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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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Pelembagaan Konsep Pengendalian Hama Terpadu di Indonesia Kasumbogo Untung
Jurnal Perlindungan Tanaman Indonesia Vol 6, No 1 (2000)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.12392

Abstract

Indonesia for a period of ten years (1989-1999) has trained more than one million farmers through a national programme of IPM Farmers' Field School especially on riceand other food crops. The success of farmers training based on participatory approach in Indonesia has been recognized globally as one of the pioneer of the Ecological Integrated Pest Management paradigm. The follow-up activities after the National IPM Programme which need to be done is to institutionalize IPM concept among government, industries and community institutions. Due to the presence of conflicts between ecological IPM paradigm and technological IPM paradigm which formally and legally supported by the government and the industry, processes of institutionalization of IPM in Indonesia will require a large efforts and funds, and take a long time.
Kisaran Inang Hama Krepes Suryanti Suryanti; Tri Harjaka
Jurnal Perlindungan Tanaman Indonesia Vol 13, No 2 (2007)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.11863

Abstract

Krepes is an acarina which caused damaged to Auricularia sp. cultivation. The fungi attacked by acarina will be dead and decayed. The host range test were done by inoculating krepes on several edible mushroom and on several stages of cultivated Auricularia sp. The research show that krepes attacks only Auricularia sp., and attack all stages of cultivated Auricularia sp.,
Pengaruh Beberapa Jenis Ekstrak Tanaman sebagai Moluskisida Nabati terhadap Keong Mas (Pomacea canaliculata) Agus Kardinan; Momo Iskandar
Jurnal Perlindungan Tanaman Indonesia Vol 3, No 2 (1997)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.12963

Abstract

Research has been carried out at the Pest and Disease Laboratory, Research Institute for Spices and Medicinal Crops, Bogar, in the 1997. Research consisted of three parts, those were; (I) The toxicity of Dens elliptica, Blumea balsamifera, and methaldehyde, by determining the LC50 values, (2) Effect of the leaves of B.balsamifera, Euphorbia tirucalli and Tephrosia vogelii, (3) Effect of the most poisonous plant as ovicides. Result showed that D.elliptica was the most poisonous material to golden snail with its LC50 value was 400ppm, but it was still under the toxicity value of methaldehyde (11. 78 ppm). There was no significant difference among B.balsamifera, T.vogelii and E. canaliculata, but extract of B.balsarnifera tended to be better material among those plant extracts tested. The extract of D.elliptica did not affect egg hatching of golden snail.
Analisis Aktivitas Enzim Peroksidase dan Kandungan Asam Salisilat dalam Tanaman Cabai Merah yang Diinduksi Ketahanannya terhadap Cucumber Mosaic Virus (CMV) oleh Ekstrak Daun Bunga Pukul Empat (Mirabilis jalapa) Hersanti Hersanti
Jurnal Perlindungan Tanaman Indonesia Vol 11, No 1 (2005)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.12104

Abstract

Leaf crude extract of Mirabilis jalapa is an inducer agent of systemic resistance of red chilli to CMV. This experiment was objected to study the activity of peroxidase enzyme and the concentration of salicylic acid in the induced resistant plant to CMV by M. jalapa leaf crude extract. The results showed that the induced resistant plant to CMV by leaf crude extract of M. jalapa had a low CMV disease intensity, low content of virus, increased the activity of peroxidase enzyme 2 - 10 times; increased the salicylic acid 1.6 - 5 times. There were a significant interaction effect between disease intensity of CMV and salicylic acid content (r = 0.94), middle interaction effect between disease intensity of CMV and salicylic acid content (r = 0.46), low interaction effect between the virus content and disease intensity of CMV (r = 0.32), and salicylic acid and activity of peroxidase enzyme (r = 0.39); and no interaction effect between virus content and salicylic acid content (r = 0.05), and between virus content and activity of peroxidase enzyme ( r = 0.12 ).
Parasitism of The Rice Brown Planthopper Eggs in Various Periods of Time of The Day Siti Haryati; Y. Andi Trisyono; Witjaksono Witjaksono
Jurnal Perlindungan Tanaman Indonesia Vol 20, No 1 (2016)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.16621

Abstract

The rice brown planthopper, Nilaparvata lugens (Hemiptera: Delphacidae) is an important pest of rice. Since at the early stage, this pest is infested by parasitoids, but most cultural practices do not consider the existences of parasitoids in rice ecosystem. This study was aimed to determine the level of parasitism on N. lugens with regard to the time of the day. This information would be useful to minimize the effect of insecticide application to the parasitoids. Trapping  of  egg parasitoids in rice ecosystem was conducted every two hours from 05.00 a.m. until 04.00 p.m. Parasitism occured as early as at 05.00 a.m. (12.26% of the total parasitoid found), reached the peak abundance at 11.00 a.m. (36.13%), and decreased at 01.00 p.m. The parasitism level varied from 1.12 to 8.51% at 66 days after planting. The highest number of parasitoids and the highest parasitism level occured when trapping was conducted between 11.00 a.m.−01.00 p.m.. Before and after this period of time, the number of parasitoid emerged and parasitism were low. This suggest that if insecticide is necessary, it should be applied in the early morning or late afternoon. INTISARIWereng batang padi cokelat, Nilaparvata lugens (Hemiptera: Delphacidae), merupakan salah satu hama penting padi. Praktik budidaya pertanian padi belum memperhatikan aktivitas parasitoid dalam ekosistem. Tujuan dari penelitian ini yaitu untuk mengetahui tingkat parasitasi telur N. lugens pada beberapa waktu dalam sehari. Informasi ini akan bermanfaat untuk mengurangi dampak aplikasi insektisida terhadap parasitoid. Pemerangkapan parasitoid telur N. lugens di lahan padi dilakukan setiap dua jam yang dimulai pada pukul 05.00 sampai pukul 16.00. Parasitoid telur N. lugens mulai aktif pada pukul 05.00 (12,26%), mencapai puncaknya pukul 11.00 (36,13%), dan mulai mengalami penurunan pada pukul 13.00. Tingkat parasitasi pada tanaman padi umur 66 hari setelah tanam berkisar mulai 1,12−8,51%. Hasil pemerangkapan menunjukkan bahwa jumlah parasitoid yang paling banyak muncul dan tingkat parasitisme tinggi terjadi pada waktu pemerangkapan yang dilakukan pada pukul 11.00−13.00. Sebelum dan sesudah waktu pemerangkapan tersebut jumlah parasitoid dan tingkat parasitisme rendah. Hal ini menunjukkan bahwa apabila aplikasi insektisida diperlukan, maka harus dilakukan di pagi hari atau sore hari. 
Keefektifan Limbah Tembakau sebagai Insektisida Nabati untuk Mengendalikan Hama Helopeltis sp. pada Kakao Soekadar Wiryadiputra
Jurnal Perlindungan Tanaman Indonesia Vol 9, No 1 (2003)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.12289

Abstract

The effectiveness of tobacco waste extract to control Helopeltis sp. on cocoa had been tested in laboratory and field conditions. Side effects of the extract on growth of cocoa flower and predatory insects of Helopeltis sp. had also been observed after field application. The results revealed that tobacco waste extract at 10.0% concentration in water was effective in suppressing the population of Helopeltis sp. both in laboratory and field trials, and it was not significantly different compared to cypermethrin 0.1% formulation and BPMC 0.2% formulation. Application of tobacco extract and insecticides did not result in negative effects on the growth of cocoa flower, nevertheless the tratmens affected the population of predatory insects of spiders and Reduviidae.
Evaluasi Virulensi Virus Tungro dari Beberapa Daerah Endemi dan Uji Ketahanan Plasma Nutfah Padi Suprihanto Suprihanto; I Nyoman Widiarta; Dede Kusdiaman
Jurnal Perlindungan Tanaman Indonesia Vol 16, No 1 (2010)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.11749

Abstract

The purpose of this study was to evaluate the level of tungro virus virulence from some endemic areas, the suitability of planting resistant varieties, and resistance of rice germplasms. Tungro virus isolates were collected from tungro-endemic areas in North Sumatra, West Java, Central Java, South Sulawesi, West Sulawesi and Central Sulawesi. Tungro virus isolates were then inoculated using green leafhoppers Nephotettix virescens (Distant) to five differential varieties: Tukad Petanu, Bondoyudo, Kalimas, Tukad Balian, and Tukad Unda, and TN1 (as susceptible check). Level of virulence of tungro virus isolates and suitability planting of resistant varieties can be evaluated. Tungro virus isolate which has the highest virulence was used to test of resistant of rice germplasms. Results of tungro virulence test can be distinguished that there are 4 variants of virulence, namely: 073 (Subang, Bulukumba, Bantaeng, andWest Sulawesi isolates), 033 (Simalungun, Temanggung, and Palu), 031 (Kuningan andMagelang), and virulence 013 (Lanrang isolate). Tukad Petanu was still appropriate varieties to be planted in throughout the tungro-endemic areas (North Sumatra, West Java, Central Java, South Sulawesi, West Sulawesi, and Central Sulawesi). Bondoyudo variety still suitables to be planted in the areas of Simalungun, Kuningan, Magelang, Temanggung, Lanrang, and Palu. While Tukad Unda variety still have the suitability of planting for areas Kuningan, Magelang, and Temanggung. Between 100 assesions of germplasm which were tested to high virulence of tungro (073) one resistant assession has been identified (Deli assesion), and as many as 25 assesions showed moderately resistant reaction.
Dosage Mortality Studies with Bacillus thuringiensis and Neem Extract on Diamondback Moth, Plutella xylostella (Lepidoptera: Plutellidae) Intan Ahmad
Jurnal Perlindungan Tanaman Indonesia Vol 5, No 2 (1999)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.12750

Abstract

The objective of the study was to evaluate the responses of the diamondback moth, Plutella xylostella (L.) larvae to Bacillus thuringiensis and Neem extract. Therefore, dosage mortality studies using bioassay method were conducted on populations of P. xylostella from Garut, Pangalengan, and Lembang. Tests with B. thuringiensis, resulted in no significant differences in susceptibility between Garut and Pangalengan populations. However, those two populations were differed significantly in susceptibility to Lembang population which had the highest value of LC50 with resistance factor of 2.63, suggesting that a significant level of resistance against B. thuringiensis already occurred. In response to neem extract treatment, the results, as expected showed that there were no significant differences in susceptibility among the three populations. This indicates that neem extract could be used to control P. xylostella that has developed resistance to B. thuringiensis.
Biologi Diachasmimmorpha longicaudata (Ashmead) (Hymenoptera : Braconidae) Parasitoid Larva Lalat Buah Achmad Nasroh Kuswadi; Toto Himawan; Asep Ruhiyat Suherlan
Jurnal Perlindungan Tanaman Indonesia Vol 13, No 1 (2007)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.11809

Abstract

Biology of D. longicaudata, larval parasitoid of Bactrocera carambolae (Drew & Hancock) fruit fly was studied in the laboratory. Observation on ten pairs of adults, each pair confined in a laboratory cage, provided with third instar larvae of B. carambolae as their host, showed that the wasps mated 6-14 days after they emerged. They mated 2-5 times in their life time. Female wasps laid eggs until 18 days old, 1-6 eggs per day, with the average number of 58 eggs. Unmated female was able to lay viable eggs (parthenogenesis) that grew to male parasitoids (arrenotoky). The life cycle of D. longicaudata extended within 16 - 22 days. The eggs hatched 1-2 days after oviposition. Duration of the 1st, 2nd, 3rd and 4th instar larvae and the pupal stage were 1-2 days, 2-3 days, 3-4 days, 4-6 days and 4-5 days, respectively. First instar larvae was an active life stage, living in the third instar larvae of the host, while the following 2nd - 4th instar were inactive, living in the upae of the host. Adult parasitoid emerged from the puparium of host. In general, male wasp emerged 2-5 days earlier than the female.
Status Penyebaran Penyakit Tungro pada Padi di Jawa Barat I Nyoman Widiarta; Yulianto Yulianto; M. Muhsin
Jurnal Perlindungan Tanaman Indonesia Vol 3, No 1 (1997)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.12907

Abstract

An investigation on the status of tungro virus was conducted in the coastal lowland paddy fields less than 100 m above sea level, in Bekasi, Karawang, Subang, lndramayu, Cirebon and highland paddy fields more than 100 m to 1500 m above sea level in Subang, Bandung, Purwakarta, Cianjur, Sukabumi, Bogor of West Java in wet season crop 1996/1997 to discover recent status of tungro virus disease infestation. Disease incidence was observed randomly from 100 hills in each locality. Leaves of rice plant were also sampled from each observation field for ELISA test in the laboratory. Population density and species composition of green leafhopper were observed from 25 single stroke sweeping net. Tungro symptom as well as virus were not discovered in the coastal lowland paddy fields. Therefore, the coastal lowland paddy fields were declared still uninfected by tungro virus until recently. However, the disease symptom and virus were observed in highland. The green leafhopper species Nephotettix virescens was dominant in both lowland and highland. The species N. nigropictus was only identified from highland paddy fields. Population density of green leafhopper was higher in highland than in lowland. Factors contributing to the different in population density and change in the species composition were discussed.

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