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Y. Andi Trisyono
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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 15 Documents
 1   2 
Search results for , issue "Vol 24, No 1 (2020)" : 15 Documents clear
The Diversity and Abundance of Egg Parasitoids in Brown Planthopper, Nilaparvata lugens Stål. (Hemiptera: Delphacidae) at Different Rice Growth Phases in Saketi, Pandeglang, Banten Nurullah Asep Abdilah; Hadi Susilo
Jurnal Perlindungan Tanaman Indonesia Vol 24, No 1 (2020)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.39050

Abstract

An extensive study about egg parasitoid biodiversity in different plant growth stages is an important need. This study was aimed to determine the diversity and abundance of egg parasitoids Nilaparvata lugens on different rice growth stages in Saketi, Pandeglang, Banten. The parasitoids sample was collected three times with two days interval sampling in three villages, i.e. Sodong (location I), Sindanghayu (location II), and Sukalangu (location III) from February to September 2018. Ten plants (as bait: rice that infected by N. lugens eggs) were put during two days along the transect line (100 meters) with 10 m space in between. The findings revealed that the abundance richness (S), the diversity index (H'), and similarity (J') of egg parasitoids of N. lugens were higher in the location I than those in the locations II and III. The study indicated that the diversity and abundance of egg parasitoids of N. lugens decreased in the generative phase of rice growth.
Stability of Resistance to Imidacloprid in the Brown Planthopper (Nilaparvata lugens Stål.) from Banyumas, Central Java Danarsi Diptaningsari; Y. Andi Trisyono; Aziz Purwantoro; Arman Wijonarko
Jurnal Perlindungan Tanaman Indonesia Vol 24, No 1 (2020)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.43954

Abstract

Imidacloprid is one of the insecticides that has been widely used to control the brown planthopper (Nilaparvata lugens Stål.). The excessive use of insecticides led to the development of insecticide resistance in N. lugens. This study was aimed to determine the stability of resistance to imidacloprid in N. lugens from Banyumas, Central Java Province. The five generations of selection increased the resistance ratio (RR) from 46.20-fold to 150.39-fold. To assess the stability of resistance to imidacloprid in N. lugens, the fifth generation was further reared for 10 generations without exposure to insecticides. The stability studies showed that resistance to imidacloprid was unstable with a decrease of resistance from 150.39-fold to 38.14-fold after 10 generations without selections. Continuous selections with imidacloprid for three generations could increase the resistance level from 150.39-fold to 216.13-fold. The unstable resistance could be managed by removing the selection pressure for a period of time or switching to insecticides with different mode of actions. Information regarding resistance stability would be useful to determine an effective resistance management strategies in N. lugens.
Molecular Detections and Resistance Response of Six Rice Varieties to Tungroviruses from South Sulawesi Saipul Abbas; Sri Sulandari; Sedyo Hartono; Y. Andi Trisyono
Jurnal Perlindungan Tanaman Indonesia Vol 24, No 1 (2020)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.47355

Abstract

The suspected rice virus is found in the field, namely the tungrovirus which is transmitted by green leafhoppers (Nephotettix virescens). The study aimed to detect the tungrovirus molecularly and examine the resistance response of six rice varieties from the transmission of tungrovirus samples from South Sulawesi on a greenhouse scale. Based on the results of molecular detection with RTSV PCR of the double infected sample with DNA bands 1115 bp and RTBV of around 430 bp, Sidrap, and Maros samples were infected by 430 bp size RTBV, while Wajo sample was not detected by both viruses. The results of RTBV sequence analysis showed that the grouping of Sidrap was still one group with Maros and Pinrang samples and different from the group of samples from Malaysia, Thailand, and Philippines. While the grouping of RTSV shows that Pinrang samples are still one group with samples from Bali, Subang, and different from those of the Philippines, India, and Malaysia. The results of transmission in the greenhouse on six rice varieties (TN1, Ciherang, Mekongga, Tukad Unda, Inpari 36, Inpari 37) showed different plant resistance responses such as susceptible, moderately resistant, and resistant reactions based on the amount of disease intensity caused. Varieties that are classified as susceptible are TN1 and Ciherang varieties, moderately resistant, namely Mekongga and Tukad Unda varieties, and resistant varieties namely Inpari 36 and Inpari 37 varieties.
Farmers’ Practices in Using Insecticides to Control Spodoptera exigua Infesting Shallot Allium cepa var. aggregatum in the Shallot Production Centers of Java Gracia Melsiana Aldini; Y. Andi Trisyono; Arman Wijonarko; Witjaksono Witjaksono; Herman de Putter
Jurnal Perlindungan Tanaman Indonesia Vol 24, No 1 (2020)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.47893

Abstract

The beet armyworm, Spodoptera exigua Hübn. (Lepidoptera: Noctuidae) is a major insect pest of shallot in Java. This research was aimed to determine how insecticides were used as the common farmers practice  for controlling S. exigua. The research was conducted in three shallot production centers in Java: the Districts of Brebes (Central Java Province), Nganjuk (East Java Province), and Bantul (the Special Region of Yogyakarta).  Surveys were conducted by interviewing thirty shallot farmers as respondents from each district. The selected thirty farmers were taken from  four sub-districts. Almost all farmers (93.3%) in the three districts had similar perception that S. exigua was the major insect pest in shallot and 84.4% farmers stated that this insect was difficult to control. The four most common insecticides active ingredients  used were chlorfenapyr, methomyl, chlorpyrifos, and emamectin benzoate. Insecticides remained the first choice and they were applied throughout the shallot season mostly based on the calendar (1-3 days interval). When using insecticides farmers tend to exceed the label recommended rates, and the farmers mostly mixed different insecticides into one spray solution. These results suggest that application of insecticides to control S. exigua was already exessive. The potential risks and efforts essential to minimize the risks are discussed. 
Survey of Rice Pests, Diseases and Natural Enemies on “Upsus” Program in Karawang District, West Java Province Kurniawan Effendi; Abdul Munif; I Wayan Winasa
Jurnal Perlindungan Tanaman Indonesia Vol 24, No 1 (2020)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.50365

Abstract

"Upsus" (Special Efforts) Program is a program to increase crop production and productivity to support the acceleration of food self-sufficiency held by the government. The targets are to increase the planting index (IP) by 0.5 and productivity by 0.3 ton/ha/Harvested Dry Grain (HDG). Increased productivity has not been reached optimally. This research aimed to determine the number/types of the dominant pests and natural enemies, and pests and diseases attack rates in the wetland rice plantation "Upsus" Program in Karawang District. Direct observation was carried out on four stages of plant development, in the nursery stage (10–14 days after sowing) 200–300 m², seedlings stage (10–20 days after planting), vegetative stage (5–6 weeks after planting), and reproductive stage (1–2 weeks after flowering) respectively within an area of 2000 m². Twenty samples were observed in the nursery stage and 50 samples in the following stages. The dominant pests and diseases found were Nilaparvata lugens, Leptocarisa oratorius, Schirpophaga incertulas, Cnaphalocrocis medinalis, Scotinophara coarctata, Mythimna separata, bacterial leaf blight (Xanthomonas. oryzae pv. oryzae), blast (Pyricularia grisea) and narrow brown spot (Cercospora oryzae). The recorded dominant natural enemies were Cyrtorhinus sp., Paederus sp., Tetragnatha sp., and Pardosa pseudoannulata. S. incertulas showed the highest attack intensity and the highest disease severity was found in bacterial leaf blight. The largest population of dominant pests and natural enemies was found in the generative stage. The high application of pesticides affected the population of pests, natural enemies, and the level of pest and disease attacks.
Suppressing Bacterial Wilt (Ralstonia solanacearum) by Grafting Tomato Seedlings Grown on Six Comparable Media Anggita Rahmawati; Triwidodo Arwiyanto
Jurnal Perlindungan Tanaman Indonesia Vol 24, No 1 (2020)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.51430

Abstract

Bacterial wilt caused by Ralstonia solanacearum is an important disease of tomatoes. The grafting method with a resistant rootstock variety is a reliable control technique and has been carried out in many countries. Healthy tomato seedling are needed for grafting so this study was aimed to find a good seedling medium to grow the upper stem and rootstock of tomato for grafting and to know the effect of seed media on the intensity of bacterial wilt). Tomato seeds were grown in coir and rice husk charcoal with ratio A (10:0), B (9:1), C (8:2), D (7:3), E (6:4), F (5:5) (coir : rice husk charcoal, v/v). Seedlings were watered regularly and after seedlings aged 21 days, the grafting was conducted. Agronomic observations were justified by measuring germination style, plant height, leaf area, fresh mass and dry mass of plants at 21 days after planting. Tomato seedlings were grafted by using H-7996 variety as a rootstock and Servo variety as an upper stem. Tomato seedlings were transplanted into polybags and then inoculated with R. solanacearum (108 CFU/ml). The disease intensity and AUDPC (Area Under Disease Progress Curve) were recorded. The results revealed that the media with a ratio of 8:2 (coir : rice husk charcoal, v/v) is the best medium for growing tomatoes and the grafting treatment could reduce the disease intensity of bacterial wilt by 40% compared with non grafted treatment and reduce 16% disease intensity compared to the grafted treatment with seedling sown in other ratio media at the last observation.
The Coexistence of Oryctes rhinoceros L. and Xylotrupes gideon L. (Coleoptera: Scarabaeidae) on Immature Plant in Oil Palm Plantation Anugerah Pustakawan Pradipta; F. X. Wagiman; Witjaksono Witjaksono
Jurnal Perlindungan Tanaman Indonesia Vol 24, No 1 (2020)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.52582

Abstract

Oryctes rhinoceros L. and Xylotrupes gideon L. (Coleoptera: Scarabaeidae) are known to attack palms. O. rhinoceros is a major pest in oil palm while X. gideon is a minor pest found in certain areas with a relatively few numbers. Collecting these beetles by hand picking and trapping are intended to reduce their population. Objectives of this study were to describe an intimacy of shared existence of O. rhinoceros and X. gideon in the oil palm plantation, and to determine the effect of manual collection of the beetles from the decomposing trunks compared to those that were collected using attractant traps. The study was conducted in Asahan Regency, North Sumatera, in Sei Silau PTPN III oil palm plantation. Five traps (2 Ha/trap) containing the pheromone ethyl-4-methyloctanoate were installed randomly at a replanting area of immature palm. Beetle collection was performed daily for 30 consecutive days using two methods, i.e. (a) hand-picking of beetles on the decomposed trunks at surrounding the trap for 2 hour per day, and (b) using pheromone traps. Simple regression and correlation model was used for data analysis. Results showed that coexistence of O. rhinoceros and X. gideon was observed at the breeding sites of decomposing trunks, but not in the traps, and their coexistence showed a weak relationship (r = 0.12). Number of collected O. rhinoceros (221 beetles) was much more than X. gideon (82 beetles). Natural sex ratio (male: female) was approximately 0.5 for O. rhinoceros and 0.4 for X. gideon. Collection of the beetles in the decomposed trunks showed a moderately positive relationship (r = 0.43) with, and significantly influenced (18.73%) to the collection of beetles using pheromone traps.
Disease Severity and Molecular Identification of Banana bunchy top virus, Infecting Local Banana in Bali Island Gusti Ngurah Alit Susanta Wirya; I Putu Sudiarta; Dewa Gede Wiryangga Selangga
Jurnal Perlindungan Tanaman Indonesia Vol 24, No 1 (2020)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.54882

Abstract

Bunchy top symptoms on banana has been reported in Bali Island since early 2011. Symptoms variation were observed in the field similar to infection of Banana bunchy top virus (BBTV). The identity of the BBTV in Bali on the basis of DNA-S nucleotide sequence has not been studied, therefore research was conducted to identify the species of BBTV infecting local banana in Bali based on sequence analysis. Research activities were initiated by collecting field samples from several local banana growing areas in Bali Island. Incidence of bunchy top disease in all locations reached 8% to 44% with disease severity ranged from 2.6% to 30%. Identification of BBTV from field samples were done by polymerase chain reaction using specific primers for BBTV (CPF/CPR) followed by sequence analysis of amplified DNA target. Specific BBTV DNA fragment was successfully amplified from 10 field samples; sequence analysis of DNA fragments showed their highest homology with BBTV. In addition the phylogenetic analysis confirmed the close relationship of  BBTV  isolates from Bali with various BBTV isolates from Indonesia and other isolates from the Asian group in GeneBank.
Responses of Tomatoes Grafting Using Variation of Rootstock against Virus Infection and Tomato Yields Tri Retno Widyastuti; Sri Sulandari; Sedyo Hartono; Triwidodo Arwiyanto
Jurnal Perlindungan Tanaman Indonesia Vol 24, No 1 (2020)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.31056

Abstract

Grafting methods on tomato have been done to reduce the infection rate of various pathogens. Begomovirus and Crinivirus are important viruses in tomato plants. The research aimed to determine the resistance response of tomato plants to viral infection, and tomato production. Field research was conducted in Harjobinangun, Pakem, Sleman, Yogyakarta in the endemic area of the viral diseases transmitted by Bemisia tabaci. This experiment used a Completely Randomized Design non-factorial with “Servo” as scion and “Amelia”, “H-7996”, “Mawar” as rootstock. The disease development, presence of viral diseases, and tomato yields were observed. PCR detection using Krusty & Hommr primer successfully amplified Begomovirus DNA bands with an approximate size of 580 bp in tomato plant with interveinal chlorosis, curling, thick, rigid, and stunt symptoms. Chlorotic spots and yellowing symptoms successfully amplified using ToCV-CF/ToCV-CR specific primer for the amplification of Tomato chlorosis virus with DNA band approximately size of 360 bp, whereas using TICV-CF/TICV-CR specific primer could not amplify the virus cDNA. The leaves roll upward with purple interveinal symptoms that were not infected by both viruses. Both viral infections affected the quality of the fruit which indicated by a higher number of abnormal fruits. “Servo” grafted onto “Amelia” and non-grafted Servo were tolerant to viral infection, “Servo” grafted onto “H-7996” or to “Mawar variety were susceptible to viral infection, self-grafted Servo were very susceptible to viral infection. 
Efficacy of Sulfuryl Fluoride as a Fumigant against Aspergillus niger on Corn Seeds Leny Panjaitan; Salbiah Salbiah; Ranta Hadi; Abdurakhman Abdurakhman; Mustopha Ahad
Jurnal Perlindungan Tanaman Indonesia Vol 24, No 1 (2020)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.34822

Abstract

The importation of corn seeds may inadvertently introduce seed-borne fungi like Aspergillus niger. One potential method to control this pathogen was fumigation with sulfuryl fluoride. The objectives of this applied research were to obtain effective concentration and exposure time of sulfuryl flouride as a fumigant to control seedborne fungi and to its physiological impact on corn seeds. Aspergillus niger was isolated from corn seed samples, grew it in potato dextrose agar, and used it for in vitro studies. Parameters  observed were isolates’ growth inhibition. In vivo studies were conducted using corn seed samples infected by Aspergillus niger. Sulfuryl fluoride was applied at the concentration of 30, 40, 50, and 60 g/m3 and 24, 48, 72, and 96 hour of exposure time. Results showed that sulfuryl fluoride concentration of 40 g/m3 for 48 hours at 26-32°C is the only effective concentration against A. niger in vitro but all of the treatment did not significantly affect A. niger in vivo. Concentration of 30, 40, 50, 60 g/m3 for 24 hours does not affect the quality of the seed. 

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