In this literature review, we collected empirical evidence from previous studies to provide a comprehensive report on the impact of ALAN on insects. Most studies demonstrate a decline in insect populations in areas with high ALAN intensity, such as urban areas. Furthermore, ALAN was reported to disrupt insect visual systems, which results in disturbances to predator avoidance and foraging movements. Until now, most work related to artificial light in Indonesia have focused on light as a method of controlling pests. Hence, studies related to artificial light as a pollutant are urgently needed to increase our understanding of the effects of ALAN on the survival of organisms, especially insects. Future research must seek suitable solutions to create environmentally and ecologically friendly conditions for various organisms, especially those susceptible to the negative effects of light, such as insects.

Rapid assessments of the rice brown planthopper (Nilaparvata lugens Stal) outbreak in Semarang District, Central Java: Effects of farmers' low KAP: Belajar dari kajian cepat ledakan wereng coklat (Nilaparvata lugens Stal) di Kabupaten Semarang, Jawa Tengah: Pengaruh dari rendahnya PST petani Triwidodo, Hermanu; Istiaji, Bonjok; Efriani, Nurul Farida; Retnowati, Lilik; Amanatillah, Niky Elfa
Jurnal Entomologi Indonesia Vol 20 No 2 (2023): July
Publisher : Perhimpunan Entomologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5994/jei.20.2.137

Rapid assessments on the outbreak of rice brown planthoppers (BPH) (Nilaparvata lugens Stal) were conducted to investigate the status of BPH populations and the causative factors behind the outbreak. These assessments served as the basis for developing a proper action program. The assessments took place in Banyubiru Sub-District, Semarang District covering four villages (Kebondowo, Rowoboni, Tegaron, Kebumen) in December 2013. We analyzed BPH data, along with information about farmers' practices in managing pests collected through interviews conducted in January 2018 in Indramayu. Additionally, we examined data on the number of BPH-infested areas in Java from 2010 to 2020 and the stock of insecticides in Java in 2021. Simple statistical analyses were carried out. The BPH population had spread throughout Banyubiru and was present in all sampled plots. The average number of BPH eggs ranged from 115.25 to 379.65 per rice hill, while the BPH nymphs and imagoes ranged from 3.42 to 11.87 per rice hill. The relatively low nymphs to imagoes ratio might be influenced by the high BPH predator populations, which ranged from three to six individuals per rice hill. Suspected causes of BPH resistance and resurgence included the application of banned and improper insecticides, as well as the repeated use of the same insecticide active ingredients for an extended period. It is recommended to discontinue the mass spraying of insecticides to prevent further plant damage. In 2022, the Pest Control Movement has suggested replacing chemical insecticides with biological or natural pesticides. Intensive extension programs are strongly needed.

Effect of genetic modified maize contained Cry1Ab gene on the arthropods abundance and diversity in limited test field Herlina, Lina; Istiaji, Bonjok
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 23 No. 2 (2023): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA: JOURNAL OF TROPICAL PLAN
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jhptt.22371-82

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.

Unveiling alliinase gene candidates in shallots using resistance gene motif-based degenerate primers Herlina, Lina; Istiaji, Bonjok
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 24 No. 2 (2024): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA: JOURNAL OF TROPICAL PLAN
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jhptt.224274-283

Shallots are integral to Indonesian daily life, with annual production reaching two million tons. However, the superior varieties are often susceptible to disease, highlighting the need for new resistant varieties. Understanding the genetic basis of disease resistance is crucial for breeding efforts aimed at developing new varieties. Alliinase, an enzyme crucial for garlic defense, is a potential candidate for enhancing shallot resistance. This study aims to identify alliinase gene candidates in shallots using degenerate primers. Genomic DNA from the Bima Brebes genotype was isolated, and degenerate primers successfully amplified 600–800 bp fragments. Three sequences were selected for further analysis, with one sequence showing high similarity to known resistance genes. Multiple sequence alignment revealed characteristic resistance gene motifs, supporting their candidacy as resistance genes. Phylogenetic analysis grouped these sequences with known resistance genes, further supporting their potential. These findings provide valuable insights for breeding programs aiming to enhance resistance in shallots through a molecular breeding approach. The identified alliinase gene candidates can be used to develop disease-resistant shallot varieties. Incorporating these genes into breeding programs can enhance resistance, improving yield and stability in shallot production.

Pengaruh cahaya artifisial di malam hari (artificial light at night-ALAN) terhadap serangga Mawan, Amanda; Nazarreta, Rizky; Kasmiatun; Istiaji, Bonjok; Hidayat, Purnama; Buchori, Damayanti
Jurnal Entomologi Indonesia Vol 19 No 3 (2022): November
Publisher : Perhimpunan Entomologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5994/jei.19.3.255

Insect populations have declined significantly over the last few decades. Anthropogenic factors such as deforestation, land-use change, climate change, and pesticides play a major role in insect population decline. In addition to those factors, insects also face challenges from air, noise, and light pollution derived from human activities. Light pollution in the form of artificial light at night (ALAN) is generally known to be one of the factors driving insect declines but it has rarely been studied in Indonesia. In this literature review, we collected empirical evidence from previous studies to provide a comprehensive report on the impact of ALAN on insects. Most studies demonstrate a decline in insect populations in areas with high ALAN intensity, such as urban areas. Furthermore, ALAN was reported to disrupt insect visual systems, which results in disturbances to predator avoidance and foraging movements. Until now, most work related to artificial light in Indonesia have focused on light as a method of controlling pests. Hence, studies related to artificial light as a pollutant are urgently needed to increase our understanding of the effects of ALAN on the survival of organisms, especially insects. Future research must seek suitable solutions to create environmentally and ecologically friendly conditions for various organisms, especially those susceptible to the negative effects of light, such as insects.

Rapid assessments of the rice brown planthopper (Nilaparvata lugens Stal) outbreak in Semarang District, Central Java: Effects of farmers' low KAP: Belajar dari kajian cepat ledakan wereng coklat (Nilaparvata lugens Stal) di Kabupaten Semarang, Jawa Tengah: Pengaruh dari rendahnya PST petani Triwidodo, Hermanu; Istiaji, Bonjok; Efriani, Nurul Farida; Retnowati, Lilik; Amanatillah, Niky Elfa
Jurnal Entomologi Indonesia Vol 20 No 2 (2023): July
Publisher : Perhimpunan Entomologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5994/jei.20.2.137

Rapid assessments on the outbreak of rice brown planthoppers (BPH) (Nilaparvata lugens Stal) were conducted to investigate the status of BPH populations and the causative factors behind the outbreak. These assessments served as the basis for developing a proper action program. The assessments took place in Banyubiru Sub-District, Semarang District covering four villages (Kebondowo, Rowoboni, Tegaron, Kebumen) in December 2013. We analyzed BPH data, along with information about farmers' practices in managing pests collected through interviews conducted in January 2018 in Indramayu. Additionally, we examined data on the number of BPH-infested areas in Java from 2010 to 2020 and the stock of insecticides in Java in 2021. Simple statistical analyses were carried out. The BPH population had spread throughout Banyubiru and was present in all sampled plots. The average number of BPH eggs ranged from 115.25 to 379.65 per rice hill, while the BPH nymphs and imagoes ranged from 3.42 to 11.87 per rice hill. The relatively low nymphs to imagoes ratio might be influenced by the high BPH predator populations, which ranged from three to six individuals per rice hill. Suspected causes of BPH resistance and resurgence included the application of banned and improper insecticides, as well as the repeated use of the same insecticide active ingredients for an extended period. It is recommended to discontinue the mass spraying of insecticides to prevent further plant damage. In 2022, the Pest Control Movement has suggested replacing chemical insecticides with biological or natural pesticides. Intensive extension programs are strongly needed.

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